Helicina duo, new name for H. sanctaemartae Breure, 1977, not H. sanctaemarthae Pilsbry & Clapp, 1902 (Gastropoda, Neritomorpha, Helicinidae)

2011·0.92 MB·

by  Breure, Abraham S H

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Helicina duo, new name for H. sanctaemartae Breure, 1977,
not H. sanctaemarthae Pilsbry & Clapp, 1902
(Gastropoda, Neritomorpha, Helicinidae)
Abraham S.H. Breure
NetherlandsCentreforBiodiversityNaturalis,P.O.Box9517,2300RALeiden,TheNetherlands;[email protected]
meantbyPilsbry&Clapp(1902)wasdescribedfrom
Duetohomonymy,areplacementnameisintroducedfor [Colombia,Dept.Magdalena,]ElLibano,at6000feet[~1830
HelicinasanctaemartaeBreure,1978,notHelicinasanctaemar- m]elevation.TheholotypeisintheCarnegieMuseum,
thaePilsbry&Clapp,1902. Pittsburgh(CM46762),andishererefigured. 55
WhenIsummarizedtheknowledgeonlandsnailsfrom
Keywords:Gastropoda,Helicina,Colombia,taxonomy,homonymy. theSantaMartaregion(Breure,1984),Isynonymizedboth
taxa.Recently,twocolleaguesindependentlyhavedrawn
myattentiontothefactthatbothtaxashowsufficientdiffe-
In1977,afieldstudywascarriedoutoftheBuritaca─La rencestoberegardedasseparatespecies.ThereforeIhere
Cumbretransectinthecontextoftheproject“Ecologyand introduceHelicinaduo,asanewnameforH.sanctaemartae
palaeoecologyoftheSierraNevadadeSantaMarta”, Breure,1977,notH.sanctaemarthaePilsbry&Clapp,1902.
Colombia(VanderHammen,1984).Duringthissurveya Themaindifferencesbetweenthetwotaxaaresummarized
smallcollectionoflandmolluscswasobtained,ofwhichone inTable1.Itmaybenotedthatthespecieshavebeenfound
newspecieswasdescribedasHelicinasanctaemartaeby atdifferentelevations(1830vs.2900m);theirrangesneedto
Breure(1977).ThetypelocalityisDept.Magdalena,water- beestablished,however,bycarefulsamplingintheSanta
shedbetweenRíoFrioandQuebradadelPáramo,2900m; Martaregion.
holotypeinInstitutodeCienciasNaturales,Bogotá(ICNB), TheetymologyofthenewnameisbasedontheLatin
paratypeinNCBNaturalis(RMNH55312). wordduo(anouninapposition),andreferstothetwo
AtthetimeofwritingIwasunawareofHelicina colleagueswhosuggestedthehomonymy:mygoodfriend
santaemarthaePilsbry&Clapp,1902.Althoughoneletter DrFranciscoBorrero(Cincinnati),andDrEdgarLinares
differencebetweentaxonnamesisgenerallysufficientto (InstitutodeCienciasNaturales,Bogotá).Beingboth
preventhomonymy(ICZNArticle57.6),thevariationin Colombians,theysharetheirkeeninterestinColombian
spellingofbothnamesfallswithintherangewhichisruled non-marinemolluscs,andhavebothcollectedintheSanta
byICZNArticle58asdeemedtobehomonyms.Thisspecies Martaregion.
Basteria75(1-3):55-56
B75-Breure-Helicina:Basteria-2010 26/06/2011 14:53 Page 56
Fig.1.HelicinaspeciesfromtheSantaMartaregioninColombia.A-E,H.duonom.nov.A-D,holotypeofH.sanctaemartaeBreure,1977(ICNB),shell
height9.7mm;E,paratype(RMNH55312),shellheight10.2mm.F,H.sanctaemarthaePilsbry&Clapp,1902,holotype(CM46762),shellheight11.5mm
(PhotoF.Borrero).
56
References
Breure,A.S.H.,1977.SomelandmolluscsfromtheSierraNevadade
SantaMarta,Colombia.─NetherlandsJournalofZoology27(3):
299-304.
Breure,A.S.H.,1984.SurveyofthelandMolluscaoftheSierraNevada
deSantaMarta,Colombia.In:T.vandeHammen&P.Ruiz,La
SierraNevadadeSantaMarta(Colombia)transectoBuritaca─La
H.duo H.sanctaemarthae
Cumbre.─StudiesontropicalAndeanecosystems2:487-500.Ber-
Shellheight/diameterratio 0.70 0.85 lin/Stuttgart.
Hammen,T.vander,1984.Introducción:elestudiodeltransectoBuri-
Shellperiphery keeled rounded
taca─LaCumbre.In:T.vandeHammen&P.Ruiz,LaSierraNe-
Redspiralband belowsuture abovesuture
vadadeSantaMarta(Colombia)transectoBuritaca─LaCumbre.─
StudiesontropicalAndeanecosystems2:15-27.Berlin/Stuttgart.
Table1.MaindifferencesbetweenHelicinaduoandH.sanctaemarthae Pilsbry,H.A.&Clapp,G.H.,1902.NewlandshellsfromtheSantaMarta
mountains,Colombia.─TheNautilus15:133-137.
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