DALL: MOLLUSCA AND BRACHIOPODA. 307 



Alectrion (Hima) catallus Dall, n. sp. 



Plate 11, flgure 11. 



Shell short, solid, acute-conic, pale brown, with a tendency to darker bauds, 

 whorls eight and a half, of wiiich three and a half are nuclear, rapidly increasing, 

 sharply reticulately sculptured ; suture very distinct, deep but not channelled ; 

 nucleus as in ihe next species, and the character of the sculpture similar to that 

 species, but closer and finer ; on the last whorl are about twenty axial riblets 

 continuing over the whorl from the suture to the siplioual fasciole ; on the spire 

 between sutures six, and on the last whorl sixteen strap-like spirals ; aperture 

 rounded-quadrate ; outer lip with a strong varix, inside of which about nineteen 

 fine elevated lirae extend into the throat ; body with a thick whitish callus and a 

 low, rather distant subsutural ridge ; pillar short, arcuate, smooth, with one or 

 two elongate pustules near the anterior obliquely truncate edge whicli bears a 

 strong keel ; canal very short, contracted, strongly recurved, with a longitudinally 

 striate siphonal fasciole, behind which, separating it from the base of the whorl, 

 is a deep sulcus. Lon. of shell, 14.0; of last whorl, 9.5 ; of aperture, 6.0 ; max. 

 diam. 8.5 ram. 



U. S. S. "Albatross," station 3355, Gulf of Panama, in 182 fathoms, mud, 

 bottom temperature 54°. 1 ¥. U. S. N. Mus. 123,013. 



A very compact and elegantly sculptured shell of the group to which the J. 

 anibigua Montagu belongs, but, like most of the non-littoral species, of a more 

 earthy and less porcellanous consistency. The nucleus is of about the same 

 character as in the species from moderate depths. 



Alectrion (Hima) miser Dall, n. sp. 



Plate 4. flgure 1. 



Shell of moderate size, pale straw-color, with a smooth polished nucleus having 

 a very minute swollen apex and three and a half rapidly enlarging rounded whorls 

 followed by an abrupt change to tlie adult sculpture, which is borne by about five 

 and a half subsequent whorls ; shell solid, strongly reticidately sculptured ; suture 

 distinct, not channelled ; axial sculpture of (on the last whorl about twenty) 

 narrow rounded ribs, extending completely over the whorl, with slightly Mrider 

 interspaces and fairly distinct lines of growth; spiral sculpture of (between the 

 sutures four and on the last whorl seven) flat, strap-like, elevated bands which 

 override the ribs and are about equally elevated in tlie interspaces as on the 

 summits, where on the earlier whorls at the intersections, the intersections are very 

 slightly swollen ; between the anterior spiral and the siphonal fasciole is a wider 

 sulcus ; aperture subquadrate ; outer lip somewhat varicose, thick, with, in the 

 adult, eight strong spiral lirae, extending into the throat ; body witli a thin layer 

 of callus and a faint subsutural ridge ; pillar very short, conc.ive, smooth, callous, 

 with a strong keel just behind its anterior, obliquely truncate edge ; axis not 



