306 CLAUSILIID^E. 



1875, Clausilia, pi. G, fig. 48 ; Pfeiffer, Mon. Helic. Viv. viii, 



1877, p. 503. 



Clausilia (? Medora) bacillum, Blanford, J. A. S. B. xli, 1872, 



p. 200, pi. 9, fig. 3; Stoliczka, torn. cit. p. 207. 

 Clausilia (Phaedusa) bacillum (Theobald), Nevill, Hand List, i, 



1878, p. 184; Tapparone Canefri, Ann. Mus. Civ. Geneva, ser. 2, 

 vii, 1889, p. 328. 



Clausilia (Phaedusa (EuphaedusaJ) bacillum, Boettger, Ber. Offen- 

 bacher Ver. Naturw. 1878, Mitt. p. 53; Pfeifer & Clessin, 

 Nomencl. Helic. Viv. 1881, p. 390. 



"Testa subrimata, fusiformis, solidula, glabra, vix striatula, 

 nitidula, superficie ssepe in exemplis veteribns erosa, albido-vel 

 cereo-cornea ; spira superne regulariter attenuata ; apice obtuso, 

 papillari ; sutura simplice impressa. Anfr. 9 convexi, ultimus 

 validus striatus, pone aperturam vix compressus ; apertura 

 verticalis, piriformi-oblonga, lamella supera validiori, columellari 

 antice vix conspicua, parum torta, intus subfurcata; lunella 

 distincta, plicis palatalibus 2, suturae parallelibus, supera elongata, 

 altera brevi, a lunella vix disjuncta. Peristoraa continuum, 

 solutura, album, breviter expansum et incrassatum, margine 

 parietali vix sinuato. 



" Long. 15, anfr. penult, diam. 3-5 mm. ; apert. cum peristomate 

 3-33 longa, 2'33 mm. lata." (Blanford.} 



Hab. India : Nanclai, Khasi Hills (Theobald, Godwin- Austen} ; 

 Naga Hills (Chennell) ; Asalu, Cachar (Godwin- Austen)-, Burma: 

 Schegoo (Fea). 



" The species varies considerably both in the form and length 

 of the shell. The specimen figured may be taken as the type, 

 but others longer and slenderer are quite as common, they very 

 closely resemble Theobaldi in form, differing from it by their 

 smooth shining surface. One of the most slender specimens 

 measures : total length 15, thickness 3 mm. ; it has 10| whorls 

 and is much attenuated towards the apex. 



" The representation in the 4 Conch. Indica ' must evidently be 

 taken as that of true bacillum, of which, the authors of that 

 work say, two specimens were known at that time : one in Benson's 

 and the other in Theobald's collection. These are the two 

 specimens to which Theobald (J. A. S. B. 1858, p. 321) refers 

 under the name of ignota, as a provisional name, while the single 

 specimen which he quotes 1. c. as ' C. bacillum, B.' is a somewhat 

 worn Cl. asaluensis, and hence Theobald's reference that the 

 species is of the type of C. insignis. I have carefully examined 

 with Mr. Theobald his type specimens, and the question as regards 

 the synonymy may be considered as settled ; the species must 

 stand as recorded by Blanford." (Stoliczka.) 



