1874.] MR. G. B. SOWERBY ON NEW SPECIES OF SHELLS. 599 



linear chestnut spots at the edge ; columella covered with a smooth 

 polished transparent enamel ; canal very short, recurved. 



Hab. Hongkong. 



A single specimen of this very beautiful species was dredged by 

 William Cuthill, Esq., in the vicinity of Hongkong. A specimen of 

 it in the old collection of the British Museum had been inadvertently 

 confounded with Triton Sowerbyi (Reeve), from which it is obviously 

 distinct. The shell presents characters common to several species, 

 but differs from all its congeners in the form of the whorls being 

 more rounded, and in the smoothness of the mouth. Its nearest 

 analogue is perhaps T. testaceus (Morch), from which it differs in the 

 last whorl being larger, the mouth more open, and the spire more 

 acute. It differs in the same respects from T. clathratus (Sowerby), 

 besides being much more finely cancellated. 



2. Ovulum sinense, sp. nov. (Plate LXXII. figs. 1, la.) 



O. testa pyriformi, ventricosa, antice subattenuata, utrinque sub- 

 rostrata, tenuiuscula, subpellucida, alba, linea aurantiaca ad 

 marginem cincta, transverse obsolete striatula, striis longitudi- 

 nalibus irregularibus obscure decussata ; apertura subpatula, 

 arcuata, intus lactea ; columella superne calloso lirata, in/erne 

 subexcavata, ad canalem valide uniplicata ; labio externo den- 

 ticulato : long. 30, lat. 19, alt. 13. mill. 

 Shell pyriform, ventricose, somewhat attenuated posteriorly, 

 slightly beaked at both ends, rather thin, semitransparent, white, 

 encircled with an orange line at the margin, very obscurely decus- 

 sated ; aperture rather wide, arched, milk-white within ; columella 

 with a thickened ridge at the upper part, somewhat excavated below, 

 with a strong plait at the canal ; outer lip denticulate. 

 Hab. Hongkong {Cuthill, two specimens). 



There is a specimen of this species also in the British Museum, 

 which was placed with O. adriaticum, from which it differs consider- 

 ably in form and structure, being much stronger and more ventricose. 



3. Strombus robustus, sp. nov. (Plate LXXII. figs. 3, 3 a.) 



S. testa conica, solida, ventricosa, cceruleo-alba, castaneo zonata 

 et maculata ; spira parviuscula acuta; anfractibus noduloso- 

 angulatis, superne spiraliter striatis ; anfractu ultimo in medio 

 fere Icevi, deinde versus marginem conspicue striato, ad basin 

 sulcato ; apertura elongata, canali superne spiram ascendente ; 

 columella callosa, alba, obsolete lirata; labio externo emargi- 

 nato, intus lirato : long. 48, lat. 31 mill. 

 Var. /3 testa luteo-fusco fasciata. 



Shell conoid, solid, ventricose, bluish white, banded and blotched 

 with dark brown ; spire rather short, acute ; whorls angulated and 

 noduled at the angle, spirally striated above ; last whorl almost 

 smooth in the middle, then towards the margin conspicuously striated, 

 grooved at the base ; aperture elongated, with a canal at the upper 

 part, running up the spire ; columella furnished with a thickened white 

 enamel, which is faintly ridged i outer lip emarginated ; interior ridged. 



