lEDA (?) 3LARA Quppy. 



leda olara Gupp:^ , 1874, Oeol. Mag., Decade 2, vol. 1, p. 442, 



(oheok list) pi. 17, figs. 1, la. 

 leda Clara Gupoy, 1875, Geol. Mag., Decade 2, vol. 2, p. 42. 

 Leda clara Guiopy. 1^382, Proc. Sci. Assoc. Trinidad, p. 172, pi. '?', 



fig. 4. 



Description .- "Subelliptical, lanceolate, nearly equilater~ 

 al, somewhat but not extremely rostrted. Disk smooth, shining; 

 valves with a few fine close regular concentric riblets r)ercepti- 

 ble near the anterior ai:!o:le, vvhere an indistinct sulcus runs up- 

 wards towards the umbo. IIo distinct escutcheon, Lunule narrow, 

 indistinctly defined. Urabones prominent. Ventral mars-in slight- 

 ly angulated at about a third of its length from the posterior 

 point, *ere an obscure carina ruj.s to the m.arpln from the umbo. 

 Length 12 mill., height 6, thickness about 4 ram." (Gupoy 1875) 



Type locality .- Jamaica. 



Shell large, heavy, moderately convex, subequilateral; ant- 

 erior dorsal margin conve", posterior dorsal margin excavated; 

 abruptly rounded anteriorly; posterior margin bluntly rostrate 

 above and obliquely truncated below, the slope of the trimcat- 

 ion abruptly joining the direct, me-^.ian portion of the ventral 

 margin; umbones low, a-rproximately centrcl in position, strongly 



