704 



in front, the swell of each scallop being toAvards the ventral mai'- 

 gin. The dorsal edge is raised and arched ; the anterior side 

 very short, with the umboes bending downwards ; the lunulc 

 large, and defined by a deep suture. In all tlie species of this 

 group the inner margin is crenulated, Tli\i colour is pale fawn, 

 variegated with light and dark brown, with one or two broad 

 rays, and the back a duU ])urple ; a large tinge of purple at the 

 hinder part of the interior. There is also a large white shell in 

 Mr. Cuming's collection, almost denuded of its concentric ridges, 

 which must be referred to tliis species. 

 Island of Luzon, Philippines. Cuming. 



2. Venus magnifica (pi. clii. f. 5), Sowerh^^jun. 



V. testa rotundata, ponderosa, sulcis radiantibus planulatis et 

 costellis concentricis distantibus crassiusculis undulatis postice 

 obsoletis decussata; pallide fulva, ad umbones fusco variegata, 

 propc marginem ventralem purpurascente, fasciis concentricis 

 purpurascentibus ornata, intus alba ; margine dorsali angusto, 

 uniphcato, rectiusculo; umbonibus elevatis, rotundatis; latere 

 antico brevi ; lunula magna, distincta. 



This shell has not the inferior purple patch of V. puerpera, it 

 is more rounded and less oblique, tlie umboes are rounded and 

 elevated, the dorsal margin is not arched, and concentric ridges 

 appear naturally obsolete. The figure in the 'Encyclopaedia' 

 (pi. 278. f. 1) gives a better idea of our shell than it does of 

 V. puerpera, while that in Chemnitz (f. 388, 389) represents the 

 latter exactly. 



Island of Ticao, Philippines. Cummg. 



3. Venus laceeata (pi. clii. f. 3, 4), Ilanley, Sp. of Shells, 

 Appendix Wood's Supplement, pi. xvi. f. 23. 



V. testa tenui, ventricosa, rotundata, alba, pallide fulvo-varie- 

 gata, sulcis numerosis planulatis radiantibus et costellis numerosis 

 concentricis antice undulatis postice laminatis et acute laqueatis 

 decussata; margine dorsah angusto, paululum arcuato, elevato, 

 longitudinahter plicato ; margine ventrali antice ascendente ; lu- 

 nula magna, impressa. 



In form more like V. magnifica than V. 2)i('erpiera ; a much 

 lighter shell than either ; the ribs in both directions more nume- 

 rous, and very delicately and sharply fluted and laminated at the 

 back. 



Island of Zebu, Philippines. Cuming. 



