VENUS.— Plate XXI. 



bons, posteriorly flexuously acuminated, dull-fulvous, 

 radiately ridged, ridges close-set, rudely limbriately 

 latticed with thin scabrous ridges, lunula large, liga- 

 raentaiy area large but rather compressed. 



LiNN^us, Syst. Nat. p. 1133. 

 Cytkerea squamosa, Lamarck. 



Hab. Philippine Islands, Bay of Manilla (in sandy mud) ; 

 Cuming. 



The latticed sculpture of this species is not in sharp 

 relief as in V. ducoruia, but crowded and obtuse. 



Species 103. (Mus. Cuming.) 

 Venus subnodulosa. Vm. testa suhohJongo-ovatd, sub- 

 aquilaterali, fuhescente-albd, roseo-fusco tinctd et ra- 

 diat'im Ir'ujono-maculatd , radialim pUcato-costatd., cos- 



tis et inlerstitiis widique reguluriter lineari-sulcaiis, 

 lunuld impressd, ir.tense fused, area Ugamenti parvd, 

 excavatd, maculatd. 



The sligutly-noduled Venus. Shell rather oblong- 

 ovate, nearly equilateral, fulvous-white, stained and 

 triangularly radiately blotched with rose-bromi, ra- 

 diately plicately ribbed, ribs and interstices regularly 

 linearly grooved throughout, lunule impressed, dark- 

 brown, ligaraentary area small, excavated, spotted. 



Hanley, Pro. Zool. Soc. 1S44. p. 160. Kecent Shells, 

 App. p. 360. pi. 16. f. 19. 



Mab. Philippine Islands. 



Encircled with great regularity liy fold-like ribs, which, 

 together w-ith the interstices, are beautifully linearly grooved 

 throughout. The grooves can scarcely, however, be said 

 to render the ribs nodulous. 



