87 
moderately open, reflected, and notched. The shell has an inner 
hard enamel-like layer, and an outer of soft, porous, chalky con- 
sistence. This when perfect is nearly smooth, longitudinal and 
transverse markings being scarcely visible. When slightly 
denuded coarse and fine longitudinal lines become evident; when 
more denuded those are less marked and spiral ones are more 
manifest, numerous spiral incisions running along the broad 
liree ; and when the enamel only remains there are four or five 
subraised principal spiral lire, with abundant fine interstitial 
strie, but no longitudinal intervariceal markings. 
Length, 10 mm.; breadth, including varices, 4:25 mm.; length 
of spire, 5; of aperture, 2°5; breadth, 1-5. 
Habitat.—St. Vincent Gulf ; dredged in deep water, three indi- 
viduals (J. C. Verco ). 
Type specimen in my collection. 
From 7’. Goldsteini, Ten.-Woods, it is more slender (7. Gold- 
steini is 11:5 to 6, with the outer covering intact); varices are 
more arcuate and more approximate; whorls less angulate, less 
ventricose. 
Trophon levis, sp. nov. PI. ii., fig. 5, 5a. 
Obliquely ovate-fusiform, thin, sordid-white. Whorls seven. 
Nucleus indistinct, one turn and a half, slightly excentric. Spire 
elevated, acute, shorter than last whorl, as 12:25 to 17-5. Whorls 
nearly flat, sloping, obtusely angulated at lower third, sutures 
indistinct, shoulder with distant tubercles vanishing about middle 
of penultimate whorl, most marked at its commencement. Body- 
whorl subventricose, uniformly rounded, somewhat constricted at 
the base ; nine low, broad, rather rude longitudinal costations at 
irregular distances ; obsolete broad flat spiral elevations, broadest 
and lowest about the periphery, narrower and more valid anter- 
iorly, where also longitudinal incremental strize are most marked; 
suture moderately distinct, irregular, crenulated in places by the 
ends of obsolete incremental lines. Aperture elongately oval, 
contracted posteriorly, opening widely into the canal in front ; 
outer lip simple, thin, with wide shallow crenulations correspond- 
ing with the spiral lire. Columella smooth, arcuate, slightly 
excavated; callus thin, spreading a little over the base, especially 
behind. Umbilicus rimate. Canal short, widely open, sub- 
sinistral, scarcely recurved, hardly notched. There is a complete, 
thin, soft chalky coating which smears and obseures the sculp- 
ture, but is evidently not an adventitious deposit. Three dark 
blackish-purple bands about a line in width visible inside the 
outer lip, in the posterior half of the aperture, the lowest one at 
its middle ; two more, indistinct, at the junction with the canal, 
and two narrow and scarcely visible behind these. They lie be- 
tween the spiral lire. Operculum muricoid. Dentition, pl. iii., 
fig. 3, muricoid. 
