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I NF0Ri'1ATIONS DE L.A. SOCIETE BELGE Di: Mf\U\COLOGIE . SER.12. N° 2-3, JUILLET 1964 : '127-130

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54403

POIRIERIA(PAZif\!OTUSl PHILCLOVERI, A NEW

SPECIES FROM THE PHILIPPINE

( GASTROPODA : MURICIDAE MUR I CINAE)

INTRODUCTION

by

ROLAND HOUART

Scientific Collaborator at the Inst i tut Royal des Sciences Naturelles de Belgique, Brussels

ISL ANDS

Four recent e.pecies of this subgenus are K.nown . The Type-species : Pa.û .. n.otuo .olimp,ôan.,U [DaJL 1889) occurs in the Western Atlantic; the type locality of

Pa.z .. [n.o:tt.to advei11L6 Poorman, 1980, a recently dsscribed species, is from Sono ra,

Mex.ico; Pa;ûn.otuo .omi.th.i.. (Schepman, 1911) was found at Siboga station 105 in

the Eastern Sulu Archipelago; Pa.zJJw.tu.6 üa.tc.aü.fioJrJn-i...b (Thiele, 1925) is an

Indian Ocean species.

The fifth spfJCies here described : Pa.û..n.o-tu.o plUJ!.c.toveA.L. is a rr>markable sma11

sh?ll which was brought recently ta my attention and which differs considerably

from the two "Inde-Pacifie» species.

ABSTRACT

Poi.JueJtJ.a { Paû .. notu.o) ph.Lecf..ove..tu is dsscribed and campa red te.Jith two more or

less related species : P. (P.) .6rrJ.;tfU.. (Scheprnan, 191·1) and P. (P.) t}aic.ctti6oJtm.i6

(Thiele, 19 25), the types of which are hers illustrated ta show the three Recent

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Inde-Pacifie species of this subgenus.

RESUME

Une nouvelle espèce de Muri.cidae : PoJJli_eJLia. ( PazJ...no.tu.b} phü..dove.JU.. est décrite

et illustrée. Deux espèces apparentées : P. {P.) .6mLtJu (Scheprnan , 1911) et

P, iP.) 6a.f.c.a;ti..SoJvn..L6 (Thiele , 1925) sont comparées et les types illustrés.

FAMILY : MURICIDAE

SUBFAMILY : MURICINAE

GENUS : POIRIERIA Jousseaume, 1880

SUBGENUS : PAZlf.JOTUS Vokes, 1970

Type species by 0.0. : Eu.p.te..WUt .6-tfup.&OI"vL[ Dall, 1889

POIRIER.IA (PAZINOTUS) PHILCLOVER.I sp.n.

DESCRIPTION

Shell mediurn.:.sized for the subgenus, of a light brown color with darker brown

blotches on the shoulder and a darker brown band covering the lower part of the

body whorl and the siphonal canal.

Aperture small and ovate , white. Columellar lip adherent, showing 3 to:4 small

denticles on its anterior part and a shallow one posteriorly. Inner side of

outer lip bearing 6 sharp teeth, the second tooth larger.

Anal notch well delimitate and fairly large.

Spire high and acute consisting of a conical protoconch with two glossy nuclear

whorls. Five angulate postnuclear whorls. Suture impressed.

Body whorl with five to six sharp, fimbriate varices with a slightly longer

shoulder spins. Varical interspace with axial sculpture consisting of numerous

growth lamellee which cross the spiral striae, giving an imbricate appareance

to the shell sculpture. A very weak axial rib present between penultimate and

apertural varJx.

Soiral sculpture consisting of 4 threads on the upper part of the body whorl

and 6 to 7 cards on the darker coloured part. Small spiral striae covering the

entire shell surface.

Siphonal canal moderately long. open. backward recurved. Preceding canals very

apparent.

TYPE MATERIAL

Holotype lenght

width

13,6 mm

7,5 mm

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Muséum National d'Histoire Naturelle, Paris, type collection.

Para type lenght 13,1 mm

width 7 mm

R. Houart collection.

TYPE LOCALITY

Philippine Islands, off Samal Is., Davao, Mindanao, 60 m; in tangle nets.

ETYMOLOGY

Named for the well-known Conchologist, Phillip W. Claver (California, USA) who

let me examine these specimens originally.

DISCUSSION

This species may be compared with P. (P.) nalc.a,t<.6oJtm..t..b CThiele .• 1925) and P. (P.)

.6m-UIU. ( Schepman. 1911).

The differences are seen in the ornementation of the varices and the body sculpture ,

P. 6alc.a.ti6oftln,{,o has a srnooth surface and 5 varices ornementated with a very long

open shoulder spins. The shell is larger; the aperture has a different shape with

a smooth columellar lip; the inner side of the outer lip bears 4 equal shallow

nades; while that of P. ph.U.ûovvu shows 6 small and sharp denticles with a larger

second one. Columellar lip of P. phiteioveni bears 3 to 4 small denticles on its

anterior side.

P • .6mUIU. has almost the same aperture as P. 6alca.:U6oJt.mlA with a smooth columellar

lip and 4 obsolete nades at the outer lip. Moreover, P • .6mUIU. has a shell with

no scabrous surface and it shows different varices, with short upward recurved open

spines. It has a different protoconch than the new species [this will be illus­

trated in a future artice).

CONSULTED BIBLIOGRAPHY

Fair. R.H .• 1976. The Mwr.ex Boo!~ : an illustrated catalogue of the recent f1urici­

dae (Muricinae, Muricopsinae, Ocenebrinae), pp.1-13B, pls. 1-23. Honolulu.

Kaicher, S.D., 1873-80. Card catalogue of world-wide shells. Muricidae I-V.

St. Petersburg.

-· 130 ..

Radv.Jin, G.E., & A. 0'/\ttilio, 1976. MuJte.x. shelJ.s of the WorJ.d. An :i.llustrated Guide

to the Muricidae, pp. 1-284, pls. 1-32, Stanford, California.

Schepman. M. M., 1811 . The Prosobranchia of the Siboga Expedition. Pt.4. Rachiglossa.

Livr. 58, pp. 338-352 , pl. XXI . Leiden .

Thiele, J •• 1925. Gastropoda der Oeutschen Tiefsee-Expedition . II. Teil. wissen­

schaftenliche Ergebnisse der Deutschen Tiefsee-Expedition aus dem dampfer

Valdivia 1888-11399, "17(2) : 35·-182, pls. 13-46 .

VolŒs, E.H. , 1971 . Catalogue of the genus iAWte.x. linné (~1ollusca ; Gastropode)

Muricinae. Ocenebrinae. Bull. Amer. Palaeont. 61(265) : 1-141.

ACKNOWLEDGMENTS

I am particularly thankful to Phillip ~<J. Claver (California. USA) who provided

these specimens for study; to Or. R. Kilias (Berlin Museum) who provided me the

type of P. 6alc.a.t16atrm.{}.; and tc Dr . H.E . Coomans and Dr. R.G . Molenbeek (Zoolo­

gisch Museum, Amsterdam) for the loan of P. ~mithi. Without them no valuable

comparison could have be done. Thanks also to Mrs. M.L. Buyle (Brussels), for

the development of some of my photographe.

I am also very grateful to Dr . Emily H. Vokes (Tulane University) for her comments

on tQe manuscript.

# ~--------------------------------------------------------------------------~

1-1A. Po vue/Ua ( PaûvwtLU.) pWctovru R. Houart, sp. nov. holotype. 13,6 x 7,5 mm.

2-2A. Po vue/Ua ( Paûn.otLU.) philûove/U R. Houart, sp. nov. para type. 13,1 x 7 mm.

3. Protoconch of Povue/Ua (Paz~n.otLU.) philctove/U (holotype : X40).

4-AA. Po vue/Ua ( PazùwtLU.) t)aic.ati6oJLtn-W (Thiele, 1925) holotype Berlin Mus. 18 mm.

5-5A. Po vue/Ua ( Pa.zùwtLU.) ~mithi (Schepman, 1911) holotype n° 3.11.087, Zool. Mus. Amsterdam. 15 x 9 mm.