STROMBUS. 



ri,ATE VIII. 



Species 13. (Fig. a, Mus. Cuming.) 

 Stkombus Ruppellii. Stromb. testa oblonffo-fiisiforiiii, 

 spird aatminato-titrritd, anfractiius superne concavo- 

 depressis, sitbttngulath, ad angnlum. pUcnto-tubercttlatis, 

 tidii'i-ciiJis iiiiiiit'riisk, (iiifracfii iillinio pone lahrnm lon- 

 ililiiiliiiiilih-r cii-ihiln J nnliiiliui li'iiiiilindo, colmnelld 

 iiirmmdii, luiiiiiKifd, siipenie sidtliHier corrugatd, 

 apertiircB fame oornujaid ; Jlamcaitte-albd, ustuhto- 

 fusco Idc illic tlnctd et fasciald, labro pnrpnreo-fusco, 

 fasciis anrjHstis albis radiato, colmnelld et aperturcefauce 

 intense piirpiireo-fuscis. 

 Ruppell's Strombus. SlieU oblong-fusiform, spire 

 acuminately turreted, whorls concavcly depressed 

 round the upper part, slightly angled, plicately tu- 

 bereled on the angle, tubercles numerous, last whorl 

 ribbed longitudinally behind the lip and radiately 

 finely ridged, columella thickened, laminated, finely 

 wrinkled at the upper part, interior of the aperture 

 wrinkled ; yellowish-white, stained and banded here 

 and there with bunit-brown, lip piu-ple-brown, rayed 

 with narrow white bands, colimiella and interior of 

 the aperture rich purple-brown. 

 Hab. Red Sea ; RuppeU. 



An acuminately turreted species, closely plicately ribbed, 

 in which the swollen longitudinal rib behind the lip is 

 characterized by a pm-ple-browii colouring crossed with 

 nan'ow white rays. 



The shell represented at Fig. 13.^ is in bad condition, 

 and can scarcely be referred to this species without doubt. 



Fig. 14. (JIus. Brit.) 

 Strombus accipitrinus, var. This shell is the <S. in- 

 ermis of Swainson in the Bligh Catalogue, and of 

 Sowerby in Thesaurus Conchyliorum, but on com- 



parison with S. arcipi/riiiits I find it to lie merely ; 

 state of that species in which the shell is of lightc 

 growth, the spire more acuminated, and the tubercle 

 smaller and more regidar. The detail of scidptur 

 is alike in both varieties. 



Species 15. (Fig. o, /j, Mus. Cuming.) 

 Strojibus gibberulus. Siromb. testa oblongo-conicd, 

 basin versus nttenuatd, spird exsertd, acntd, anfracli- 

 bus superne inaqnaliter gibbosis, quasi disfortis, Mc 

 illic varicosis, juxla snturas marginatis, iransversitn 

 varili striatis et liratis, nonnnnqnam partini lavigatis, 

 colmnelld Icemgatd, aperlurce fauce seepissime tenue cor- 

 rmjatd; albidd uut fluvicante, rufo-fusco interdnm 

 autem raro fasciatd, colmnelld et apertures fauce nunc 

 roseis, nunc pttrpureis ant violaceis. 

 The hunch-backed Strombus, Shell oblong-conical, 

 attenuated towards the base, spii-e exserted, sharp, 

 whorls unequally gibbous, as though distorted, here 

 and there varicose, margined next the sutures, trans- 

 versely variously ridged and striated, sometimes par- 

 tially smooth, columella smooth, interior of the aper- 

 tvu-e most frequently finely WTinkled ; whitish or yel- 

 lowish, sometimes, but rarely, banded with mottled 

 red-brown, columella and interior of tlie aperture 

 sometimes pink, sometimes purple or violet. 

 LiNN^us, Syst. Nat. (1 2th edit.) p. 1210. 

 Hab. Philippine Islands (in sand at low water), and 

 Society Islands (on the coral reefs) ; Cuming. 

 Red Sea; Forshal. 

 This well-known gibbously distorted species has a wide 

 geographical range in the eastern and east-Pacific Seas, 

 varying considerably in colour, but constant in its pecu- 

 liarity of forms. 



December, 1850. 



