Revisiting the disjunct distribution of Conopleura Hinds, 1844 (Mollusca: Gastropoda: Drilliidae)
Author
Nappo, Andrea
Author
Rey, Xabier
Author
Pellegrini, Daniel
Author
Bonomolo, Giuseppe
Author
Crocetta, Fabio
text
Zootaxa
2018
2018-03-12
4392
3
567
587
journal article
30552
10.11646/zootaxa.4392.3.7
34bb70ed-5193-4153-9a16-0f12395fb82f
1175-5326
1196251
1DC5056D-5CF3-4A73-8D79-73C4EE0CF2BA
Order
NEOGASTROPODA Wens, 1938
Superfamily
CONOIDEA Fleming, 1822
Family
DRILLIIDAE Olsson, 1964
Genus
Conopleura
Hinds, 1844
Type
species by monotypy:
Conopleura striata
HINdS, 1844
—NEw
GuINEA
ISLANd
(cENTRAL INdO-PAcIfIc).
Genus redescription:
SPEcIES wITH A SmALL SHELL (uP TO ~
20 mm
), SOLId, SLENdER ANd bIcONIcAL wITH AcumINATE- ELONgATE SPIRE, ALmOST wHITISH IN cOLOuR, SOmETImES wITH bROwNISH TINgES OR PATcHES. PROTOcONcH Of ~2.25–2.5 wHORLS, SEmI-TRANSLucENT wHITISH, SmOOTH. APEx dEPRESSEd, SEcONd ANd THIRd wHORLS SLIgHTLy cONVEx. TELEOcONcH INcREASINg IN dIAmETER uP TO LAST wHORL, cONSTITuTINg AROuNd HALf Of TOTAL SHELL HEIgHT ANd SIgNIfIcANTLy ExPANdEd AT SHOuLdER ANd SubSEquENTLy NARROwINg. SuTuRE dISTINcT, SLIgHTLy INcISEd wITH A SuLcuS, SHOuLdER cORONATE. SHOuLdER SuLcuS mAdE Of A SERIES Of dEEP SEPTA SEPARATEd by RAdIATINg LAmELLAE ORIgINATINg fROm ANAL SINuS. AxIAL ScuLPTuRE fINE, POSSIbLy cONSTITuTEd by SEVERAL SubSEquENT gROwTH LINES. SPIRAL ScuLPTuRE IN THE cONVEx PART Of wHORL cONSISTINg Of STRONg PRImARy cORdS, OfTEN fLExuOuS wHEN cROSSINg gROwTH LINES. APERTuRE NARROw, SINuOuS ANd AxIALLy ELONgATEd, uNIfORmLy wHITISH-yELLOwISH. SLIgHT fALSE umbILIcuS PRESENT. COLumELLAR EdgE wITH SLIgHTLy ExPANdEd cALLuS. OuTER LIP THIN wITH STROmbOId NOTcH. ANAL SINuS dEEP, U-SHAPEd, cLOSE TO SuTuRE. SIPHONAL cANAL THIck, SHORT ANd bROAd. RHOmbOIdAL OPERcuLum wITH TERmINAL NucLEuS. ANATOmy ANd RAduLA uNkNOwN.
Remarks:
SHELLS Of
Conopleura
SPEcIES ARE kNOwN fROm A wIdE INdO-PAcIfIc AREA (SEE bELOw), ALTHOugH THESE TAxA ARE RARELy fOuNd ALIVE. ONLy THREE LIVINg SPEcImENS bELONgINg TO
Conopleura striata
HINdS, 1844
ARE kNOwN SO fAR (TIPPETT & TuckER 1995; BOucHET
et al.
2011; PuILLANdRE
et al.
2011; PRESENT PAPER).