﻿CLAUSILIA.— Plate IV 



obltqms, altis, medio et infra ventiicosis ; suturd 

 profunda, incisd; ultimo anfraciu limato, antice 

 tumido ; aperturd stibr/uadratd, margine alho ; 

 plied superiori parvd, plica columellaii elevato, fere 

 horizontali. 



The ventricose Clausilia. Shell fusiform, somewhat 

 pyramidal, very finely thread-striated, brown ; 

 whorls thirteen, oblique, elevated, ventricose 

 in the middle and under ; suture deep, incised ; 

 last whorl notched, tumid anteriorly ; aperture 

 rather square, margin white ; upper plait small, 

 columeUar plait raised, nearly horizontal. 



Draparnaud. Con. fluv. Pffr. Mon. ii. p. 4G5. 



Helix perversa, Sturm. 



Clausilia latestriata, Parreyss. 



Hah. Germany. France, &c. 



Species 35. (Mus. Sowerby.) 



Clausilia Philippiana. Cla. tesid brevi, fusco-rubcs- 

 ceRti, solidd, ventricosissimd, anfractibns 5-6, latis, 

 altis, IcBvigatis, ultimo angustato, juxta aperturam 

 lineatim rimato ; aperturd siihauriformi, nargine 

 expanso ; plicis superiori et columellari validis, 

 approximatis. 



Philippi's Clausilia. Shell short, reddish-brown, 

 soUd, very ventricose, whorls five or six, broad, 

 high, smooth ; the last narrow, linearly notched 

 close to the mouth ; aperture rather auriform, 

 margin e.xpanded ; upper and columellar plaits 

 strong, approximate. 



Pfeiffer. Monog. ii. 



Hab. Birma. 



A peculiarly obese shell of few whorls. 



Species 36. (Mus. Sowerby.) 



Clausilia lineolata. Cla. testa fiisiformi, elongatd, 

 angustd, corneo-fuscd, liris albis tenuibus, crebris 

 sculptd ; anfractibus 13, convexis, ultimo angus- 

 tato, ad dorsum medio com.jwesso, infrd tumido ; 

 aperturd oblongd, margine externa tenui, supra 

 medium sinuatim subcontracto, p)lic.d supeiiori 

 hrevissimo, plica columellari, elevato, subinterno. 



The linear Clausilia. Shell fusiform, elongated, 

 narrow, horn-brown, sculptured with white, thin, 



close ridges ; whorls thirteen ; convex, the last 

 narrow, compressed in the middle at the back, 

 tumid below ; aperture oblong, outer margin thin, 

 sinuously contracted above the middle ; upper 

 plait very short, columellar plait elevated rather 

 internal. 



Held ? Pfeiffer Monog. iv. p. 778, 



Hab. Germany. France, itc. 



Species 37. (Mus. Sowerby.) 



Clausilia Olivieri. Cla. testa carulescenti, strigis un- 

 digtie cornels variegatd, valide inteqttaliter liratd, 

 elongato-fusiformi ; anfractibus 1 1 , superne decli- 

 vibus ; suturd profunda ; ultimo anfractu angustato, 

 rimato, ad dorsum medio compresso, infrd tumido, 

 valide rugoso ; aperturd fulvd, anguste ovatd, plied 

 stquriori parvd, plied columellari elevatd, intiis 

 angulatd. 



Olivier's Clausilia. Shell bluish, variegated with 

 horny stripes and waves, strongly unequally ridged, 

 elongated, fusiform ; whorls eleven, sloped above ; 

 suture deep, last whorl narrow, notched, com- 

 pressed in the middle at the back, tumid below, 

 strongly wrinkled; aperture fulvous, narrowly 

 ovate, upper plait small, columellar plait raised, 

 angular within. 



Roth. ? KUster, p. 233. Pfeiffer Mon. ii. 



Hab. Rhode Island. 



Species 38. (Mus. Sowerby.) 



Clausilia lunularis. Cla. testa griseofuscd, tennis- 

 sime striata, suhventricosd ; anfractibtis 8, mediums 

 inflatis, ultimo ad dorsum medio contracto ; aper- 

 turd subauriformi, margine temti, expanso, reflexo ; 

 plicis superiori et columellari parvis, approximatis. 



The lunular Clausilia. Shell grey-brown, very 

 finely striated, rather ventricose ; whorls eight, the 

 middle ones inflated, the last contracted in the 

 middle at the back, aperture rather auriform, 

 margin thin, expanded, reflected ; upper plait and 

 columellar plait small, approximate. 



Pfeiffer. Monograph Hcliceorum, iii. p. C08. 



Hab. Eubda. 



