102 BULLETIN OF THE 



visible between the ribs, and two or three spiral series of faint spots on the 

 ribs in front of the yellow on the last whorl, or all whitish ; spiral sculpture of 

 numerous fine impressed lines, strongest on the ribs of which they faintly crenu- 

 late the crests, and well marked on the canal where the interspaces are slightly 

 raised and rounded ; transv^erse sculpture of (on the last whorl ten) elevated 

 ribs, not continuous from whorl to whorl, extending from suture to canal, thin 

 and slightly curved behind the periphery, a little swollen on the periphery and 

 in front of it again diminishing; suture somewhat appressed, undulated by the 

 ribs; aperture long, narrow; notch rounded, not deep ; varix behind the outer 

 lip resembling a stronger rib; outer lip strongly arched forward, thin; canal 

 long, rather narrow ; inner lip simple ; columella straight, obliquely trimmed off 

 in front ; whorls moderately rounded under the ribs. Max. Ion. of shell, 12.5 ; 

 of last whorl, 9.0 ; max. lat. of shell, 4.5 mm. 



Habitat. Gulf of Mexico, at Station 20, in 220 fms. ; Barbados, 100 fnis. ; 

 Station 259, near Grenada, in 159 fms., bottom temperature 53°. 5 F. 



This elegant species recalls the smooth C. fimiculata of Reeve, from the 

 Philippines. Like the other species spoken of, when absolutely adult the lips 

 of the aperture are probably finely crenulated, but none of the specimens re- 

 ceived show this stage of growth. 



Subgenus DAPHNELLA Hinds. 



Section Daphnella s. s. Shell generally brightly colored, cancellated, or re- 

 ticulated ; the outer lip slightly thickened internally in the adult. Type, Pleu- 

 rotoma lymmeiformis Kiener. West Indies. 



These forms are, in the main, shallow-water species. I have been unable to 

 find a specimen of the type with the larval shell intact. Most of the other 

 species have the Sinusigera nucleus, but some have a glassy one. The sinus 

 may be shallow or deep. 



Section Eubela Dall. Shell smooth, glossy, with a sutural band, the outer 

 lip sharp, a shallow anal sinus, and a short angular canal recalling that of 

 Trichotropis. Type, Daphnella limacina Dall. 



These forms are few, and the type is a deep-water mollusk widely distributed. 



Section DAPHNELLA s. s. 

 Daphnella leucophlegma Dall. 



Plate IX. Fig. 9. 

 Pleurotoma {Daphnellal) leucophlegma Dall, Bull. M. C. Z., IX. p. 70, 1881. 



Habitat. Station 2, 805 fms. 



This species is the only one of the typical Daphnellas which is white. Its 

 nucleus is small and glassy. The shell has a resemblance to some varieties of 

 Dolophanes Gabhii, but has a different nucleus and canal, while there is no trace 

 of a si phonal fasciole. 



