﻿CLAUSILIA.— Pr,ATE I. 



deeenis, usque ad medium et infra gradatiiii 

 crescentibus, ultimo ri/mato ; aperturd suhauriformi, 

 margine erasso, albo, labio interno triplicato. 



The Formosa Clausilia. Shell fusiform, ventricose, 

 solid, fnlvoas or plum-coloured ; whorls eleven, 

 gradually increasing to the middle and below, 

 last notched ; aperture somewhat ear-shaped ; 

 margin thick, white ; inner lip with three plaits. 



H. Adams. Proc. Zool. Soc. 1866, p. 317, t. 33, f. 7. 



Hub. Island of Formosa. 



Species 5. (Mus. Brit.) 

 Clausilia Ph^dus^. Cla. testa altd, snbajUiidricd, 



flavidd, Ixvigatd, ad suturam rubro-lineatd ; an- 



fraetibus ncmenis, gradatim crescentibus, altis, 



obliquis, convexis, ultimo altusimo, longe rimato ; 



aperturd elongato-auriformi, intils nigra margi- 



iiafd, plied parietali mngnd. 

 The Ph^dusa Cladsilia. Shell high, subcylindrical, 



j^ellow, smooth, with a red line at the suture ; 



whorls nine, gradually increased, high, oblique, 



convex, last very high, with a long notch ; 



aperture elongated, ear-shaped, black-edged 



within, parietal plait large. 

 A. Adams. Proc. Zool. 1872. 

 Hab. China. 



Species 6. (Mus. Brit.) 



Clausilia Tayloei. Cla. testa dextrd, albida, pyrami- 

 datd, medio paulo inflatd, rugose liratd ; anfrac- 

 tihus undecenis, medio et supra gradatim atteiiuatis, 

 idtimo altissimo, infra meditim carinato, descen- 

 denti, subattenuato, profundi; rimato, suhlaxato ; 

 aperturd deltoided, magna, vix plicatd, margine 

 utrinque late expanso. 



Taylor's Clausilia. Shell dextral, whitish, pyra- 

 midal, a little swelled in the middle, roughly 

 ridged ; whorls eleven, gradually attenuated 

 from the middle upwards, last very high, keeled 

 below the middle, descending, slightly attenuated, 

 deeply notched, slightly uncoiled ; aperture del- 

 toid, large, scarcely plaited, margin widely ex- 

 panded on each side. 



Pfeiffer. Proc. Zool. Soc. 1861, p. 27, PI. II. 



Eab. ? 



A shell of remarkable beauty and singularity of 

 form. 



Fig. 7. Species 142. (Mus. Brit.) 

 Clausilia IVIacascariensis. I had figured the species 

 on Plate XV. as Clauxilia Macarance, not know- 

 ing that the latter name was only synonymous 

 with the former. The later figures and descrip- 

 tion were taken from a specimen in which the 

 back of the last whorl is more strongly and 

 roughly plaited than usual. In the figure on 

 this Plate we have shown a last whorl with the 

 clausium in situ . 



Species 8. (Mus. r) 



Clausilia exilis. Cla. testa brevi, solidd, fusiformi, 

 pruinosd, medio et infra veniricosd, lata ; anfrac- 

 tibus novenis, Iwvibus, inflatis, ta-nid fulvd ad 

 suturam marginatis, ultimo leviter rimato, infra 

 angustato ; aperturd perpendiculariter oblongd, 

 magna; margine albo, erasso, labio externa supra 

 medium, sinuato, tumido, plica parietali promi- 

 nenti, plica columellari crassd, magna.. 



The narrow Clausilia. Shell short, solid, fusiform, 

 plum-coloured, ventricose in the middle and 

 below, broad; whorls nine, smooth, inflated, 

 bordered with a narrow band at the suture ; 

 last slightly notched, narrowed below ; aperture 

 perpendicularly oblong, large ; margin white, 

 thick, outer lip sinuous above the margin, tumid, 

 parietal plait prominent, columellar plate thick, 

 large. 



Adams. Proc. Zool. Soc. 1866. 



Hab. Isle Formosa. 



Species 9. (Mus. ?) 



Clausilia oblita. Sou-crby. 

 The forgotten Clausilu. 



An error has arisen from the first ])late remaining 

 undescribed long after its publication. The writer 

 having mislaid his memoranda cannot now identify 

 this shell, but names it provisionally as above. 



