VEXERUPIS.— Plate IV. 



Species 2G. (Fig. ir, h, Mas. Sowcrby.) 

 Venerupis rugo.-!A. Ven. tei-td oHongd, rectiusctild, crn^sA, 

 nonunquam ad wiihones roseo-purpured, intenlum 

 intm postice fusco-purpureo pictd, medio antic'eque 

 disvupte et angulatim rugosd, poslice rngis concen- 

 tncis, crassiilscuHs liratd ; latere posdco latiiZs- 

 culo, late triincato. 



The rugose Venerupis. Shell oblong, rather straight, 

 thick, sometimes purplish-rose at the umboes, 

 sometimes painted inside posteriorly with purple- 

 brown, wrinkled in the middle in a broken and 

 angular m;inner, posteriorly ridged with concen- 

 tric, rather thick wrinkles ; posterior side rather 

 broad ; widely trimcated. 



Desh.\tes. Proc. Zool. Soc. 



Hab. Swan River. 



The form is similar to that of Tapes perforans, but the 



surface is wrinkled in small angles, excepting at the 



back, where there are regular ridges. 



Species 27. (Mas. Ilanley.) 

 Veneritts interstriata. Ven. te^ld rhomhoided, 

 ■ poslii'e pallide et minute liueis rubrin reliculald ; 

 ronceiitrice crebre laminatd, inter laminas mimttis- 

 sime striatd; latere antico angustiuscolo, brevi, 

 subtus umboncs excavato ; latere postico latiori, 

 oblique angulato, margine dorsali recto ; margine 

 terminali late Iruncato. 

 The interstkiated VENERnns. Shell rhomboidal, 

 posteriorly reticulated with fine red lines, concen- 

 trically closely laminated, very finely striated be- 

 tween the laminae, anterior side rather narrow, 

 short, excavated beneath the umboes; posterior side 

 broader, obliquely angular, dorsal margin straight; 

 terminal margin broadly truncated. 

 nwERBY. Thesaurus Conchyliorum, Venerupis, No. 

 17, fig. 26. 

 Hab. ? 



rugis sublamiiiatis, suhundalis ; latere postico 

 oblique angulato, margine rectangulato. 



The PAUPER Venerupis. Shell small, short, oblong, 

 rather square, concentrically irregularly wrinkled ; 

 wrinkles sublaminated, rather undulated ; posterior 

 side obliquely angular, with rectangular margin. 



Deshayes. Proc. Zool. Soc, 1853. 



Hab. Mazatlan. 



Species 28. (Mus. Brit.) 

 C ENERUPis PADPERCULA. Vcn. testd parvd, brevi, ob- 

 ortim-subquadratd, concentrice irregulariter rugatd , 



Species 20. (Mus. Brit.) 

 Venerupis planicosta. Ven. testd subquadratd, dis- 

 tanter concentrice laminis distantibus planulatis 

 liratis ; radlatim minute striata ; latere antico 

 brevissimo ; umbonibus mbterminalibus ; latere pos- 

 tico subquadrato, mai-gine dorsali declivi ; manjine 

 ventrali recto. 



TuE flat-ribbed Venerupis. Shell subquadrate, dis- 

 tantly concentrically ridged with distant flattened, 

 laminae ; radiately minutely striated ; anterior side 

 very short; umboes nearly terminal, posterior side 

 rather square, with dorsal margin sloped ; ventral 

 margin straight. 



Desuates. Proc. Zool. Soc, 1853. 



//„/,. ? 



More rectangular than Vencrvpis obesa. 



Species 30. (Mus. Hanley.) 



Venerupis interjecta. Ven. testa oblongo-subqvad- 

 rata, postice roseo angulatim lineatd, laminis con- 

 centricis actitis subdistantibus rugatd, radiatim 

 minutissime striatd ; latere postico oblique angxdato, 

 ad terminum expanso, latere dorsali recto, elevaio, 

 ad terminum cuneafo. 



The interjected Venerupis. Shell oblong-subqua- 

 drate, posteriorly lineated with rose, concentrically 

 wrinkled with sharp, rather distant laminse, ra- 

 diately very minutely striated ; posterior side 

 obliquely angular, expanded at the end; dorsal 

 margin straight, elevated, cuneate at the end. 



Deshayes. Brit. Mus. Cat. 



Hab. New Holland. 



