OTINA. 321 



Una, and in the family of Velutinida. The position thus 

 assigned to it is sufficient to show that the distinguished 

 enumerator had no knowledge of its true affinities or of 

 the character of its animal, consequently we can regard 

 the generic rank assumed by it in that list as adopted 

 on a mere guess. 



O. OTIS, Turton. 



Plate XCIX., fig. 2, 3, and (animal) Plate 0. fig. 4. 



Ueiij; Otis, Turton, Conch. Diction, p. 70. 



Velutina otis, Fleming, Brit. Anim. p. 324. — Forbes, Malac. Monens. p. 29, 



animal. — Brit. Marine Conch, p. 153, f. 4. 

 Galericidum ovatum-, Brown, 111. Conch. G. B., p. 23, pi. 1.0, f. 27, 28, mag- 

 nified. 

 „ oils. Brown, 111. Conch. G. B. p. 24. 



Vehitiria ? „ Alder, Cat. Moll. Northum. and Durh. p. 69. 



The figure of this interesting little shell is intermediate 

 between that of Lamellaria perspicua and Lacuna palli- 

 dula ; it reminds one a little of the genus Navicella. It 

 is minute, rather thin (hence a little transparent), and 

 beneath the purplish-brown closely adhering skin, with 

 which it is covered, of an uniform glossy brown ; its 

 surface is almost smooth, being merely wrinkled in a spiral 

 direction with most densely disposed microscopic lines. 

 The spire, examined from the dorsal side, seems only a 

 little globule of one coil, that is placed so laterally (being, 

 too, extremely narrow, scarcely exceeding, on the average, 

 the tenth part of the body in breadth) as almost to 

 be confined to the left side of the shell ; though ab- 

 ruptly prominent, it is scarcely elevated above the level 

 of the outer lip. When resting on its mouth, the shell 

 seems much depressed, yet the surface of the whorls is 

 very convex. The body swells out rather abruptly from 

 the simple suture, it is peculiarly produced (in the adult) 



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