VENUS. 



Plate V. 



Species 14. (Mus. Cuming.) 



Vkni's LisTEiii. Fen. testa subquadrato-m-atd, venlri- 

 cusii, Julvcscenie-alba, curin'O-Jmcesceiile olsciire h'liCi- 

 ffiiiosa, coHcentrice laminatd, laminis ad lutiis posiicum 

 tfiiiiibus, erc'clls, ad auticKin tumidis, recitrvis, laminis 

 omnibus iiitersiiiiisque costeUis radiantibns cmiiilalis, 

 latere postico subtruncato. 



Lister's Venus. Shell somewhat squarely ovate, ven- 

 tricose, I'ulvous-wliite, obscurely freckled with flesh- 

 brown, concentrically laminated, laniioie thin and 

 erect on the posterior side, swollen and recur\ed 

 on the anterior, all the lamina3 and interstices crenu- 

 ■ lated with small radiating rilis, posterior siile slightly 

 truncated. 



Dosina Liitcri, Gray, Analyst, 1838. 

 I'l^Hiis Lisleri, Sowerby. 



JIab. Philippine Islands ; Criming. 



The lamina-, which from being crowded together on the 

 anterior side are swollen and recurved, are on the posterior 

 side, thin, free, and erect. 



Species 15. (Mus. Cuming.) 



\ EN IS CASINA. fen. lestd snbquadrato-orbiciilari, ciil- 

 careo-albd, inierdmn spadiceo-roseo mucidatd ct bira- 

 diatd, coHcenirice cosiaid el liratd, cos/is lirisqne vulde 

 irregularibus, jilus minus plicato-recunis, ad latus 

 posiicum eredo-lamellalis. 



The chambered Venus. Shell somewhat squarely 

 orbicular, chalk-white, sometimes spotted and two- 

 rayed with fawn-rose, concentrically ribbed and ridged, 

 ribs and ridges very irregular, more or less plicately 

 recurved, erectly lamellated at the posterior side. 



Venvs casina, Linnfeus, Syst. Nat. p. 1130. 

 Pecluncnlus membrauaceus, Da Costa. 

 Venus reflexa, Montagu. 

 P^enus lactea, Donovan. 

 Venus discina, Lamarck. 

 Venus Rusterusii, Payraudeau. 

 CytJierea njlexa. Couch. 



Hub. European Seas. 



The British .specimens of this well-known species are 

 rarely coloured, excepting in an early stage of growth. 

 They are mostly a didl stone-white, with the ribs and 

 ridges more or less reflected. 



Species 16. (Mus. Cinning.) 



Venus rosalina. Ven. lestd sublriyono-ovatd, gibbosins- 

 cnld, fulvescente-albd, spadiceo-roseo linctd et radiatim 

 promiscne grandimaculutd, concentrice costatd, costis 

 laliiisculis, solidis, plano-oblusis, ad exlremitalem pos- 

 ticam plicato-anriculatis. 



The rosy Venus. Shell somewdiat triangulariy ovate, 

 rather gibbous, fulvous-white, tinged and radiately 

 ])roniiseuously blotched with fawn-rose, concentrically 

 ribbed, ribs rather broad, solid, flatly obtuse, pli- 

 cately auriculated at the posterior end. 



Rang, Giierin, Mag. de Zool. 1834, class v. pi. -IS, 



llttb. Island of Goree, West Africa. 



This shell is not of the same quadrate form as /'. casina, 

 and the coloui'ing and sculpture are of a distinct character. 



Species 17. (Mus. Cuming.) 



Venus magnifica. Vtu. tesld globoso-cordatd, crassd, 

 ponderosd, fulvescente-albd, ferrugineo-fusco lincld et 

 circa umbones maculatd, nigricante-violaceo concentrice 

 fasciald, radiatim confertim lineari-sulcatd, concentrice 

 liratd, liris distantibus, vix laminaiis, ad lalns anlicum 

 obluse snbfinibrialis. 



The magnificent Venus. Shell giobosely heart-shaped, 

 thick, heavy, fulvous-wdiite, stained and spotted about 

 the umboes with rust-brown, concentrically banded 

 with dark-violet, radiately closely linearly grooved, 

 concentrically ridged, ridges distant, scarcely lami- 

 nated, slightly obtusely fimbriated on the anterior 

 side. 



Sowerby, Thes. Conch, part xiv. p. 70-1. pi. 153. f. 5. 



Hub. Island of Ticao, Philippines ; Cuming. 



A globose violet-banded shell, quite distinct from any 

 form of V. puerpera. 



April, 1SG3. 



