new Crastropoda from the Persian Gulf, de. 319 
The peculiar beauty well merits for it the specific name 
proposed, of one of the three Graces. 
Cythara elegantissima, sp.n. (PI. XXIII. fig. 13.) 
O. testa pergracili, fusiformi, albida; anfractibus 6, quorum 24 
apicales obtusi, plani, minute sculpti, ceteris supra medium 
tenuiter angulosis, dein rectis, undique longitudinaliter rudiliratis, 
liris inconspicuis, spiraliter liris crassioribus succinctis (in 
ultimo circa 14); apertura anguste oblonga, intus alba, labro 
sinu lato, haud profundo, incrassato ; columella fere recta, basi 
prolongata. 
Long. 8, lat. 2°50 mm. 
Hab. Gulf of Oman, lat. 24° 58’ N., long. 56° 54’ E., 
156 fathoms. Also lat. 25° 30’ N., long. 57° 30’ K., 88 
fathoms, mud. 
A very elegant form, as implied by the specific name, with 
markedly obtuse apex, probably not quite full-grown. ‘The 
coarse longitudinal lie, crossed by more distinct but equally 
rough spirals, are characteristic. Very rare. Since descrip- 
tion, another example has been procured, with perfect thickened 
lip, sinus broad and shallow. 
Cancellaria (Trigonostoma) luscinia *, sp. n. 
(Pl. XXII. figs. 14, 15.) 
C. testa parva, attenuato-fusiformi, tenui, albida, vel pallide olivaceo- 
straminea ; anfractibus septem, quorum tres apicales tumidi, 
yitrei, perleves, ceteris longitudinaliter irregulariter sed arcte 
costatis, ad suturas excavatis, costis crassiusculis, undique trans- 
versim tenuiliratis, liris tenuibus superficiem totam circumambi- 
entibus ; apertura oblongo-ovata, margine columellari triplicato. 
Long. 11, lat. 4 mm. (sp. maj.). 
Hab. Avabian Sea, lat. 18° 58’ N., long. 71° 45’ E 
40 fathoms. 
This is the little species alluded to by us in our former 
paper as having been dredged near Bombay, as above, in 
April 1901. It is allied to C. macrospira, Ad. & Rve., but 
much smaller in every detail. The shell is attenuately 
spindle-shaped, thin, either translucent white or pale straw- 
olive, seven-whorled, the three uppermost whorls being glassy, 
globular, and swollen, the remaining three or four closely but 
uregularly ribbed, somewhat excavate, as are nearly all the 
section T’rigonostoma of Cancellaria, suturally. The trans- 
verse luz surmount the ribs and are not interrupted. The 
columella is thrice-plaited. 
9 
* Luscina, a nightingale. 
