VENUS.— Pl.vi'e XV. 



Species 61. (Fig. a, h, Mus. Cuming.) 



Venus Columbiensis. Veu. testa peclinato-ovatd, fid- 

 vescente, cinereo-f/riseo i-adiatim aspersci et maculatd, 

 iuterdinn plus minus ciiiereo-fuscd, radiallm costatd, 

 costis obtuse planatis, interstiim suhprojande incisis, 

 costis ai/ticis cornif/cdo-crenatis. 



The Columbian Venus. Slicll pectiiuitely ovate, ful- 

 vo\is, vadiately sprinkled and blotclied witli ash-grey, 



sometimes more or less with ash-brown, radiately 

 ribbed, ribs obtusely flattened, interstices rather 

 deeply cut, anterior ribs corrugately erenated. 



SowERBY, Pro. Zool. Soc. 1835, p. 21. 



Hab. St. Elena, West Columbia. 



This very elegant species varies eunsiderably in its 

 pattern of colouring, but little in form and sculpture. 



