8 PROCEEDINGS OF THE NATIONAL MUSEUM vol.70 



NUCULA FERNANDINAE, new species 



Shell resembling N. culehrensis in sculpture but less emphatic, the 

 form much more trigonal and relatively more inflated, the marginal 

 crenulations coarser, the escutcheon feebly impressed with no distinct 

 limits and no bordering crenulation. Length, 4; height, 3.6; diam- 

 eter, 2.25 mm. U. S. Nat. Mus. Cat. No. 108198. 



Off Fernandina, two specimens and one larger valve. The teeth 

 numbered 8 and 11 ; the beaks are particularly prominent. From the 

 variety ohliterata of N. crenulata it differs by form, by greater solidity, 

 and apparently by smaller size. Both forms are distinctly more 

 trigonal than N. crenulata A. Adams, but the present one especially so. 



NUCULA VERRILLn Dall 



Nucula trigona Verrill, Trans. Conn. Acad., vol. 6, p. 438, 1885; not of 

 Bronn, 1849. 



Nucula verrillii Dall, Bull. Mus. Comp. Zool., vol. 12, p. 248, 1886; Proc. 

 U. S. Nat. Mus., vol. 12, p. 257, pi. 14, fig. 4, 1889.— Verrill and Bush, 

 Proc. U. S. Nat. Mus., vol. 20, p. 853, pi. 95, fig. 10, 1898. 



Off Fernandina and Georgia, north to latitude 39° 44' and south 

 to Yucatan, in 294 to 1,825 fathoms. 

 This occurs in moderate numbers. 



NUCULA PROXIMA OVATA Verrill 



Nucula proxima (Say), variety ovata Verrill, Proc. U. S. Nat. Mus., vol. 20, 

 No. 1139, p. 852, pi. 81, fig. 6, pi. 88, fig. 5, 1898. 



Off Georgia, and in Vineyard Sound oft' Cuttyhunk, in 18 fath- 

 oms (Verrill). 



One valve apparently referable to this form was dredged off Georgia. 



Family LEDIDAE 



Genus LEDA Schumacher 

 Section lEDELIA Verrill 



LEDA MESSANENSIS Seguenza 



Leda acuminala Jeffreys, Ann. Mag. Nat. Hist., July, 1870, p. 69. — Segu- 

 enza, Nuc. Terz., p. 1175 pi. 3, figs. 15 a — 15 e. : not of von Buch, 

 1849. 



Leda messanensis Segxjenza, Nuc. Terz., p. 1175. — Jeffreys, Proc. Zool. 

 Soc, June 17, 1879, p. 576, 1880. 



Off Georgia and Fernandina, not uncommon. South to Barbados 

 in depth from 100 to 1, 002 fathoms. 



LEDA ORIXA, new species 



Shell small, smooth, equivalve, nearly equilateral, rounded in front, 

 acute behind, with a slight flexure in front of the rostrate end, the 



