VENUS. 



Plate XXII. 



Species 103. (Mus. Cuming.) 



Venus C0STELLIFER.\. Ven. tesld transverse ovatn, sub- 

 efqiiil/tlernli, fidvescenU'-albd, riifo-fiisco spursim punc- 

 tata, vnd'iqne radiaiim costeUatil, costellis covfertis, 

 covceiitr'wi imbricalia, hiiiiilu obsoleld, area ligameiiti 

 parrd, angiistd. 



The finely-ribbed Venus. Shell somewhat transversely 

 ovate, nearly equilateral, fulvous-white, sparingly 

 (lotted with red-brown, finely radiately ribbed through- 

 out, ribs close-set, concentrically imbricated, lunula 

 obsolete, ligamentary area small, narrow. 



Ad.vjis and Keeve, Moll. Voy. Samarang, p. ?9. pi. 21. 

 f. 18. 



Hub. Philippine Islands ; Belcher. 



Allied to V. Marica, but destitute of any posterior fo- 

 liations, and with a nnudi smaller liiramentarv area. 



Species 104-. (Fig. a, b, c, Mus. Cnming.) 



^ ENUS Marica. J~eii. lesld transverse ovatd, subcequi- 

 laterali, utrbique umbones subangulald, fiilvescente- 

 albd, interdum rosea tinctd, spadkeo-fusco radiatim 

 viacalatd, radialhn costellatd, costeUis luiuinis sca- 

 brosis concentricls imbricatis, Iambus ad anyuhi.iii. pos- 

 ikiiiii foliuceis, Iniiidd et ared ligamenti snbawpUs, 

 iiiodu-e impressis, saturate fnscis. 



The Marica Venus. Shell transversely ovate, nearly 

 e(iuilatcral, rather angular on either side of the uni- 

 boes, fulvous-white, sometimes tinged with rose, ra- 

 diately blotched with fawn-brown, radiately finely 

 ribbed, ribs imbricated with concentric scabrous 

 lamina?, laminae foliaceous on the posterior angle, 

 lunule antl ligamentary area rather large, mode- 

 rately impressed, dark-brown. 



LiNNJSUs, Syst. Nat. p. 1130. 



Hab. Philippine Islands ; Cuming. 



It will be seen that a great deal of interesting character 

 is developed in this species. 



Species 105. (Fig. a, b, Mus. Cuming.) 



Venus bilineata. T'eit. testa cordato-orbiculari, inter- 

 dum subtrianyulari, crassd, fulvescente, olivaceo-fusco 

 undique radiatim bilineatd, radiaiim tenuiliratd, con- 



ceulrice liratd, liris irregularibus, nunc laiiiiuatis, 

 nunc obtusis, tuniild et area ligameiili intense fiiscis, 

 acute excavalis. 



The two-lined Venus. Shell cordat.ely orbicidar, 

 sometimes rather triangular, thick, fulvous, radiately 

 two-lined throughout with olive-brown, radiately 

 finely ridged, concentrically ridged, ridges irregular, 

 sometimes laminated, sometimes obtuse, lunule and 

 ligamentary area dark-brown, sharply excavated. 



Hab. Gulf of California. 



A strongly-marked species, partaking of the characters 

 of r. compta and siibhnbricata ; all three may, indeed, be 

 different states of one and the same species. 



Species 106. (Mus. Cuming.) 



Venus gallinula. Fen. testa transverse ovatd, sub- 

 olilonyd, fulvescente, spadiceo-fusco undique punctata, 

 cvncentrice lauiiuato-costatd, costis numerosis, sub- 

 re/lexis, subcrenidatis, lunula et ared ligamenti modice 

 excavalis. 



The hen Venus. Shell transversely ovate, rather oblong, 

 fulvous, dotted throughout with fawn-brown, concen- 

 trically laminately ribbed, ribs numerous, a little re- 

 flected, slightly crenulated, lunule and ligamentary 

 area moderately excavated. 



La-Mauck, Auim. sans vert. vol. vi. p. 348. 



Hab. Australia. 



Concentrically refleetcdly ridged with great regularity, 

 the ridges being dotted throughout with fawn-brown. 

 I follow Mr. Sowcrby in assigning this shell to La- 

 marck's V. gallinula, but it should be stated that great 

 doubt attaches to that opinion. Lamarck describes his 

 species as being " cordately elliptic,"' which this shell is 

 not. 



Species 107. (Fig. a, b, Mus. Cuming.) 



Venus .iustr.vlis. Ven. testa transverse ovatd, utrinque 

 umbunes subtriangidari, fulvescente-ulbd, ferrugineo- 

 roseo interdum tinctd, spadiceo-fusco interrupte tri- 

 radiaid, undique confertim imbricato-cluthratd , lunula 

 et ared ligamenti subangustis. 



The southern Venus. Shell transversely ovate, some- 



June, 1863. 



