DALL: MOLLUSCA and BRACHIOrODA. 291 



DAPUNELLA Hinds. 

 Daphnella (Bubela) imparella Dall, n. sp. 



Plate 2, figure 2. 



Shell small, translucent white, smooth, polished, very thin, with a three-whorled 

 yellow nucleus of the " Sinusigera " type, ending abruptly ; the form of the shell 

 fusoid, whorls gently rounded, with about four whorls following the nucleus, 

 marked only with lines of growth, obscure spiral markings, and on the canal a 

 few obsolete spiral threads ; suture distinct, not marginate ; aperture lunate ; anal 

 sulcus very wide and shallow, outer lip thin, arcuately protractive ; body smooth ; 

 pillar straigiit, obliquely truncate in front, hardly callous ; canal wide, shallow, 

 not recurved. Lon. of shell, 12.7 ; of last whorl, 9.0 ; of aperture, 7.0 ; max. 

 diam. 5.5 mm. 



U. S. S. " Albatross," station 3392, Gulf of Panama, on hard bottom, in 1270 

 fathoms, bottom temperature 30°. i F. U. S. N. Mus. 123,114. 



The species wants the sutural margination and beading of Eubela limacina 

 Dall, of the Atlantic, and its proportions are different, but in other respects it is 

 rather similar. This group has no operculum. 



Daphnella (Surculina) blanda Dall, n. sp. 



Plate 3, figure 1. 



Shell elongate fusiform, thin, slender, of a pale buff color, eroded nucleus, and 

 about six subsequent whorls; suture distinct, slightly appressed, whorl in front 

 of it minutely arcuately axially wrinkled ; nucleus and the following whorl and a 

 half eroded, the next two or three whorls faintly axially ribbed with (on the third 

 whorl about fifteen) low, rounded, narrow, subcqual protractive riblets which on the 

 following whorls weaken and disappear ; the intervals are wider than the ribs, 

 shallow, and crossed by (between the sutures 8-9) low, regular, equal, rounded 

 spiral threads, equally distributed and not nodulous, but weaker or absent be- 

 tween the suture and shoulder where the ribs originate. On the last whorl the 

 spiral sculpture is much the same except that the threads are flattened and strap- 

 like and the interspaces more or less channelled and near the canal wider ; outer 

 lip arcuate, slightly excavated near the suture, protractive below, moderately con- 

 Mrictcd (m the canal, thin, simple ; pillar straight, rapidly attenuated forward, the 

 edge gyrate and minutely pervious at the axis ; canal long, straight, wide, obliquely 

 truncated. Lon. of shell, 26.5; of last whorl, 20.0; of aperture, 16.5; max. 

 diam. 8.0 mm. 



U. S. S. " Albatross," station 3366, off Cocos Island, Gulf of Tanama, in 1067 

 fathoms, ooze, bottom temperature 37" F. U. S. N. Mus. 123,119. 



