﻿CLAUSILIA.— Plate IX. 



Species 81. (Mus. Brit.) 



Clausilia Dorunii. Cla. testa elongatd, mhfusiformi, 

 corneo-ruhescenli, infra castaned, IcKvujatA ; anfrac- 

 tibus circa 10, apicalibus 4 contractis, brevibus, 

 alteris altksimis, moderate ventricosis; ultimo elon- 

 gato, attenuato, supra aperturam rimato ; aperturd 

 obUqvd, anfice productd, margine crasso, albo, 

 rotiinilii, labio interna biplicato, plicis elongatis ; 

 plica interna iind obliqud conspicud. 



Doriin's Clausilia. Shell elongated, rather fusiform, 

 reddish horn, chestnut below, smooth ; -whorls 

 about ten, the four apical ones contracted, short, 

 the others very high, moderately ventricose ; last 

 elongated, attenuated, notched above the aperture; 

 aperture oblique, produced .anteriorly ; margin 

 thick, white, rounded, inner lip with two plaits, 

 plaits elongated; an inner plait oblique, con- 

 spicuous. 



Pfeiffer. Malak. BL, 18G0, p. 213. 



Ilab. Venezuela. 



Species 82. (Mus. Crosse.) 

 Clausilia Yokohamensis. Cla. testd ventricosd, fusi- 

 formi, crasdiiscnld, fusco-corned, leviter et irregu- 

 lariter striata; anfractihus 9-10, altis, moderate 

 convexis, apicali obtusissimo, ])enultin,o lati^iyno, 

 ultimo elongato, non rimato ; aperturd violaccd, 

 pyriformi-ovatd, prorsum productd; margine late 

 rejlexo, plica svperiori labii interne valida, com- 

 pressd, plied superiori columella7-i oblique, inferion 

 parvd. 

 The Yokohama ClausimAj ^hell ventricose, fusiform, 

 rather thick, horny-'brown, slightly and irregu- 

 larly striated ; whorls' nine to ten, high, moderately 

 convex, apical one very obtuse, penultimate very 

 broad, last elongated, not notched ; aperture 

 violet, pyriform-ovate, produced forwards ; margin 

 broadly reflected ; upper plait of the inner lip 

 strong, compressed; upper columellar plait oblique, 

 lower small. 

 Crosse. Journal de Conchyliologie, 1873, p. 133. 

 Hab. Yokohama, Japan. 



Species 83. (Mus. ? Copied.) 



Clausilia semilamellata. Cla. testd temii, parvd, alba, 

 loevigatd, fusiformi, medio subventricosd ; anfrac- 

 tihus 8-9, infcrioribus altis, moderate eonve.cis, 

 ■ultimo elongato, attenuato, dorso prope aperturam 



lirato, supra aperturam rimato; aperturd oblique 

 productd, ovatd, subsolutd, margine tenui, anguste 

 reflexo, plied supenori, labii interni elongatd, coiu- 

 melld, arcuatd, angustd, plicis 5 parvis, parallelibus 

 cequalibus insti-uctd. 



The half-lamin.'vted Clausilia. Shell thin, small, 

 white, smooth, fusiform, rather ventricose in the 

 middle; whorls eight or nine, lower ones high, 

 moderately convex, last elongated, attenuated, 

 ridged near the aperture on the back, notched 

 above the aperture ; aperture obliquely produced, 

 ovate, rather solid, margin thin, narrowly re- 

 flected, upper plait of the inner lip elongated, 

 columella arched, narrow, set with five small, 

 parallel equal plaits. 



Moussen ? Crosse Journ. Conch. 



Hab. ? 



Species 84. (Mus. ? Copied.) 



Clausilia Sieversi. Cla. testd alhidd, parvd, sub- 

 cyliadraced, attemiatd IcEvigatd, anfractibus 9-10, 

 vijc convexis, ultimo oblique elongato, suprd aper- 

 turam rimato ; aperturd pyriformi, plied superiori 

 labii interni prominenti, columdld angustd, arcttaid, 

 creberrime transverse plicatd. 

 Clausilia Sieversl Shell whitish, small, rather 

 cylindrical, attenuated, smooth, whorls nine or 

 ten, very little convex, the last obliquely elongated, 

 ijotclied above the aperture ; aperture pyriform, 

 upper plait of the inner lip prominent, columella 

 narrow, arched, very closely transversely plaited. 



Pfeiffer ? Crosse Journ. Conch., 1873, p. 214. 



Hab. Lenkoram, Russia. 



The granulations, or plaits on the arched columella, 

 are much more numerous in this than in the pre- 

 ceding species, and the last whorl has no ridges on the 

 back. 



Species 85. (Mus. Brit.) 



Clausilia co.m.mutata. Cla. testd parvd, pallide corned, 

 Icecigatd, fusiformi, anfractibus brevibus, versiis 

 apiceui gradatiui contractis, medio moderate inflatis ; 

 aperturd ovatd, hiplicatd. 



The commuted Clausilia. Shell small, pale horny, 

 smooth, fusiform, whorls short, gradually con- 

 tracted towards the apex, moderately inflated in 

 the middle, aperture ovate, biplicate. 



RossMASLER. Pfeiffer, Monog. Hel. II. p. 401. 



Hab. Spain, Sicily, &c. 



