262 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
lip thin, simple; anal suleus wide, shallow. Lon. of shell, 17; of aperture, 9; 
max. diam. 5 mm. 
U. S. S. “Albatross,” station 3391, in the Gulf of Panama, in 153 fathoms, 
mud, bottom temperature 559.8 F. U. 8. N. Mus. 123,086. Also at station 
3017, off Cape Lobos, Gulf of California, west coast of Mexico, in 58 fathoms, 
mud, bottom temperature 61%, 8 F. U.S. N. Mus. 110,600. 
This species has very much the look of a small Fusinus of the typical group. 
Turris (Surcula) dolenta Darr, n. sp. 
Shell elongate, acutely fusiform, white, with nine rather rounded whorls follow- 
ing the (lost) nucleus; general aspect recalling the preceding species but larger, 
with a proportionately more swollen body whorl ; fifth whorl with nine, ninth with 
nine short protractive axial ribs confined to the shoulder and periphery; the 
whorls are covered with spiral threads of which two marginating the suture and 
two on the periphery are more conspicuous than the rest, but not perceptibly 
nodulous ; between the peripheral cords there are, on the later whorls, from two 
to four minor threads; on the base of the last whorl there are six or seven 
major, as many intermediate, and about a dozen minor threads ; the suture is very 
closely appressed and the anal fasciole nearly free from axial and with only very 
fine spiral threads ; anal sulcus wide and deep beginning at the suture ; outer lip 
thin, much produced, roundly arcuate to the somewhat constricted base of the 
whorl; aperture, including the canal, as long as the spire ; pillar smooth, white, 
not callous; obliquely attenuated in front, the canal ample; flaring a little in 
front; axis impervious ; the back of the canal closely spirally threaded; length of 
shell, 36.5; of aperture, 19.25 ; max. diam. of last whorl, 13.0 mm. 
U. S. S. “ Albatross,” station 2804, in Panama Bay, in 47 fathoms, mud; 
U.S. N. Mus. 96,645 (type) and station 3389, Gulf of Panama, in 200 fathoms, 
mud, bottom temperature 489.8 F. 
With extremely similar sculpture this differs from 7. fusinella in size and in 
the proportions of the whorls, which are also of a dull white surface, while 7. 
Jusinella is polished and shows indications of a color band which in some speci- 
mens may be well marked. 
Turris (Surcula) armilda Darr, n. sp. 
Shell small, delicate, fleshy white, obseurely banded with brown, a pale belt on 
the last whorl just in front of the periphery ; whorls eight excluding the (lost) 
nucleus; spire acute, slightly shorter than the aperture including the canal; 
whorls with a conspicuous shoulder, above which a slightly concave spirally stri- 
ate anal fasciole extends to the appressed suture, which on the last whorl or two 
shows indications of a marginal thickening; axial sculpture of (on the last whorl, 
about fifteen) protractive short riblets with subequal or slightly shorter interspaces 
