725 



V. testa ovata, pallidissime fulva, subcompressa, laminis latis 

 pallide coloratis extantibus utrinque ad latera interruptis turn uni- 

 lobatis cincta ; latere postico producto, oblique subtruncato, mar- 

 giue dorsali planulatim excavato ; latere antico brevi ; lunula lae- 

 vigata, impressa. 



The broad concentric laminae are interrupted for a space, and 

 then terminate in a broad square lobe at each side. The form is 

 rather flat and oval. 



65. Venus Cumin gii (pi. clvii. f. 122), Sowerby, jun. 



V. testa rotundata, ventricosa, alba, laminis latis crenulatis 

 pallide rufo-strigatis tenuibus utrinque ad latera interruptis turn 

 unilobatis cincta ; latere postico subtruncato ; margine dorsali 

 planulatim excavato, breviusculo ; latere antico brevi ; lunula laevi- 

 gata, impressa; margine intus minute crenulato. 



Rounder and shorter than V. calopliyla, with the laminae inter- 

 rupted and lobed in the same manner. They are prettily wrinkled 

 and coloured with light pink rays. 



Specimen in Mr. Cuming's collection from Port Jackson. Jukes. 



66. Venus plicata (pi. clx. f. 174), Gmelin, 3276. 



V. testa compresso, subcordata, alba, pallide fulva, partim ru- 

 bro tincta, postice subquadrata, antice brevi ; laminis concentricis 

 elevatis, tenuibus, antice insequaliter expansis, postice angulatim 

 bilobatis et productis ; margine dorsali arcuato, planulato ; lunula 

 lsevi, impressa ; margine intus crenulato. 



The shell is of a flattish-cordate form, rather square at the back, 

 and the laminae very deep, unequally expanded at the anterior 

 side, and posteriorly produced into two rather tortuous, squarish, 

 elevated, distant lobes. 



West Africa. 



67. Venus lamellata (pi. clx. f. 175), Lamarck, Anim. sans 

 vert. Venus, no. 28. 



V. testa oblongo-subquadrata, compressa, pallide fulva, partim 

 rubro tincta ; laminis elevatis, concentricis, subtus striatis, ad mar- 

 gines subrefiexis, insequaliter lobatis, postice quadratis, productis, 

 bilobatis ; latere postico angulato, truncato ; margine dorsali la- 

 minato, planato ; lunula laminata ; margine interno minutissime 

 crenulato. 



