735 



dulated near the sides, becoming very fine and narrow near the 

 posterior margin. 

 Mediterranean. 



94. Venus striata (pi. clxii. f. 207-213), Chemn., Conch, 

 f. 364, 365, 366. V. tristis, Lamarck, Anim. sans vert. Venus, 

 no. 73. V. aurisiaca, Wood's Suppl. pi. 2. f. 12. Var. (f. 208), 

 V. Japonica, Ginel., p. 3270. V. elegantina, Lamarck, no. 83. 



V. testa ovali-subcordata, aurantifi, grisea vel alba, immaculata 

 vel maculis griseis angulatim et radiatim picta, intus nonnun- 

 quam aurantia ; costellis kevigatis, numerosis, rotundatis, prope 

 latera subundatis cincta ; latere postico subelongato, subangulato, 

 vix truncato, acuminato ; margine dorsali lajvigato, plerumque 

 livido, literato ; latere antico breviusculo, subrotundato ; lunula 

 oblonga, polita, livida; margine ventrali prope medium inilato, 

 intus laevigato. 



At first sight it would appear an easy matter to separate two 

 shells so seemingly distinct as the extreme varieties represented 

 by f. 207 (F. tristis and V. striata), and f. 208 {V. Japonica and 

 V. elegantina) ; but it happens very perplexingly, that we have 

 specimens partaking the characters of both in every point of dif- 

 ference. Although the varieties differ in height, in fulness, in 

 the degree of posterior angularity, and in colour, they agree in 

 having numerous, slightly irregular, not perfectly concentric ribs, 

 the ventral margin swelled and smooth within, and the dorsal area 

 and lunule oblong and shining. The var. named tristis has an 

 orange tint within. The pretty little variety V. aurisiaca is from 

 Mr. Hanky's collection. 



The species ranges from Japan to the Philippines and New 

 Holland. 



95. Venus Labuana (pi. clxii. f. 214), Adams, Moll. Sama- 

 rang, p. 79. pi. xxi. f. 16. 



"V. testa subtriangulari, gibbosa, antice truncata, postice 

 flexuosa, acuminato-rostrata, albida, lineis nigricantibus acute an- 

 gulatis ornata, concentrice valde sulcata; sulcis irregularibus ; 

 margine ventrali postice sinuato." 



Not very widely different from the more acuminated varieties 

 of V. striata, but much more produced and decidedly beaked, 

 more concentrically and regularly sulcated, more full and rounded 

 in front. It is elegantly marked with fluctuating grey lines. 



Labuan. Adams. 



5 c 



