MOLLUSCA OF INDIA. 61 



geographical record, which will preseiTe and protect, with the 

 religious feeling for a relic, original labels. He never, I think, 

 comprehended the great area India comprised, and the great and 

 varied physical differences the country' presents. 



Benson's shells were finally purchased by Mr. MacAndrew, and 

 are now, many of them, in the Cambridge Museum, incorporated in 

 the MacAndrew collection, and generally have " from Benson 

 collection " written on the new label, with India, Bengal, or 

 Burmah as habitat : but I regretted to find Benson's original labels, 

 in his unmistakable writing, had been destroyed, and with them 

 had gone all his valuable record of exact locality ; this fault, how- 

 ever, does not rest, I am glad to saj'', on the Cambridge Museum. 

 I can remember seeing many species still gummed on the original 

 cards when in Hanley's charge. The original value of many of the 

 species is lost for ever, and a good many have no locality at all, 

 and several typical shells are no longer there. I found two speci- 

 mens of H. levicula in the collection from Tenasserim, one of which 

 must be the type shell referred to from Phie Than, and I was so far 

 enabled to compare and identify Mr. Limborg's specimens. 



DtJRGELLA LEVICULA, Bcnson. (Plate LXXVI. figs. 1, 1 a, 1 b.) 



Helix" levicula, Benson, A. M. N. H. ser. 3, vol. iii. p. 391 (1859); 

 PfeifFer, Mon. Helic. vol. v. p. 48. 



Durqella levicula, W. T. Blanford, A. M. N. H. ser. 3, vol. xi. 

 p. 81 (1863). 



Macrochlamys levicula, sec. D, Theobald, Suppl. Cat. p. 19 

 (1876). 



Helix levicula. Conch. Ind. p. 37, pi. xc. figs. 1,4 (1870), 



Nanina levicula, NeviU, Hand-list, p. 26 (1878). From Basein, 

 Thyetmyo, and Pegu. 



Durgella levicula, God win- Austen, Proc. Linn. Soc, Zool. vol. xv. 

 p. 291 (1881). 



Durgella levicula, Tryon, Man. Conch, vol. xi. p. Ill, pi, xxxvii. 

 figs. 8, 9 (1886). 



Original description : — " Testa angustissime perforata, globoso- 

 depressa, tenui, oblique striatula, striis spiralibus, obsoletis sab lente 

 vix clecussata, p)olita, subdiaphana, luteo-cornea ; spira convexiuscula, 

 apice vix elevatiusculo, obtuse, sutura impressa, marginata ; anfrac- 

 tibus 3, celeriter accrescentibus, ultimo antice majori, subtus convexo- 

 subconoicleo, peripheria superne subangulato-rotundata ; apertura 

 obliqua, magna, rotundato-quaclrato-lunari,peristomate acuto, superne 

 antrorsum arcuato, mnrgine columellari subverticali, superne breviter 

 rejiexo, umhilicum subtegente, basali leviter arcuato. 



" Diam. major 7, minor 5|, axis 3^ mill. ; apert. 4 longa, 4| mill, 

 lata. 



" Habitat Phie Than, raro occurrens. 



" Described from a single specimen in Mr. Theobald's collection. 

 Were it not for the presence of the perforation, the shell might be 

 easily ascribed to Vitrina. It has close relations with two species, 



