VENU S. 



Plate XXV. 



Species 13G. (Fig. a, b, Mas. Cuming.) 



Venus undulosa. Ven. testa tricjoiiii, siibrequilalerali, 

 compress!' convexd, albidd, riifo-fasco jiliis minus lineari- 

 undutii, concentrlci teiiuistriatd. 



The ttaved Venus. Shell triangular, nearly equilateral, 

 compressly convex, whitish, more or less linearly 

 waved with red-brown, concentrically finely striated. 



Lamarck, Aniin. sans vert. vol. vi. p. 370. 

 Venus iindulosa and variahilh, Sowerby. 

 CJiione iindulosa, Deshayes. 



Hab. Swan River, New PloUand. 



Of an unusual equilaterally triangular form, more or 

 less copiously waved with red-brown lines upon a white 

 ground. 



Species 127. (Mus. ]5rit.) 



Venus MITIs. T'en. tesld snbtr'i(jono-ovald, postici siibde- 

 clwi-acitinDnitd, vpaco-albd, uinhoiilbiis roscls, concen- 

 tfice lamiiiatn-costatd, costis calloio-rejti-xis, in iuter- 

 stitiis rajinliin creiiatis, intns pnrpurasci'ute. 



The mild Venls. Shell somewhat triangularly-ovate, 

 posteriorly rather slopingly acuminated, opake-white, 

 uraboes rose-coloured, concentrically lainellately 

 ribbed, ribs callously reflected, radiately crenated in 

 the interstices, purple within. 



Chione mitis, Deshayes, Cat. Conch. Brit. ilus. p. l-i3. 



Hab. Swan Eivcr, ISIew Holland. 



A delicate opake-white Co/-i!i«/«-like shell, rose-coloured 

 at the umboes, delicately crenulated in the interstices be- 

 tween the concentric ribs. 



Species 12S. (Mus. Cuming.) 



Venus gemma. Ven. testd snbtriijono-orbicidnri, siibob- 

 liqiid, pelliicido-cdbd, lirido-piirpurasceide tinctd, con- 

 centrice ten ne Urato-striald. 



The gem Venus. Shell somewhat triangularly orbicu- 

 lar, rather oblique, pellucid white, tinged with livid- 

 puiijle, concentrically finely ridge-striated. 



Totten, Sillim. Journ. vol. xxvi. p. .367. f. 3. a to d. 

 Gemma gemma, Deshayes. 



Hab. Massachusetts Bay, United States. 



" This beaiitifid little amethystine gem, as it has been 



appropriately called," says Dr. Gould, "is found in great 

 abundance on all the sandy shores of Massachusetts Bay. 

 Colonel Totten found it in Newport Harbour, beyond 

 which its range is not known.'' 



I Species 129. (Mus. Belcher.) 



Venus quadrangularis. Ven. testa subquadrato-oKatd, 

 compressiiisciild, pallide stramhied, nitente, nwbonibns 

 roseis, concentrice teiiue irregnlariter striata, Iniiidd 

 parnm distinctd. 



The quadrangulah Venus. Shell somewhat squarely 

 ovate, rather compressed, pale straw-colour, shining, 

 pink at the umboes, concentrically finely irregularly 

 striated, lunule but little distinct. 



Adams and Eeeve, Moll. Voy. Samarang, p. 79. pi. 21. 

 f. 7. 

 Chione qnadrangidaris, Deshayes. 



Hab. Corean Archipelago. 



Peculiarly square-formed, of a light shining straw-co- 

 lour, with pink umboes. 



Species 130. (Mus. Brit.) 



Venus rudekata. J\'n. testd tate oblique ovatd, sordide 

 albd, fenae radiatim liratd, liris binis, concentric!: pii- 

 catd, plicis valde irreijnlaribas, ad talus posticuni. 

 rude laminatis, l/iniild nnlld. 



The rude Venus. Shell broadly obliquely ovate, dead- 

 white, finely radiately ridged, ridges in pairs, concen- 

 trically plicated, plaits very irregular, rudely lami 1- 

 lated on the posterior side, no lunule. 



Chione rnderata, Deshayes, Cat. Conch. Brit. jMus. p. 13(1. 



Hab. California. 



Of peculiarly rude growth, with much of the general 



aspect of a Venerupis. 



Species 131. (Mus. Cuming.) 



Venus OBESA. Ven. testd oljUqne ovatd, postice subacn- 

 viinatd, solidd, gitibosiHScald, tacted, violaceo-griseo 

 nilide obsrnrii radiatd, lavigatd, epidermide tcnui cor- 

 ned partiin indntd. 



The sTour Venus. Shell obliipu?ly ovate, posterimly 



March, 1861. 



