VENUS. 



Plate XVII. 



Species 71. (Mus. Cuming.) 



Venus M.\ctracea. Ven. testa ovatd, calcareo-nlba, coji- 

 centric} Virata el striata, liris strasr/iie valde irreyu- 

 laribm, lunula. excavalo-elov(jatd. 



The Mactra-like Venus. Shell ovate, chalk-wlnte, 

 poncentrically ridged and striated, ridges and strise 

 very irregidar, lunule excavately lengthened. 



Brddeiup, Pro. Zool. Soc. 1835, p. 44. 



Iltth. Valparaiso (from sandy mud at a depth of twenty 

 fathoms) ; Cuming. 



An opake ciialk-white species, with very mucli the ap- 

 pearance of a tertiary fossil. 



Species 7:2. (Mus. Cuming.) 



Venus disckepans. Ven. testa subpeclinato-ovatd, fiil- 

 vescente-albd, concentrici costatd, costis tumidis, rotun- 

 datis, confer tiuscuUs, suhtus crispato-crenulatis, fer- 

 rii(/i.neo-fiisco punclatis, urea ligamenti lata. 



The differing Venus. Shell subpectinately ovate, 

 fulvous-white, concentrically ribbed, ribs swollen, 

 rounded, rather close-set, crispately crenulated be- 

 neath, dotted with rust-brown, ligamentary area 

 l)road. 



Sowerby, Pro. Zool. Soc. 1835. p. 32. 



Hab. Islay, Peru ; Cuming. 



Veiy like V. Peruviana, with the posterior foliations of 

 the concentric ribs decorticated. 



Species 73. (Mus. Cuming.) 



Venus Aphrodinoides. Ven. tesld oblique cuneiformi, 

 plano-compressd, fulvescente-albd, griseo-pmictatd, un- 

 dlque concentrice valide liratd, liris acutis, intersti- 

 tits profundi excavatis, latere aniico brevissiino, pos- 

 tico elongato producto. 



The Aphrodine-like Venus. Shell obliquely wedge- 

 shaped, flatly compressed, fulvous-white, dotted with 

 grey, concentrically strongly ridged throughoxit. 

 ridges sharp, iuterstices deeply excavated, anterior 

 side very short, posterior elongately produced. 



Hab. St. Vincent's Gulf, South Australia ; Augas. 



More inequilateral than V. Aphrodina or Peronii, all 

 of whicli are very closely allied, with the umboes more 

 sharply angular, and, above all, with tlie ridges, as La- 

 marck describes them, more eminent. 



Species 74. (Mus. Cuming.) 



Venus .EGROTA. Ven. testa subqnadrato-ovald, veiilri- 

 cosd, tenuiculd, albidd, pallide rufescente-fusco sparsim 

 Jlammatd, undique dense irregulariter reticulata. 



The sickly Venus. Shell somewhat squarely ovate, 

 ventricose, rather thin, wliitisli, sparingly flauied 

 with pale red-brown, densely irregularly reticulated 

 throughout. 



Hab. Singapore ; Cuming. 



This a])pears to me to (HftVr from any variety of V. 

 reticulata, and it has no indication of the red colouring so 

 characteristic of the internal hinge margin of that species. 



Species 75. (Mus. Cuming.) 



Venus STRIATULA. Ven. testa pectinato-orbiculari, al- 

 bidd, cinereo-griseo lineari-punctatd et radtalu, con- 

 centricii liratd, liris nunc acutis nunc obtusis, snb- 

 reflexis, inierdmii undalo-corrugatis, coiifertis. 



The finely-striated Venus. Shell pectinately orbi- 

 cu'ai-, whitish, linearly dotted and rayed with ash- 

 grey, concentrically ridged, ridges now sharp now 

 obtuse, a little reflected, sometimes wave-wrinkled, 

 close-set. 



Pectmicnlus striatidus, Da Costa, Brit. Conch, p. 191. 

 pi. 13. f. 3. 



Venus striatula, Donovan. 

 Veniis gallina, Maton and Kackett. 

 Venus Pennantii, Forbes. 

 Venus lamiaosa, Turton. 

 Venus riigosa, Pennant. 

 Venus Prideauxii, Couch. 

 Venus sulcata and coslata. Brown. 



Hab. European Seas. 



The large specimen here Hgured is the Mediteriaueaii 



June, 1S(J3. 



