CYPE^A.— Plate XVI. 



lihus plerumque reflexis, dentihus suhmmerom ; dorso 

 luteo vel cinnamomeo, maculis rotundis albis plus mi- 

 misve numerosis ornato, hasi lateribmqve ehurnek. 

 The sieve-like Coweey. Shell ovate-oblong, rather 

 thin, sides mm-ginated generally with the extremities 

 reflexed, teeth rather mvmerous ; back yellow or cin- 

 namon-brown, ornamented with more or less nume- 

 rous roimd i^hite spots, base and sides ivory white. 



Testa junior. 

 Testa junior Jlaveicente-ladeo latifasciata, immaculata. 

 Younger shell encircled vaih. broad bands of yellowish 



cream-colour, without spots. 

 LiNNEUS, Syst. Nat. (12th edit.), p. 1178. 

 Hail. Ceylon. 



It is not literally correct to say that the back of tlus 

 species is spotted ; there is no deposite of spots, the last 

 coat of cinnamon-brown coloiu' being perforated, like a 

 sieve, the white or cream colom-ed gi'ound of the interme- 

 diate state is seen thi'ough each orifice. The two different 

 shades generally observable in the coloiu-, shows that the 

 left mantle of the animal must be of unusually large pro- 

 portion, whilst the right is small and feeble. 



Species 82. (Fig. a and b, Mus. Saul.) 



Cypr^a staphyl.i;a. Cypr. testa ovatd, dorso multigra- 

 noso, ffranis latera versus prominentioribus, lateribus 

 et extremitatibusfoveolatis, dentihus per basem utrinque 

 exteiisis ; dorso lavendulo aut cinereo-violaceo, granis 

 albidis, dentibtts et extremitatibm croceo-fmcescentibus, 

 extremitatibm interdmn purpureis, basi albicante. 



The geape-shot Cowrey. Shell ovate, back many- 

 gi'ained, grains more prominent towards the sides, 

 sides and extremities pitted, teeth extended across 

 the base on each side ; back lavender or ashy violet, 

 gi-ains whitish, teeth and extremities yeUomsh brown, 

 extremities sometimes purple, base whitish. 

 Variety /3, Fig. 82 a. 



Testa grandior, tenidor, dorso lavigato, maculis granorum 

 locis. 



Shell larger, thinner, smooth, with spots instead of grains. 

 LiNNEUS, Syst. Nat. (12th edit.), p. 1181. 



Variety ft Cijprcea interstincta. Wood. 



Varietas intermedia, Cypraa limacina, Lamarck. 

 Hob. Philippine Islands (aU varieties) ; Cuming. 



This I consider, without exception, the most variable 

 species of the genus, so much so that I can only particu- 

 larize the two extremes through which all the variations 

 range. The typical variety (Fig. b.) is small and granu- 

 lous, the opposite variety (Fig. a.) is smooth, the grains 

 being replaced by spots, and larger, confirming with pecidiar 

 accm-acy an observation in my Monograph of the Cones to 

 the effect that all those varieties of shells in which the 

 surface is raised in granules, are proportionally more dimi- 

 nutive in size. One of the most constant character through- 

 out the varieties of this species is the yellowish-brown co- 

 louring of the teeth and extremities, indeed it is hard to 

 distinguish some of the white varieties from the C. nucleus 

 except by this peculiarity. 



Species 83. (Mus. Cuming.) 



CYPRiEA LisTERl. Cgpr. testa ovatd, depressii/sculd, late- 

 ribus extremitatibusque marginatis et foveolatis, denti- 

 busfortiuscwlis, interstitiisprqfunde excavatis ; dorso 

 pallide olivaceo, punctis perpaucis albidis, guttis oli- 

 vaceo-fuscis sparsis huequaUbus ornato ; lateribiis basi- 

 que purpurasceiite-violaceis, purpurea lineatis et punc- 

 tatii. 



Lister's Cowtiey. Shell ovate, rather depressed, sides 

 and extremities marginated and pitted, teeth rather 

 strong, interstices deeply excavated ; back pale oUve, 

 ornamented with a veiy few white dots, and a few 

 scattered unequal olive-browTi spots ; sides and base 

 pale piu-jjle-violet, dashed and dotted with purple. 



Gray, Zool. Jom-nal, vol. 1. p. 507. 



Mab. Philippine Islands ; Cuming. 



A beautiful species, and one of gi-eat rarity, well distin- 

 guished by its pecidiarity of colouring. 



