PECTEN.— Plate IV. 



Species 22. (Mus. Cuming.) 



Pecten Strangei. Pect. testa subtrigono-ovatd, aqui- 

 valvi, plano-compressa, (equilaterali, auricidis i?iaqiia- 

 libus ; valvis vei'sus marginem temdliratia, costis quiu- 

 queradiatk, quorum tribiis centralibus latiusculis pla- 

 no-convexis, distantibus ; valvd sinistrd lutescente-albd, 

 costis livido-fuscescentibus; valvd duxtrd lutescente- 

 albd, immaculatd, auriculis violascentlbus, laferibus 

 purpureo-roseo strigatis. 



Strange's Pecten. Shell somewhat triangularly ovate, 



equi valve, flatly compressed, equilateral, ears unequal; 

 valves finely ridged towards the margin, rayed with 

 five ribs, of which the three central are rather broad, 

 flatly convex, and distant ; left valve yellowish-white, 

 ribs livid-brown ; right valve yellowish-white, un- 

 spotted, ears violet-tinged, sides streaked with purple- 

 rose. 

 Hab. Moretou Bay, Australia. 



A very characteristic species, flatly compressed, broadly 

 and sparingly ribbed, and strikingly coloured. 



