CYPRtEA. 



Plate VIII. 



Species 26. (Mus. Saul.) 



CYPE.EA PYRUM. Cypr. testa pyriformi-ovatd, podice um- 

 biUcatd, extremitate posticd dextrd subproductd, deuti- 

 hus irevidiis, subexiliius ; dorm fidvo-lutesceute, ob- 

 scure quuJrifasciato, castaiieo-fusco copiose mannorato, 

 basi, extremitatibm lateribusqueaurantio-'riifis, dentibus 

 paUidis, interstdm sitbrosaceis, lateribus interdum c(m- 

 taneo-fiiscis, fiisco sidvratiore obscure pmictaiis. 



The peae Cowry. Shell pyiifoi-mly ovate, posteriorly 

 umbilicated, right posterior extremity somewhat pro- 

 duced, teeth short, rather faint ; back fulvous yellow, 

 obsciu-ely ibiu'-bauded, copiously marbled with rich 

 chesnut browu; base, extremities, and sides deep 

 orange-red, teeth pale, interstices tinged with pink, 

 sides sometimes chesnut brown, obscurely dotted with 

 darker brown. 



Testa junior. 



Testa junior lutesceus, incarnato-fmcescente (fiadrifasciata, 

 luteo-fusco subiilissimi marnwrata, basi lucteo-aurantid. 



Younger shell yellowish, crossed with foiu' broad flesh- 

 brown bands, very finely marbled with yeRowish 

 brown, base milky orange. 



Gmelin, Syst. Nat. 3411. 

 Cypraa jiavescens. Born. 

 Cypraa rufa, Lamarck. 



Hab. African shores of the Mediterranean. 



This is the most northern species of Cypraa with such 

 a brilliant display of eoloiu-ing ; the base and sides are of 

 a deep orange-red, and the back is richly marbled with 

 chesnut brown upon a yellowish four-banded gi-ound. The 

 teeth ai'e somewhat faintly developed, and do not make 

 their appearance untd the shell is on the eve of matimty. 



Species 27. (Fig. a. and b. Mus. Cuming.) 



Cypr^ea arenosa. Cypr. testa orbiculari-ovatd, cra^sh- 

 simd, subdepressd, lateribus turgidis, aperturd angustd, 

 extremitatibus retusis,basi convexd,dentibus7iiimifis, nu- 

 merosis, colmnellarihus subtilissimis eloiigatk, exteriori- 

 bus brevibus ; dorso ccerideo-cinereo, fasciis quateruis 

 carneolo-fuscis ornato, lateribus cinereo-fuscis, supra 

 arenaceo-striatis, basi eburned. 



The sandy Cowry. Shell orbicularly ovate, very thick. 



somewi.at depressed, sides swollen, apertiu-e narrow, 

 extremities blunt, base convex, teeth minute, nume- 

 rous, the colimieUar very fine and elongated, the outer 

 short ; back blueish ash-coloiu-, ornamented with four 

 camelion-brown bands, sides ash-brown, arenaceously 

 striated above, base ivory-white. 

 Testa junior. 



Testa junior oblongo-ovata, fuscescetis, fasciis quaternis car- 

 neoUs cingulata. 



Young shell oblong-ovate, pale brown, encircled with four 

 caraeMon bands. 



Gray, Zool. Jom-nal, vol. 1. p. 1-18. pi. 7. and 12. f. 6. 



Hab. Isle of Annaa, Pacific Ocean (found on the reefs) ; 

 Cuming. 



The plan of colom-ing in this species, and the two 

 which foUow, ofi'ers an exception to the general ride : — 

 in the dorsal surface of the shell receiving no new orna- 

 mental distribution of colour on arriving at maturity. The 

 calcifying energies of the mantle at an advanced stage of 

 growth are exclusively du'ected, and with more than usual 

 force, to the thickening of the sides, accompanied in the 

 present species by a duU brown deposite of coloui-, thi'ow- 

 ing up a number of fine arenaceous striae. 



The banded layer of enamel in the Cypraa armusa, veti- 

 triculus, and sidcidentata, is therefore analogous to the in- 

 termediate banded layer of most Cowries, and to the dor- 

 sal hiatus, of which the Cyprasa talpa, carneola, and pulchra 

 exhibit still more exaggerated modifications. 



Species 28. (Mus. Ciuning.) 



Cypr^e.a ventriculus. Cypr. testa ovatd, crassissimd, 

 lateribus turgidis, subangulatis, extremitatibus refusis, 

 basisubconcavo-depressd ; dorso cceruleo aut Uvido-cine- 

 reo, fasciis quaternis carneolis ornato, lateribus nigri- 

 cante-castaneis, supra rubidis, infra fmneo-albicantibus, 

 striis subtilissimis copiose exorieidibus ; basi albicatde. 



The ventricle Cowry. Shell ovate, very thick, sides 

 swollen, rather angulated, extremities blunted, base 

 somewhat concavely depressed ; back blueish or livid 

 ash, ornamented with four carneUon bands, sides 

 blackish chesnut, red above, smoky white beneath, 

 with a number of very fine stri* rising ; base whitish. 



December 1845. 



