MUSEUM OF COMPARATIVE ZOOLOGY. 99 



This may not be an Atys, but the subtruncate axis and general form of the 

 shell are more like that group than any other, and it is so referred until we 

 know the soft parts. 



Atys (?) Sandersoni n. s. 



Shell small, thin, fragile, polished, translucent white, with the aperture longer 

 than the axis of the shell, slender, elongated oval with the posterior fourth 

 bevelled off slightly ; transverse sculpture solely of delicate evanescent lines 

 of growth, sometimes lost in the general polish of the surface ; spiral sculp- 

 ture of about a dozen incised lines near either extremity, more crowded toward 

 the tips and obsolete toward the middle of the shell, reticulating the lines of 

 growth when the latter are present, but delicate, extremely fine, and not punc- 

 ticulate ; posterior apex a rather deep funiculate pit, out of the centre of which 

 rises the margin of the aperture, which is here slightly reflected, extends be- 

 hind the summit of the body and suddenly curves forward, leaving a very 

 narrow aperture, which is produced into a rounded point in front, then 

 sharply recurved and reflected to a point where the reflected part loses itself in 

 the thin callus on the body within the aperture ; the anterior reflection is 

 sometimes closely appressed and sometimes loose with a chink behind it, but 

 there is no anterior pit ; the shell is more slender forward than behind, the 

 bevelling is more marked in some specimens than in others; a fragment from 

 off Havana, if conspecific as seems likely, indicates that it reaches a much 

 larger size than the described specimens. Lon. of shell and aperture, 6.5. 

 Max. lat of shell, 3.4 ; of aperture, 1.75 ; min. lat. of aperture, 0.5 mm. 



Station 2, 805 fms. Off Havana (?j, Sigsbee, in 450 fms., a fragment which, 

 if perfect, would be about 5.5 mm. broad and 11.0 mm. long. 



I have much pleasure in dedicating this species (which is provisionally re- 

 ferred to the genus Atys) to Mr. Sanderson Smith of the U. S. Fish Commis- 

 sion, well known by his researches among the marine mollusks of N. E. 

 America. Its nearest ally seems to be the Bulla caribhcea D'Orbigny, which is 

 much smaller, more globose, and entirely covered with striae. 



Philine sp. 



A fragment of a species resembling P. quadrata Wood, as figured by G. O. 

 Sars (Tab. 18, fig. 9 a), was obtained in Yucatan Strait at a depth of 640 fms. 

 It is of a yellow brown, with strong lines of growth crossed by very numer- 

 ous puncticulate grooves all over the surface. 



Scaphander (?) Watsoni n. s. 



Shell slender, delicate, white or yellowish, polished, posteriorly attenuated, 

 with the outer lip and aperture produced behind the apex ; transverse sculp- 



