4 
bus, angulis squamuld eminentiore porrectis ; ared ligamenti 
pland, angustd ; sinu pallii triangulari, apice acuto, inequilate- 
rali, horizontali. 
Hab. Ceylon. Coll. Cuming. 
13. Venerurpis Cuminen, Desh. (Pl. XVIII. fig. 3.) V. testd 
elongato-ovatd, transversd, inequilaterali, compressd, ineequi- 
valvi, albo-grised, corneo-translucidd, ad apices squalide viola- 
ced, antice obtusd, postice latiore, truncatd ; lamellis numerosis 
erectis, acutis, postice crispis, imbricatis cinctd, interstitiis 
levigatis ; umbonibus minimis, minutissime longitudinaliter 
striatis ; valvis inequalibus, deatrd majore, profundiore, in- 
tus violaceis, postice saturatiore violaceo maculatis; cardine 
tridentato, altero bidentato; sinu pallii angusto, acuto, elon- 
gato, horizontal. . 
Hab. ? Coll. Cuming. 
14. Venerupis Cuinensis, Desh. V. testd elongato-trans- 
versd, subtrigond, valde inequilaterali, candidissimd, antice 
obtusd, declivi, postice angulatd, subrostratéd, longitudinaliter 
ad umbones tenue et obsolete striatd, lamellis distantibus erec- 
tis, postice eminentioribus, angulum rectum formantibus, cinctd ; 
valvis in longitudinem fiexuosis ; nymphis intus extremitate 
violaceis ; sinu pallii angusto, brevi, acuto, horizontali. 
Hab. Chinese Seas. Coll. Cuming. 
15. VENERUPIS PULCHERRIMA, Desh. (Pl. XVIII. fig. 7.) V. 
testd elongatd, transversd, angustd, cylindraced, inequilaterali, 
antice brevi, obtruncatd, postice truncatd, margine superiore 
inferiort parallelo, longitudinaliter striatd, striis postice eva- 
nidis, lamellis erectis, brevissimis, antice brevibus, postice albis 
elevatioribus cinctd, albo lutescente ; umbonibus parvis; ared 
ligamenti angustd, sub-levigatd ; valvis intus albis ; sinu pallii 
angusto, acuto, horizontalt, trigono. 
Var. 5. Testd striis longitudinalibus nullis. 
Hab. Philippines. Coll. Cuming. 
16. VENERUPIS PLANICosTA, Desh. JV. testd ovato-transversd, 
valde inequilaterali, lateraliter compressd, antice brevissimd, 
obtusd, albo-flavd, postice squalide violascente, obtusd, tenuissime 
et dense striatd, striis planis, incisis, lamellis brevibus, irre- 
gularibus cinetd ; margine inferiore recto, superiore postice ar- 
cuato ; valvis intus albis, postice violaceis ; sinu pallii minimo, 
submarginali, triangulari, angulis acutis. 
Hab. Swan River. Coll. Cuming. 
17. VeneRvupis DERELICTA, Desh. V. testd ovatd, transversd, 
plus minusve angustd, irregulari, inequilaterali, depressiusculd, 
intus extusque roseo-purpured vel albescente, longitudinaliter 
tenue striatd, striis incisis, transversim lamellosd; lamellis 
brevibus, postice eminentioribus, erectis ; umbonibus minimis, 
