S T R i\I B U S 



^pec■ies 21. (Fig. 



il, Mus. Cuiuiiig.) 



Stuo.'mius v.iEiABlLis. SIrontI). teski ovntd, npird exaertd, 

 liirrild, tarlcosd, fiiifniHibnn lavibm, bad sulcatis, 

 .vipcnu- iJi'dicUiKfi d inujulaih, m1 unguium nodosis, 

 riilihurlhl riiUimK iiinlio ! uiii'iiliiixruhi, liiliro incrassato, 

 xubiiliilo, suju'i-iii' nhiiinto ; alba, aurantio-fusco varie 

 ttri(jald aut fasciutd, coluii/clld macula purpiwed ayiipld 

 hilarduM liiictd. 

 The VAKI.4BLE Stkojiuus. Shell ov:itc, spire exserted, 

 tiu-retcd, varicose, whorls smooth, grooved at the 

 base, slanting and angled at the upper part, nodose 

 at the angle, columella callous, rather swollen in the 

 middle, lip thickened, slightly winged, sinuated at 

 the upper part ; white, variously streaked and band- 

 ed with orange-brown, columella sometimes stained 

 with a large purple blotch. 

 Sw.viNSOX, Sowerby Thes. Couch. 

 Hab. Fig. a, Darnley's Island, North Australia ; Jukes. 

 Fig. h and d. Island of Ticao, Philippines ; Cuming. 

 Fig. c, Zanzibar, East Africa ; Thorne. 

 This specie.- lias a wide range of habitation aiul consi- 

 deralile local variety of colouring. It is remarkably con- 

 stant in form, and is well distinguished by its turreted 

 nodulous spire, slightly alatc expansion of the lip, and 

 swollen callositv of the columella. 



Species 22. (Mus. Metcalfe.) 

 Strombus tricornis. Stromb. testa ovatd, siMrigond, 

 spird conicd, aiifractibua spiraliter utriatis ft liratis, 

 superite concavin et uodoso-tubercidaiis, tubcrcuUs tri- 

 hiis dorsuUbus peramplk, promineniibm, colimtelld cal- 

 losd, labro incrassato, triyono-e.cpttnso, super?ie in acu- 

 men elonf/atum producto ; Jlavicautc-albd, epidermide 

 crassiuscidd indiitd, colvmelld et apertura fuuce pur- 

 purascente-carnmlis. 

 The three-horned Strombus. Shell ovate, somewhat 

 triangular, spire conical, whorls spirally striated and 

 ridged, concave and nodosely tubercled round the 

 rapper part, the thi-ee dorsal tubercles very large and 

 promineut, columella callous. Up thickened, triangu- 

 larly expanded, produced above into a point ; yellow- 

 ish-white, covered with a rather thick epidermis, 

 columella and interior of the aperture purplish-flesh. 

 Lamauck, Anim. sans vert. (Deshayes' edit.) vol. ix. p. 6S9. 

 Ilab. lied Sea ; Metcalfe. West Indies ; Lamarck. 



The specimen here figured from Mr. Metcalfe's collec- 

 tion was received with several others from the Ked Sea, 

 along with Magilus, Pedum, and other genera peculiar to 

 that locahty, and if the habitat. West Indies, given by 

 Humphreys and Lamarck, be con-ect, we have a remark- 

 able coincidence of an observation in genus Oliva, — that 

 the only two species inhabiting the Ked Sea are identical 

 with two in the West Indies. 



December, 18.50. 



