AURICULIDJE. 103 



straight ; right margin almost imperceptibly sinuate at its upper 

 part, thickened within behind ; colnmellar margin dilated, flat, 

 adnate. Length 20, greatest breadth 9 mill. 



Auricula Gangetica, Bens. 31SS. 



Pfr. in Malak. Bl. 1855, p. 7 ; Novit. Conch, i. p. 46. n. 80. 

 t. 12. f. 13, 14 ; Mon. Auric, p. 135. 

 Ellobium Gangeticum, H. and A. Adams, Gen.rec. Mott.ii.ji. 237. 

 Hub. Hooghly River, near Calcutta. 



16. AURICULA PALLIDA. 



Shell elongately ovate, slightly striated, pale; whorls six-, 

 flat, narrow ; aperture oblong ; peristome slightly lipped ; colu- 

 mella furnished with two plaits. Length nearly 8, breadth 

 3f lines (Kiist). 



Auricula pallida, Sowerbu in Beech. Voy. p. 146. pi. 38. f. 27. 

 Kiist. Auric, p. 51. t. 7. f. 8 (from Beck). 

 Pfr. Syn. Auric, n. 137 ; Mon. Auric, p. 135. 

 Auricula pvgmsea, (" Gray in Beech. Voy. 38. 27.") Beck, Ind. 



p. 103. h. 6. 

 Ellobium pallidum, H. and A. Adams in Proc. Zool. Soc. 1854, 



p. 7 ; Gen. rec. Moll. ii. p. 237. 



Hub. Columbia (Beck). 



A doubtful species, imperfectly described and figured. 



17. Auricula tornatelliformis. 



Shell imperforate, fusiformly ovate, rather thin, slightly 

 wrinkled longitudinally, minutely granulated by spiral stria:, 

 scarcely shining, translucent, white, covered partly with a ful- 

 vous periostraca ; spire regularly conic, with the apex pointed ; 

 suture linear; whorls eight, scarcely convex, the last forming 

 three-fifths of the total length, indistinctly angled above, at- 

 tenuated at base ; aperture nearly perpendicular, oblong semi- 

 ovate, shining white wi thin, bearing two plaits, one on the colu- 

 mella, twisted, nearly perpendicular, the other approximated to 

 it, stronger, oblique on the body of the penultimate whorl ; pe- 

 ristome slightly thickened ; ri«ht margin sinuate above. Length 

 24, breadth 10i mill. 



Auricula tomatelliformis, Petit in Proc. Zool. Soc. 1842, p. 20 1 ; 



Journ. Conch, iv. 1853, p. 412. pi. 12. f. 5, 6. 

 Pfr. Syn. Auric, n. 138 ; Mon. Auric, p. 136. 

 Ellobium tornateilifomie, H. and A. Adams in Proc. Zool. Stir. 



1854, p. 7 ; Gen. rec. Moll. p. 238. 

 Hub. Tornhay, Isle of Negros, Philippines (H. Cuming). 



