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Neocyclops Gurney from Brazilian sandy beaches (Copepoda: Cyclopoida) PDF

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Preview Neocyclops Gurney from Brazilian sandy beaches (Copepoda: Cyclopoida)

Bijdragentot de Dierkunde,63 (3) 163-172 (1993) SPBAcademie Publishingbv, The Hague Neocyclops Gurney from Brazilian sandy beaches (Copepoda: Cyclopoida) Guilherme RibeiroLotufo& Carlos EduardoFalavigna da Rocha Departamento deZoología, InstitutodeBiociências, Universidade deSaoPaulo, CaixaPostal20520, 01498 — Sao Paulo, Brazil Keywords: Taxonomy, Crustacea, Cyclopoida, Neocyclops, interstitial marine fauna, Brazil Abstract dant la muede cecopépodite;leplande fusionestmarquépar une lignepeu distincte etincomplètesurla surface frontale — Neocyclops medius Herbst, 1955 and Neocyclops vicinus lignepar erreur interprétéepar Herbst (1955)comme articula- (Herbst, 1955)are redescribed fromintertidal interstitial water tion fonctionnelle. Des topotypes de N. salinarum (Gurney, ofsandy beachesalongthe Brazilian coast. ThemaleofN. vici- 1927)examinés,montrentunefusion similaire decesarticles de la patte 4. nusis described for the first time. Neocyclops vicinus can be easily distinguished from N. Des populationsde la Mer Noire considérées commeappar- tenant à N. vicinus diffèrent des exemplaires du Brésil par medius by therelativelylongercaudal rami,the presence ofa mandibular palp, and the sexually dimorphicantenna. plusieursdétails morphologiques,cequi permet la supposition qu’ils’agiraitd’untaxondistinct(peut-êtreN.remanei (Herbst, This studyrevealed the leg4endopoditesegments2and 3 as 1952)). being fused in both species. The terminal segment of the 2-segmented leg 4 endopoditeofthe copepodite5 does not Une diagnosedu genre Neocyclops est donnée. differentiate into 2 distinct segments duringthe molt toadult. Theplaneoffusionis markedby athin andincompleteline on the frontal surface. This scarwas erroneouslyinterpretedasa Introduction functional articulation by Herbst (1955). Topotypes of N. salinarum (Gurney, 1927)examined showed asimilar fusion of Neocyclops hasbeen recordedliving incoastaland those segments ofleg4. Populationsfrom the Black Sea coast ascribed to N. vicinus brackish waters, mostly ininterstitialwaters. differfrom the Brazilian specimensinanumber ofmorphologi- Petkovski (1986) provided thebest critical review cal details,sufficient toproposethat theyrepresent aseparate of the taxonomieposition of the 12 species and taxon, perhapsN.remanei (Herbst, 1952). subspecies ofthegenus. He confirmedthe opinion A diagnosisforNeocyclops isprovided. thatNeocyclops shouldbeconsideredaseniorsyn- onym ofEurycyclops Sewell, 1949and Pareuryte Herbst, 1952, as was definitively proposed by Ple§a Résumé (1981). Pesce(1985), Dussart&Defaye (1985), and Herbst (1986) also accepted Plena's proposition. RedescriptiondeNeocyclops mediusHerbst, 1955 et deN. vici- Based on the numberof segments comprising the nus (Herbst, 1955) des eaux interstitielles intercôtidales des plagesdesable lelongdescôtes duBrésil. Le mâledeN. vicinus leg 5 exopodite in males, Petkovski (1986) recog- estpour lapremière fois décrit. nizedtwo groupsofspecies, whichwere considered Neocyclops vicinuspeut être aisémentdistinguédeN. medius ofsubgeneric rank. Species having leg 5 exopodite par sesbranches furcalesrelativement pluslongues, laprésence 2-segmented were included in Protoneocyclops, d’un palpemandibulaire etl’antenne à dimorphismesexuel. while those species with leg 5 exopodite 1-seg- Lesarticles 2et3 del’endopoditede la patte 4 sontfusionnés dans les deux espèces. L’article terminal de l’endopoditebiar- mented were grouped in Neocyclops s. str. The ticulédela patte4ducopépodite5nedevientpasbiarticulé pen- diagnostic characterofProtoneocyclops suggested 164 G.R. Lotufo & C.E.F. da Rocha - Neocyclops from Brazilian sandy beaches by Petkovski corresponds to the ancestral state Liliana Forneris leg.: Ubatuba,Codo beach, 22 Feb. 1972, 4 within thecyclopoids (Huys & Boxshall, 1991). 9 9;Lambertobeach(23°29'55"S45°7'15"W),25Feb.1972, Herbst(1986)listed5 species ofNeocyclops from 2 9 9; Ilhabela: Siriúba beach (23°45'5"S45°21'15"W),29 May 1975,7 9 9 and 1 cr. marine interstitial waters. In Brazil, the genus is GuilhermeR.Lotufoleg.:Ubatuba: Codóbeach,6July1991, represented by Neocyclops (Neocyclops) medius 20 9 9 and 10 crcr; Sâo Sabastiâo: Cigarras beach Herbst, 1955and N. (N.) vicinus (Herbst, 1955), (23°45'15"S45°24'45"W), 17Sep. 1990,1 9;Sao Francisco both from sandy beaches in Ilhabela(State ofSâo beach (23°45'30"S45°24'40"W),17Sep. 1990, 2 9 9 and 2 Paulo) and inSalvador(State ofBahia). During an ao"; 14June 1991,2 9 9 and 2 crcr;Olaria beach (23°46'S intensive and extensive survey of theintertidal in- 45°24'20"W), 15 June 1991, 20 9 9 and 13 era;Arrastâo beach(23°46'20"S45°24'15"W), 17Sep.1990,19; 11 March terstitial faunaalong thecoast of theState ofSâo 1991,2 9 9; Pontalda Cruzbeach (23°46'40"S45°24'W), 17 Paulo, the two species were commonly foundand Sep. 1990, 8 9 9; 11 March 1991, 2 9 9; Deserta beach areasonablenumberofspecimens couldbecollect- (23°47'5"S 45°24'20"W), 17 Sep. 1990, 3 9 9; 11 March ed. Inaddition, afewspecimens ofN. vicinuswere 1991, 1 cr;Calhetas beach(23°49'15"S45°28' 10"W),16Sep. identifiedfromasamplefromasandy beachinSal- 1990, 1 9; Ilhabela: Pinto beach (23°44'30"S45°20'52"W), vador (State of Bahia). Based onthis material, the 10March 1991, 1 9 and 1 cr;Garapocaiabeach (23°44'50"S 45°20'50"W), 10March 1991, 1 9; Vianabeach (23°45'50"S species areredescribed here. 45°21'50"W),6Nov. 1990,2 9 9; 10March 1991,3 9 9 and 2 era;Engenhod'Aguabeach (23°47'25"S45°21'50"W),6 Material and methods Nov. 1990,2 9 9- Lotof36 9 9 and 1 cr fromCodó beach andlot of21 9 9 and 6 crcr from Olariabeach,Sâo Sebastiâo in MZUSP(coll. Theinterstitial fauna wascollected in theintertidal zoneofsan- nrs. 11383 and 11384,respectively) dybeaches. Theinterstitialwater,collected in holes dugintothe beach duringlow tide, wasfiltered through a 125 or 200fim mesh,andthe animalsretained werefixed in4% formalin. Har- Description offemale.- Body length 605-700/¿m pacticoidsand specimensofHalicyclops, Procyclopina,Cyclo- (n = 10). Prosome: urosome ratio = 1.3-1.4 : 1. pina, and Cuipora were collected togetherwith Neocyclops Posterior margin ofall prosomites and urosomites (Lotufo & Da Rocha, 1991; Lotufo & Da Rocha, 1993). (except analsomite) smooth (Fig. 1). Genital dou- Granulomere and salinityanalyses were carried outonly for ble somite (Fig. 2)about as long as wideand with samplesfrom Sâo Paulo collected by G.R.Lotufo. Intactspecimenswereexamined in85% lacticacid. Dissected lateralexpansions bearing spiniform projections at parts weremounted inglycerinein slidessealed with glyceelfor first third. Seminalreceptacle as shown in Fig. 2. preparingdrawings with a camera lucida ona Leitz Laborlux Analsomite withrow ofspinules onposterior edge. microscope. Pseudoperculum as inN. vicinus(Fig. 19). Caudal Someofthespecimensexaminedweredepositedinthe Museu rami(Fig. 3) 1.5-1.7timeslonger than wide. Dor- deZoología,Universidade deSào Paulo(MZUSP),Sào Paulo. Theremainingmaterial isinC.E.F.daRocha's collection atthe salseta 1.7 timeslonger thanouter apical seta. In- DepartamentodeZoología,Universidade deSao Paulo. ner apical seta 1.3 times longer than outer apical The terminologyappliedto body and appendagesegmenta- seta. Allcaudalsetae plumose. tion follows that ofHuys&Boxshall (1991). Labrum(Fig. 4) with6-10teethon freemargin. Antennule(Fig. 5) 12-segmented. Armature as Taxonomy follows (Roman numeral = segment; Arabic numeral = seta; ae = aesthetasc): I - 8; II - 4; III Family Cyclopidae Burmeister, 1834 - 2; IV- 6; V- 3; VI - 2; VII- 2; VIII - 3; IX - 2 + Subfamily HalicyclopinaeKiefer, 1927 ae; X - 2; XI - 2 + ae;XII - 7 + ae. Antenna(Fig. 6) 4-segmented. Basis with2 inner Neocyclops medius Herbst, 1955 apical setae. Endopodite segments 1-3 with 1, 5, (Figs. 1-17) and 7 setae, respectively. Setarepresenting exopo- ditelacking. Holotypenot examined. Mandible(Fig. 7) reduced to coxa with gnatho- Material examined. - Brazil,StateofSâoPaulo. CarlosE.F.da Rocha leg.: Ubatuba: Codó beach (23°30'S 45°7'20"W), 4 base. Palp lacking. Nov. 1983,36 9 9 and 2era. Maxillule(Fig. 8)withenlarged praecoxabearing Bijdragen tot deDierkunde, 63 (3) - 1993 165 Figs. 1-5.Neocyclopsmedius Herbst, 1955,￿ fromCodó beach,Ubatuba: 1,habitus,dorsal;2,genitaldoublesomite,ventral,show- ing seminal receptacle; 3,caudal rami,dorsal; 4,labrum;5, antennule. Scale bars 50 µm. 166 G.R. Lotufo & C.E.F. daRocha - Neocyclops from Brazilian sandy beaches Figs. 6-11.NeocyclopsmediusHerbst, 1955,￿ fromCodóbeach,Ubatuba: 6,antenna; 7,mandible;8,maxillule;9,maxilla;10,max- illiped;11,leg 1.Scale bars 50µm. arthrite with 7 setae on innerface and4 spines on ing exopodite, and endopodite 1-segmented with 3 distalmargin. Palp consistingoflong basis bearing setae. 3setaeon innermargin, 1 proximal seta represent- Maxilla(Fig. 9) 4-segmented. Praecoxa bearing Bijdragen tot deDierkunde, 63 (3) - 1993 167 Figs. 12-15.Neocyclops medius Herbst, 1955,from Codó beach,Ubatuba: 12,￿ leg 3; 13,￿ leg4,caudal face; 14,￿ leg5; 15, ￿ habitus,dorsal. Scale bars 50 µm. 168 G.R. Lotufo & C.E.F. da Rocha - Neocyclops from Brazilian sandy beaches enditewith 2setae. Coxabearing 2endites, proxi- Habitat.- Mediumandcoarse sand(median grain malmostwith 1 setaand distalmost, enlarged, with size 300-1150 /xm). Salinity ranged from 1 to 2setae. Basis drawn out into claw fusedto endite, 32%o. Temperature ranged from 20 to 32°C. with 1 stout seta longer than claw and 1 reduced seta set basally on claw. Free endopodite 1-seg- Distribution. - Brazil, State of Bahia: Salvador mented with 5 setae. (type-locality); State of Sâo Paulo: Ubatuba, Sào Maxilliped (Fig. 10)4-segmented. Syncoxa with Sebastiâo, and Ilhabela. West Indies: Tortuga, 3 setae. Basis with 2 setae. Endopodite 2-seg- Blanquilla, Los Roques, Margarita, and Bonaire mented, with2setaeonproximal segmentand3 se- (Pesce & Galassi, 1993). tae on distalsegment. Legs 1-4armature as follows(Roman numerals Discussion. - The specimens were identifiedas representing spines; Arabic numerals indicating Neocyclops medius because they agreed with the setae): original description in respect to body shape and length, shape ofgenital doublesomite, proportions Coxa Basis Endopodite Exopodite and armatureof caudalrami,absenceofmandibu- Leg 1 0-1 1-1 0-1,0-2,11-4 1-1,1-1,111-5 Leg 2 0-1 1-0 0-1,0-2,111-3 1-1,1-1,IV-5 lar palp, and armature of leg 5 in both maleand Leg 3 0-1 1-0 0-1,0-2,111-3 1-1,1-1,IV-5 female. Leg 4 0-1 1-0 0-1,0-2,111-2 1-1,1-1,111-5 There are differences between Herbst's (1955) description and the specimens examined here. Leg 1 exopodite segment 1 (Fig. 11) with very Herbst represented the leg 4 endopodite as 3-seg- reducedinnerseta. Leg 2 differingfromleg 3(Fig. mentedand apparently hadno difficultyinobserv- 12)insizeandinhaving moreslenderspines onexo- ing an articulationbetween the second and third podite. Leg 4endopodite segments2and3(Fig. 13) segments. He didnot point itoutinthetext. In the fused, scar visible as thin and incomplete suture specimens from our samples, this articulation is only on frontalsurface.Leg 4endopodite segment seen as athin and incomplete suture on the frontal 2with 3inner distalsetae, and all setae on exopo- surfaceandis interpretedas thefusionscarbetween ditesegment3 modified, being plumose proximally those two segments. No line couldbe seen on the and with hyaline membranefinely serrate distally. caudal surface. Examination of the copepodid Leg 5(Fig. 14)3-segmented, joined by intercoxal stages revealed that what actually happens is a sclerite. Coxaunarmed.Basis with 1 plumose outer failureof divisionoftheterminalsegmentoftheleg seta. Terminalsegment(exopodite) 3 times longer 4exopodite ofthecopepodite into 2 segments dur- thanwide, with 3 spines shorter than segmentand ing themolt toadult. Ifthesescars alsooccurredin 1 seta; inner apical spine about 1.1 times longer Herbst's specimens, onemaysuppose that he con- thanouter apical spine, and 1.4 timeslonger than sidered them a functional articulation.The trans- lateralspine. formationofplumose setae intomodifiedones oc- curs inthe change from copepodid 5 to6. Herbst Description of male (Fig. 15). — Body length didnotrepresentthedistalseta ofleg 4endopodite 465-520/xm («=10). Prosome : urosome ratio = segment2, making itimpossible toknow whetherit 1.3 : 1. Urosome with 6 somites. was modified. He didnot represent the short seta Antennule16-segmented, armedas in N. vicinus onthe leg 1 exopodite 1 in his drawings either. (cf. Fig. 22). WithinNeocyclops, only N. salinarum(Gurney, Leg 5(Fig. 16)with 1innersetainadditiontoele- 1927), the type-species, and N. medius have the ments presentin female. mandible lacking a palp. Neocyclops salinarum Leg 6 (Fig. 17) consisting of serrate innerspine differs fromN. mediusin possessing an antennule and 2 setae. of 8 segments and, according to Por's (1973) re- The maleis identicaltothe femalein all other description, in possessing a seta representing the respects. exopodite of the antenna. Examinationof speci- Bijdragen tot deDierkunde, 63 (3) - 1993 169 Figs. 16-17. Neocyclops medius Herbst, 1955,￿ fromCodó beach, Ubatuba: 16, leg5; 17,leg 6. Figs. 18-24.Neocyclops vicinus(Herbst, 1955),from Codó beach,Ubatuba: 18,￿ habitus,dorsal;19,￿ genitaldoublesomite,ven- tral,showingseminalreceptacle;20, ￿ analsomiteandcaudal rami;21,￿ mandible;22, ￿ antennule;23,￿ antenna;24,￿ abnormal caudal rami. Scale bars 50 µm. 170 G.R.Lotufo & C.E.F. daRocha - Neocyclops from Brazilian sandy beaches mensofN. salinarumfromthe SirbonianLagoon 9;Barreiros beach (23°45'40"S45°21 '5"W),6Nov. 1990,3 (Sabkhat and Bardawil), Mediterranean coast of 9 9; Pequeá beach (23°47'10"S 45°2r50"W), 10 March Sinai, kindly provided to us by Dr. F.D. Por, con- 1991,19 and 1 o*; 27July 1991,109 9 and 5aa;Feiticeiras beach(23°49'10"S45°22'30"W),10March1991,1 9;Guaru- firmedboththe presence of the outer seta on the já:Guaiúba beach (24°1'5"S46°17'45"W),2Feb. 1991, 1 cr. basis of the antenna in both sexes and a fusion Lot of30 9 9 and 2 o-cr from Codó beach,Ubatuba, and between leg 4endopodite segments 2 and 3 as ob- lotof 15 9 9 and 10cr cr fromGrandeBeach,Anchieta Island servedinour specimens ofN. medius. BothGurney inMZUSP (coll. nrs. 11385 and 11386,respectively). (1927) and Por (1973) lapsed in observation by representing the leg 4 endopodite as having 3 seg- Description of female (Fig. 18). - Body length ments. Thefusionis clearly seenwhenthe articula- 590-970)xm (/?= 10). Prosome : urosomeratio = tionbetweentheendopodite segments2and3ofthe 1.3-1.4: 1. Genitaldoublesomite (Fig. 19)as inN. leg4is compared totheactually functionalarticula- medius. Anal pseudoperculum (Fig. 20) with tionsonleg 4,as wellas tothoseonotherswimming smooth margin. Caudal rami (Fig. 20) 2.5-3.0 legs. times longer than wide. Dorsalseta 2.2-2.5 times longerthanapical seta. Innerandouterapical setae equal in length. Allcaudal setae plumose. Neocyclops vicinus (Herbst, 1955) Labrum similar in general outlinetothat ofN. (Figs. 18-24) medius, butwith 8 to 10 teeth on free margin. Mandible(Fig. 21) with gnathobase, and palp Syn. - Pareurytevicina Herbst, 1955. Non Eurycyclops remanei vicinus; Pleça, 1963; Monchenko, comprised of 2 setae inserted on reduced lobe. 1974; 1975; 1979. Antennule, antenna, maxillule, maxilla, maxil- liped, and legs 1—5 as in N. medius. Holotype not examined. Material examined. - Brazil,Carlos E.F. da Rocha leg.:State Description of male. - Body length 480-600/xm ofBahia, Salvador: Bregaribeach (12°55'S 38°31'W), 4Nov. («=10). Prosome : urosome ratio = 1.3 : 1. Uro- 1985,2 çç and 2 crcr. State ofSâo Paulo, Ubatuba: Codo beach (23°30'S45°7'20"W),4 Nov. 1983,499 9 and 2cr <7; some with 6 somites. Some males with abnormal Sâo Sebastiâo: Segredobeach (23°49'38"S45°25'30"W),6 caudalrami (Fig. 24). July 1983,4 9 9 and 5 cr cr;7 July1983,6 9 9 and 4 crcr; Antennule(Fig. 22) 16-segmented, armed as fol- Peruíbe: RioVerde beach (24°34'S47°13'W), 30Oct. 1984, 1 lows(Roman numeral = segment;Arabicnumeral 9 and 1 cr. Liliana Medeiros leg.:State ofSaoPaulo,Ubatuba: Anchieta = seta; sp = spine; ae = aesthetasc): I - 8 + 3 ae; Island,Grande beach(23°32'10"S45°4'20"W), 30July1984, II - 4; III - 2; IV - 2 + ae; V- 2;VI - 1; VII - 15 9 9 and 10 ace. 2; VIII - 2; IX - 2 + ae; X - 2; XI - 2; XII - Guilherme R.Lotufoleg.:StateofSâo Paulo,Ubatuba: Bra- 2 sp; XIII - 1 + sp + ae; XIV - 0; XV - 1; vado Sul beach (23°30'10"S45°10'30"W),7 Oct. 1990, 1 9; XVI -11 + 2ae. Vermelha do Sul beach (23°30'30"S45°10'30"W), 7. Oct. Antenna(Fig. 23) differing from that of female 1990, 1 9; Caraguatatuba: Martim de Sá beach (23°38'S 44°23'30"W), 5Nov. 1990,1 9;Sâo Sebastiâo:Cigarrasbeach by presenceofseta representing exopodite at outer (23°45'15"S45°24'45"W),17Sep. 1990, 1 9; 15 June 1991, corner of basis, almostreaching tip of antenna. I 9 and 1 cr; Sâo Franciscobeach (23°45'30"S45°24'40"W), Leg 6 as inmaleofN. medius. IIMarch 1991, 9 9 9 and 5 aa;14June 1991,9 9 9 and 3 The maleis identicalto the femalein all other o*cp;Olaria Beach (23°46'S 45°24'20"W), 15 June 1991, 18 respects. 9 9 and4 aa;Pontalda Cruzbeach (23°46'40"S45°24'W), 11March 1991,1 9; Desertabeach(23°47'5"S45°24'20"W), 11Sep. 1990,19; PortoGrandebeach (23°47'30"S45°24'W), Habitat. - Mediumand coarse sand(median grain 11 March 1991, 1 9; Zimbros beach (23°49'25"S 45°25' size 300-1150 (xm). Salinity ranged from 15 to 10"W), 11 March 1991, 3 9 9 and 5 cr cr; Segredo beach 32%o. Temperature ranged from21 to 32°C. (23°49'38"S45°25'30"W),15June 1991,109 9 andlOaa; 27 July 1991, 12 9 9 and 5 crcr; Ilhabela: Pinto beach (23°44'30"S45°20'52"W),10March 1991,2 9 9 and4o-o-; Distribution. - Brazil, StateofSâoPaulo: Ilhabela Garapocaiabeach (23°44'50"S45°20'50"W),6 Nov. 1990, 1 (type-locality), Ubatuba, Caraguatatuba, Sâo Bijdragen totdeDierkunde, 63 (3) - 1993 171 Sebastiâo, Guarujá, and Peruíbe; State of Bahia: ingthe seta representing theexopodite oftheanten- Salvador.WestIndies:LosRoques, Jamaica(Pesce na in the female. & Galassi, 1993). Discussion. - The specimens were identifiedas N. Emendationof diagnosis of Neocyclops vicinus(Herbst, 1955)becausethey agreed withthe original description in respect to body shape and Neocyclops is definedas follows: antennuleof 8 to length, genital doublesomiteshape, caudalramiar- 12segments, mandibularpalp absentorreducedto mature and proportions, armature of leg 5, and a small lobe with 1 or 2 setae, maxilliped with presence of 2 setae on the mandibularpalp. Just 2-segmented endopodite, leg4exopodite segment3 like forN. medius, Herbstrepresented theleg 4en- with all setae modified(plumose at the base and dopodite as 3-segmented, interpreting thescars we finely serrate on the more distal part of the seta), observed as a functionalarticulation.Inhis draw- andthegenital doublesomiteexpanded atthe prox- ing, Herbst didnot represent the distalseta ofleg imalthird. If confirmedfor theother species, the 4endopodite segment2, presentinour materialas fusion of leg 4 endopodite segments 2 and 3 ob- a modified seta. servedinbothBrazilianspecies andinN. salinarum Neocyclops vicinus was described as Pareuryte can be considered anotherdiagnostic character of vicina by Herbst (1955). Pleça (1963) transferred it the genus. to the genus Eurycyclops as a subspecies of E. remanei(Herbst, 1952). Plesa's new combination was adopted by Monchenko (1974; 1975; 1979). Acknowledgements Fortunately, both Pleça and Monchenko provided descriptivedataaboutfemalesandmalesthey iden- This research was supported by a grant from Fundaçâo de AmparoàPesquisado EstadodeSâo Paulo(FAPESP).Weare tifiedfrom theBlack Sea. Females from the Black gratefultothe Centro deBiologíaMarinha da Universidade de Sea are larger (body length ranging from 720 to Sao Pauloand the InstitutoOceanográficoda Universidade de 1100/¿m) and possess longer caudal rami (length : Sâo Paulo forprovidinglogisticalsupport for the fieldwork. width ratio = 2.72—3.48 : 1) in relation to the We are also gratefultoDr. Janet Reid for improvingthe Brazilianfemales. They also differfromour speci- EnglishtextandtoDr.FrancisDov Porforprovidingspecimens ofNeocyclops salinarum. Mr. Levi Ciobotariu inked the line mensinhaving two plumose setae ontheinnermar- drawings. ginofthe leg 4endopodite segment2. Monchenko (1975) illustratedthefemaleantenna withshortseta representing the exopodite, which was not men- References tionedby Ple§a (1963). No author mentioned the existence of sexual Dussart,B.H.&D. Defaye,1985.Répertoiremondial desCopé- podesCyclopoïdes: 1—236 (C.N.R.S., Paris). dimorphism in the antenna ofthe Black Sea speci- Gurney, R., 1927.Zoologicalresultsofthe CambridgeExpedi- mens, a charactercertainly helpful inmaking a de- tion to the Suez Canal, 1924. XXXIII. Report on the cision about the identity of these specimens. The Crustacea: - Copepoda(littoraland semi-parasitic).Trans, differencespointed out hereindicatethatthe Black zool. Soc.Lond., 22(6):451-577. Sea specimens shouldbe ascribed to another spe- Herbst,H.V., 1952.NeueCyclopoidaGnathostoma(Crustacea Copepoda) des Kiistengrundwassers. Kieler Meeresforsch., cies. They seem to be more closely related to N. 9(1): 94-111. remanei fromthe North Sea than to N. vicinus. Herbst, H.V., 1955. Cyclopoida Gnathostoma (Crustacea N. vicinusis easily separated fromN. mediusby Copepoda) von der brasilianischen Atlantikkiiste. Kieler possessing longer caudal rami, mandibularpalp Meeresforsch., 11(2): 214-229. with 2 setae, and sexually dimorphic antenna. It Herbst, H.V., 1986. Copepoda: Cyclopoidaaus Meeres und Brackwasser-Interstitial. In: L. Botosaneanu (ed.), Stygo- also differs inthe shape of the seminalreceptacle. fauna mundi: 313-320 (E.J. Brill/Dr.W.Backhuys,Leiden). On the other hand, N. vicinus differs from N. Huys, R. & G.A. Boxshall, 1991. Copepodevolution: 1-468 remaneiinhaving shorter caudalramiand in lack- (Ray Society,London). 172 G.R. Lotufo & C.E.F. da Rocha - Neocyclops from Brazilian sandy beaches Lotufo,G.R.&C.E.F.daRocha, 1991.Copepodsfrom interti- tionofNeocyclops(Protoneocyclops)geltrudeaen.sp.Bijdr. dal interstitial waterofSalvador,Brazil. I.Cuiporajanaina Dierk.,63(2): 115-120. gen. n., sp.n.&Cyclopinacaiala sp.n.(Cyclopoida:Cyclo- Petkovski, T.K., 1986.Zur Taxonomie des Genus Neocyclops pinidae). Bijdr. Dierk., 61(2): 107—118. Gurney, 1927 (Crustacea, Copepoda, Cyclopoida). Acta Lotufo,G.R. & C.E.F. da Rocha, 1993. Intertidal interstitial Mus.maced. sci. nat., 18(2): 27-46. Halicyclopsfrom the Brazilian coast (Copepoda: Cyclopoi- Ple$a,C., 1963.Étudesur la faune interstitielle littorale dela da). Hydrobiologia,264: 175-184. Mer Noire. III. Résultats préliminairesdes recherches surla Monchenko, V.I., 1974. Cyclopidae. Fauna Ukrai'ni, 27(3): côte roumaine, avec aperçu spécial sur les Cyclopoïdes 1-452,figs. 1-142. Gnathostomes (Crustacea, Copepoda). Vie Milieu, 14(4): Monchenko,V.I., 1975.Eurycyclops (Crustacea,Copepoda)in 775-813. faunaofthe Soviet Union. Dokl. Akad. Nauk ukr. SSR, (B) Pleça, C., 1981.Cyclopoïdes(Crustacea, Copepoda)deCuba. 1975(5): 471-477. Résultats des Expéditions Biospéologiques Cubano-rou- Monchenko, V.I., 1979. Marine and brackish Cyclopoida maines àCuba, 3: 17-34. (Crustacea,Cyclopidae)in theAzov-Black Seabasin. Hidro- Por, F.D., 1973. The benthic Copepodaofthe Sirbonian La- biol. J., 15(2): 17-20. goon(Sabkhat elBardawil). Cah. Biol. mar., 14:89-107. Pesce, G.L., 1985. Amsterdam Expeditionstothe WestIndian Sewell,R.B.S., 1949.The littoral and semi-parasiticCyclopoi- Islands,Report 45. Cyclopids (Crustacea, Copepoda)from da,the Monstrilloida and the Notodelphyoida.Scient. Rep. West Indian groundwater habitats. Bijdr. Dierk., 55(2): J.Murray Exped., 1933-34,9(2): 17-199. 295-323. Pesce, G.L. & D.P. Galassi, 1993. Amsterdam Expeditions totheWestIndian Islands,Report74.Thegenus Neocyclops Received: 29September 1992 Gurneyin the WestIndies: anupdateincludingthe descrip- Revised: 26February 1993

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