new Gastropoda from the Persian Gulf, &e. 297 
duo apicales hyalini, leves, ceteris multum apud suturas im- 
pressis, spiraliter acute bicarinatis, ultimo quadricarinato, epider- 
mide quasi-costulas longitudinales setulosas arcte preebente; aper- 
tura late ovata, in typico specimine aurantia, in minore alba, 
labro effuso, tenui, columella fere recta. 
Alt. 24, diam. 12 mm. (sp. maj.). 
Hab. Gulf of Oman, on telegraph-cable, lat. 27° 12’ N., 
long. 51° 50’ E., 25 fathoms. 
We have already * described another species of this usually 
Arctic genus from the Gulf of Oman, viz. 7. Townsendi—a 
much smaller form. The present is far handsomer, being 
conspicuous for its graceful, rapidly attenuate whorls, much 
impressed suturally, the upper whorls twice, the lowest four 
times carinate. ‘I'wo examples so far only obtained, the 
perfect larger example orange-mouthed, the smaller white. A 
third species, as yet undescribed, has lately been found to 
occur in small quantity in the dredging at 156 fathoms in the 
Gulf of Oman. 
Solarium (Torinia) cerdaleum {, sp. n. 
(Pl. XX. fig. 16.) 
S. testa anguste umbilicata, solida, pulchre sculpturata, depresso- 
conica, fusco-straminea; anfractibus 5, quorum 1% apicales 
pallide rufi, nitidissimi, hyalini, ceteris quatuor ordinibus gem- 
marum spiralium, interstitiis minute unistriatis, preeditis, quorum 
inferi regulariter hic illic brunneo-maculati, in penultimo et 
ultimo anfractu ordine summo, juxta suturas, magno, gemmulato, 
ultimo ad peripheriam tribus carinis conspicuis brunneo-maculatis, 
simul ac infra, apud basim, septem ordinibus spiralibus deco- 
rato, duo circa umbilicum gemmulas maximas crenelliferas pre- 
bentes, interstitiis spiraliter unistriatis; apertura obscure quadrata, 
intus subochracea, nigro-brunneo zonata, labro angulato, tenui, 
marginem ad columellarem nitido, albo, incrassato, spiraliter 
tornato. 
Alt. 5, diam. 8°50 mm. 
Hab. Persian Gulf, Fao, on telegraph-cable, November 
1902. 
Of the same alliance as S. dorswosum, Uinds, cylindraceum, 
Mighels, &c., but differing in the several characters as above 
given. 
Solarium abyssorum, sp.n. (Pl. XXI. fig. 1.) 
S. testa parva, perdepressa, acutissime carinata, profunde umbili- 
cata, tenui, albescente ; anfractibus quatuor, quorum apicales 14 
* Proc. Zool. Soc. 1901, vol. ii. p. 360. 
T xepdddeos, advantageous. 
