CLAUSILIA. 305 



and another Garnieria has two species in Burma, one in China 

 and one in Cambodia. The remainder of the Indian Clausilias 

 belong to three sections, Pseudonenia having twelve species, Euphce- 

 dusa claiming nine, and Cylindroplicedusa with two. Boettger 

 established a subsection Acroplicvdusa, for the reception of 

 C. monticola and C. aralcana, but without having seen specimens 

 for investigation. As this subsection appears to me of doubtful 

 value I have included the species in Euplicedusa. 



Subgenus PHJEDUSA, //. $ A. Adams. 



Phadusa, Adams, Gen. Rec. Moll, ii, 1855, p. 184 (first species 

 Clausilia cochinchinensis, Pfeiffer) ; von Martens, Die fleliceen, 

 ed. 2, 1860, p. 274 (type C. corticina v. d. Busch) ; Boettger, 

 Palseontographica, 3rd suppl. 1877, p, 54; Pfeifter & Clessin, 

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



" Shell smooth, more or less solid, yellowish or rufo-corneous ; 

 lunule none or, very rarely, obsolete ; spiral lamella usually dis- 

 joined ; last whorl appressed, rounded at the base ; peristome 

 continuous, free." (Adams.) 



Section EUPH^DUSA, Boettger. 



Euphaedusa, Boettger, Palseontographica, 3rd suppl. 1877, p. 57 ; 

 ibid., Ber. Offenbucher Ver, Naturw. 1878, Mitt. p. 53 (first 

 species C. bacillum) ; Pfeiffer & Clessin, Nomencl. Elelic. Viv. 

 1881, p. 390. 



TYPE, Clausilia bacillum, Hanley & Theobald. 



Range. India, Burma, China, Japan, Malay Archipelago. 



Clausilium very wide, frequently subquadrate, somewhat dilated 

 below, strongly curved backwards below, acuminate towards the 

 middle. Upper parietal plica long, below it a smaller one united 

 with the rudimentary, interrupted, or small lunella (rarely absent) 

 which at its lower extremity sends off posteriorly a small branch. 

 The upper parietal fold is marginal and nearly vertical, deeply 

 entering ; the lower parietal fold approaching the upper, more or 

 less spirally twisted ; the subcolumellar more or less immersed. 

 Aperture subvertical, usually pyriform, with strongly thickened 

 margins. The small shell has convex whorls, a deep suture, is 

 usually thin, shining, and corneous, smooth or finely striated, 

 rarely finely ribbed. 



270. Clausilia bacillum, Hanley $ Theobald. 



Clausilia ignota, Theobald, J. A. S. B. xxvii, 1858, p. 321 



(nom. nud.). 

 Clausilia bacillum (Benson), Hanley & Theobald, Conch. Ind. 



1870, pi. 24, fig. 1 (non Theobald) ; Sowerby, Conch. Icon, xx, 



X 



