214 SMITH : ON THE GENUS ASTARTE. 



A quadrangular species approaching A. sulcata, but of small 

 size, with remarkably erect, fine, numerous ribs, and with a plain 

 edge to the valves and a narrow hinge. 



8.— ASTARTE NANA Jeffreys. 



Habitat. — Off Conch Reef, Gulf of Florida, 60 fathoms 

 (Pourtales). 



This interesting little species will be fully described by 

 Dr. Gwyn Jeffreys. It is thick ish in proportion to its small 

 dimensions, strongly concentrically ridged and furrowed, of 

 somewhat quadrate form, nnd covered with a thin pale, greyish 

 epidermis. The inner margin of the valves, judging from the 

 few specimens at present known, appear to be smooth. /A-^ 



9.— ASTARTE CASTA NEA Say: 



1803. Venus sulcata Montagu. Test. Brit., vol. i., p. 131. 

 1807. V. sulcata Maton and Rackett. Trans. Linn. Soc, 

 p. 8r, pi. ii., f. 2. 



181 7. V. sulcata Dillwyn. Cat. Rec. Sh., vol. i., p. 166. 



1818. V. sulcata Lamarck. An. s. Vert., vol. v., p. 592. 

 1822. V. castanea Say. Journ. Acad. Nat. Sci. Philad., 



vol. ii., p. 273. 



1827. Crassina sulcata Brown. 111. Rec. Conch., pi. xviii., 



f. 10. 



1828. Astarte sulcata Fleming. Brit. Animals, p. 439. 



1829. A. crassidens Brod. & Sow. Zool. Jour., vol iv., p. 364I 



1830. A. castanea Say. Amer. Conch., pi. i. 



1831. A. castanea Conrad. Amer. Mar. Conch., p. 72, 



pi. xvii., £ 3. 

 1835. Crassina castanea Deshayes. An. s. Vert., ed. 2, 

 vol. vi., p. 258. 



J.C.,iii., July, 1881 



