262 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
lip thin, simple; anal sulcus wide, shallow. Lon. of shell, 17; of aperture, 9; 
max. diam. 5 mm. 
U.S. 8. “Albatross,” station 3391, in the Gulf of Panama, in 153 fathoms, 
mud, bottom temperature 55°.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 Datt, 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. 8. 8. * 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 48°.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. 
fusinella is polished and shows indications of a color band which in some speci- 
mens may be well marked. 
Turris (Surcula) armilda Dat1, n. sp. 
Shell small, delicate, fleshy white, obscurely 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 
