288 pupiLLiD.i;. 



In addition, tlie strong and close costulation diiferentiates 

 P.filosa from its nearest allies. 



257. Pupilla brevicostis, Benson. 



Pupa brevicostis, Beosou, A. M. N. II. ser. 2, iv, 1819, p. 127 ; 



Kiister, Conch.-Cab., Piqni, 1852, p. 136, pi. 17, tigs. 20-22 ; 



Pfeiffer, Mon. Helic. Viv. iii, 1853, p. 560. 

 Vertigo {Al<ta) brevicostis, Adams, Gen. Rec. Moll, ii, 1855, p. 172. 

 Pupa ( Vertigo) brevicostis, Pfeitter, Maliik. Bltitt. ii, 1856, p. 177 ; 



Nevill, Hand List, i, 1878, p. 197. 

 Pupa (Pupilla) brevicostis, Pfeiffer & Clessin, Nomencl. Helic. Viv. 



1881, p. 355. 



Original description ; — " T. rimato-perforata, cjlindraceo-ovata, 

 cornea, apice obtuso ; anfrac'cibns 4|, longitudine celeriter 

 crescentibus ; ultimo antice nou ascendente, g longitudinis testse 

 sequante, superioribns eonve.xis, superne remote semicostulatis, 

 idtimo et penultimo subplanulatis, dimidioque inferior! cseterorum 

 sericeis, inutius ; apertura rotundato-ovata, 5-6 plicata ; plica 1 

 angubiri, brevi : secunda parietali, proiundiore, obliqua ; coluniel- 

 lari unica ; palatalibus 2-3 profundis : peristomate expanso, 

 siibreflexo. 



"Long. 1-2 mill., lat. vix 1 mill." (Benson.) 



Hah. India : Barrackpore, Bengal (Bacon). 



"Taken by Dr. J. F. Bacon on the trunk of a tamarind tree at 

 the Cantonment of Barrackpore, near Calcutta, during the rainy 

 season of 1848. Out of several individuals forwarded to me 

 overland, by letter in a quill, two reached me alive, and creeping 

 about wlien supplied \^•ith moisture enabled me to verify their 

 affinities. The lower pair of tentacula is deficient or incon- 

 spicuous, as in Vertigo ; the u])per pair carry the eyes at their 

 summits : the shell is often carried at an angle of 45°."' (Benson.) 



Fig 10-i.— Pupilla brevicostis. \^. 



Nevill (Hand List, i, p. 107) was of opinion that Pupa indica, 

 PEeiifer \ljarraclcporensis, mihi] and the present species were 

 identical. A comparison of specimens does not bear out this 

 view, as Pfeiifer's species is larger arid more cylindrical, the suture 

 is deeper, it lias half a whorl more, and is provided only with 

 four plicae in the apertum. 



The figure given by Kiister is not a very good representation of 

 the shell, and as this is the only one published I have considered 

 it desirable once more to illustrate the species from a specimen in 



