737 



In form more like V. aphrodma than V. scalarina, but having 

 the ribs crenulated by fine radiating striae. Lamarck has not 

 mentioned the latter character, and perhaps did not observe it, 

 but the fact of V. aphrodina not being marked with the angular 

 grey lines which characterize some specimens of our species, points 

 to the probability of our identification being correct. 



Australia. 



100. Venus astartoides (pi. clviii. f. 137), PhiMppi, ? 



V. testa ovali-subtrigona, la3vi, alba, epidermide pallide subviridi 

 induta, concentrice leviter costellata; umbonibus corrosis; mar- 

 gine dorsali et lunula declivibus, kevibus ; latere postico subelon- 

 gato, vix truncate 



Rather trigonal, very smooth, colourless, and covered by a thin 

 pale epidermis; the concentric ridges are very slightly raised. 

 This shell has very much the appearance of an Astarte, but is thin, 

 and has a slight bend in the pallial impression. 



Greenland. 



101. Venus gemma (pi. clviii. f. 141), Totten, Silliman's 

 Journal, vol. 26. p. 3G7. 



V. testa minuta, tenui, rotundato-subtrigona, subsequilatera, 

 kevi, postico violacefi; lunula et area dorsali distinctis nullis; 

 pallii impressiones sinu elongato, erecto, trigone 



A mmute, partly rounded, partly trigonal, nearly equilateral, 

 smooth, purple-tinged, thin shell, with a remarkably erect, 

 pointed sinus in the pallial impression. 



New York. 



102. Venus fumigata (pi. clix. f. 152-155), Sozoerby, jun. 



V. testa leevi, crassa, oblique subovali, antice rotundata, plana, 

 postice subangulatim producta, subsulcata, colore fumoso, prope 

 umbones maculatim radiata; area dorsali et lunula lividis, de- 

 pressis, laevibus ; margine ventrali arcuato. 



Much shorter, more full than V. Kochii, and not contracted or 

 beaked behind; there are a few slight grooves on the posterior 

 angle. The colour is dull smoky, with spotted rays near the um- 

 boes. The fine specimen figured, half the natural size, is from the 

 collection of Mr. Gaskoin. I regret being unable to find room in 

 the plates to figure a very smoky variety of this, lately added to 

 Mr. Cuming's collection. 



Australia. Strange. 



