64 Contributions to Indian Malacology, [No. 1, 



Some of the specimens of this species collected by me shew an al- 

 most complete passage into A . dactylus Pfeiffer, as described and figur- 

 ed in Novitates Conchologicce I, 15, pi. V. fig. 15. 16. This species 

 is stated by Mr. Theobald to be found at Mergui (J. A. S. B. 

 for 1857, xxvi. 253.) 

 No. 25, Auricula nitidula, n. sp. PI. II. fig. 5, 6. 



Testa non rimata, subfusiformi oblonga, solida, nitidula, sub epider- 

 mide olivaced alba, lineis impressis confertis verticalibus minutissime 

 rugata, aliis spiralibus granulato-decussata, sculpturd infra suturam 

 magis impressd. Spira conoidea, apice eroso, sutura impressa. Anfr. 

 5 convexi, ultimus vix descendens, § longitudinis subcequans, basi ro- 

 tundatus. Apertura verticalis, plica; parietales 2, supera parva, profun- 

 da, alia obliqua, plica columellaris baud valida, diagonalis : perist. 

 crassum, marginibus callo tenui junctis, dextro superne vix sinuato, in- 

 tus callo elevato incrassato. 



Long. 28, diam. 12J mill. Apertura c. perist. 19 mill, longa, intus 

 5 lata. 



Shell not rimate, subfusiformly oblong, solid, smooth, having a 

 greasy lustre, white, epidermis olive, covered with minute granula- 

 tions produced by the intersection of vertical and spiral impressed lines, 

 both very close and the former sinuous, the sculpture being most 

 strongly marked below the suture. Spire conoidal, apex eroded, suture 

 impressed. Whorls 5 convex, the last nearly § of the whole length, 

 scarcely descending, rounded at the base. Aperture vertical with 2 

 parietal plica?, the upper one small, far inside ; the lower strong, 

 oblique ; columellar plica moderate in size, diagonal ; the peristome 

 thick, the margins united by a thin callus which is somewhat ex- | 

 panded upon the penultimate whorl, the right margin scarcely sinu- 

 ate above, and thickened inside. 



This species which is found very rarely with the last, exactly re- 

 sembles it in general form, but has rounded whorls and finer sculpture, 

 besides being of much smaller size. The animal is white, while that 

 of A. Judce is mottled. A. nitidula somewhat resembles A. Chinensis ; 

 Pfr. which, however, is much less attenuate below, and differs in the 

 form of the aperture, &c. 



But two or three specimens of this form were met with. In Mr. 

 Theobald's lists of Burmese shells ; A. glans, Bens, is mentioned. I can 



