ATTBICULIDJE. 91 



Sidula felis Catti, Gray in Tart. Man. ed. nov. p. 21. 

 Hhodostonia coffea, Swains. Malac. p. 344. 



Hub. Indian Archipelago ; Manilla {Cuming), 



15. Cassidula angttlifera. 



Shell riniate, eassidiform, rather solid, very indistinctly stri- 

 ated spirally, rather shining, reddish-brown, with two white 

 bands, one of which is narrow, and runs along the suture, the 

 other broader, placed on the angle ; spire short, rather concavely 

 conoidal, slightly pointed; suture impressed; whorls eight, 

 rather flat, the last forming three-fourths of the total length, 

 angled at its upper circumference, attenuated at the base ; basal 

 keel slight, surrounding the umbilical region, which is broad 

 and inflated near the groove; aperture nearly perpendicular, 

 elongate, sinuate, rounded in front; parietal plaits two, the 

 upper almost vertical, the other approximate to the columella, 

 transverse, scarcely descending ; columellar plait twisted, bifid ; 

 peristome thickened and bordered externally, with the margins 

 not united ; right margin bearing within a Insinuate and denti- 

 culated ridge ; columellar margin thick, spreading. Length 31, 

 greatest breadth 21 mill. 



Auricula angulifera, Petit in Revue Zool. 1841, p. 101. 



Reeve, Conch. Si/st. ii. pi. 187. f. 5. 



Kiist. Auric, p. 45. t. 7. f. 1, 2. 



Menke, Moll. Nov. Holl p. 8. n. 16. 



Jay, fatal. 1850, p. 264. n. 6134. 

 Auricula subrepta, Hombr. 8,~ Jacq. Voy. Pole Sud, Zool. v. p. 36. 



pi. 9. f. 13-15. 

 Auricula angidata, Forbes in Voy. Rattlesn. App. p. 362. 

 Cassidula angulifera, March, Cat. Told. p. 37. n. 773. 



H. and A. Adams in Proc. Zool. Soc. 1854, p. 31 ; Gen, rec. 

 Moll. ii. p. 238. 



Pfr. Syn. Auric, n. 122 ; Man. Auric, p. 119. 

 Melampus anguliferus, Chemn. Lee. EUm. p. 244. f. 913. 



Hub. Australia : Raffles Bay, Port Essington. 



16. Cassidula rugata. B.M. 



Shell imperforate, ovate-elliptical, solid, purplish-brown ; 

 spire regularly conic, rather blunt; suture regular; whorls 

 seven, the upper ones moderately convex, wrinkled and striated 

 spirally, the last forming three-fourths of the total length, 

 sculptured with strong decurrent undulated wrinkles, which are 

 interrupted irregularly, covered with a pale grey periostraca, in- 

 distinctly angled above, attenuated at the base ; basal keel slight, 



