MUSEUM OF COMPARATIVE ZOOLOGY. 103 



Daphnella corbicula n. s. 



Plate XIV Fiff. 7. 



Shell yellowish with pale brown liamniulcs, with a brown Sinusigera nucleus 

 of three whorls, high and slender, and live or more subsequent whorls ; sculp- 

 ture OQ the early whorls of two veiy strong elevated threads, at a later time 

 there are two intercalary, not quite so strong ; on the last whorl there are 

 about ten strong primaries in all, partly on the back of the canal, about live 

 intercalaries on the body of the whorl, and on all the unoccupied area very 

 fine numerous granulous or frosty spiral threads ; on the fasciole there are no 

 other spirals ; transverse sculpture (1) of fine sharp incremental lines, which 

 produce the shagreening of the tertiary spirals ; (2) of numerous elevated 

 rounded threads, which reticulate the stronger spirals, induce little nodes 

 at the intersections, and extend from the front margin of the fasciole for- 

 ward over the whole whorl, disappearing only on the back of the canal ; the 

 interstices are deep, and nearly square ; whorls rounded, shouldered by the 

 strong posterior primary spiral thread ; canal nearly straight, very wide, hardly 

 differentiable from the aperture ; pillar nearly straight with little callus ; outer 

 lip thin, crenulated by the sculpture ; notch at the suture narrow, and about 

 1.0 mm. deep ; suture appressed, not very distinct. Max. Ion. of shell, 11.2; 

 of last whorl, 8.0; max. lat. of shell, 4.7 mm. 



Habitat. Barbados, 100 fms. U. S. Fish Commission Stations 2595 and 

 2596, in 49-63 fms., sand, 20 miles off Cape Hatteras, N. C, bottom tempera- 

 ture 75".0 F. 



The specimen figured is from Hatteras. The bold sculpture of this species 

 is very recognizable, — even a small fragment can be easily identified, — and 

 it is not very much like any of the other described species. 



Daphnella reticulosa n. s. 



Plate X. Fig. 10. 



Shell small, translucent white or yellowish, of porcellanous texture, with a 

 Sinusigera nucleus, followed by five and a half normal whorls ; general shape 

 elegantly fusiform, but with a rather blunt-ended canal ; spiral sculpture of 

 fine even rounded elevated threads, nearly uniform all over the shell, about 

 half as wide as the interspaces in most of which run an extremely fine inter- 

 calary thread ; the primary threads average about eight in the breadth of a 

 millimeter; transverse sculpture, first, of very fine distinct uniform lines of 

 growth about twice as numerous in the same space as the primary spiral threads, 

 which last are beautifully reticulated and to some extent rendered nodulous, or 

 rather minutely wavy, by the intersections ; secondly, on the earlier whorls, of 

 rather stout distant rounded riblets or waves seven or eight to a whorl, most 

 distinct on the first whorl and entirely evanescent on the last two whorls ; 



