DIAl'H ANA. 



pL 19, f. 13, 14. Diaphu,,.i r.iwllda BROWN, Conch. Text Book, 

 p. 98, pi. 14, f. 30. 



This species has generally been known by the preoccupied name 

 />'. hiintinii Ttirton, which is, besides, later than the names given by 

 Brown. 



D. EXPAN8A Jeffreys. PI. 26, fig. 69. 



Shell very thin, hyaline, irregularly ovate, quite ventricose, the 

 width nearly equal to the alt. ; base obliquely expanded ; vertex nar- 

 row, truncate, spirally involute ; whorls 3-4, the penultimate 

 slightly projecting. Aperture narrow above and removed from the 

 vertex, very much expanded below ; outer lip narrowly rounded at- 

 tire superior angle, then slightly inflexed, beneath obliquely arcuate ; 

 columella nearly straight ; umbilicus narrow but distinct. 



Alt. 6 mill. 



Shetland Is. ; Norway ; J>y of l>isc<iy ; Palermo. 



Amphitphyra expanta JEFFB.., Rep. Brit. Asso. 1864, p. 330. 

 MONTS., Journ. de Conch. 1874, p. 280. Utricuhis expan*u JKFFR., 

 Brit. Conch, iv, p. 426 ; v, pi. 94, f. 6 j'Ann. Mag. N. H. (6), vi, p. 

 -? llulln fjlobosa CANTRAIM:, Mai. Med. et Lit. p. 82, (ex. 

 Mt'-m. Acad. Roy. Bruxelles, xiii). Diaphana exponsa SARS, Moll. 

 Reg. Arct. Norv., p. 289, pi. 18, f. 2a (shell), 2b (animal) and pl.xi, 

 f. 11 (dentition). 



Shell more inflated, less angular in the middle than D. mixnfn, 

 with a larger umbilicus. The animal lacks eyes, and the foot is nar- 



ainl longer than in D. f/lobo*i. 

 D. QUADRATA Monterosato. Utijigured. 



Small, wider than high, very fragile, transparent and without 

 any sort of sculpture; spire truncated, composed of 3 convex 

 whorls, angular at the lower part, and separated by an excavated 

 suture. Aperture nearly squared, the outer margin detached at 

 th? insertion as in the genus Akera; columella perpendicular, um- 

 bilicus profound. 



Off Cape St. Vito, and Palermo, Sirily, in deep wnt.r. 



Amphitphyra ijtimlrata M<vr-., Journ. <K- dmchyl., 1874, p. 



D. VENTRICOSA Jeffreys. PI. 59, figs. 29, 30, 31, 



Shell globosely ear-shaped (not like a I'ehititia), nearly trans- 

 parent, glossy and slightly prismatic: sculpture, numerous fine, 



