12 
BULLETIN 112, UNITED STATES NATIONAL MUSEUM. 
LEDA FOSSA CURTULOSA Dali, 1916. 
Proc. U. S. Nat. Mus., vol. 52, No. 2183, p. 39G. 
Bering Sea and Unalaska. 
LEDA PONTONIA Dali, 1889. 
Proc. U. S. Nat. Mus., vol. 12, p. 257, pi. 13, fig. 5b. 
Santa Barbara Islands, California, to Peru and the Galapagos Islands, in 
deep water. 
LEDA LEONINA Dali, 1896. 
Nautilus, vol. 10, No. 1, p. 2; Bull. Nat. Hist. Soc. Brit. Col., No. 2, p. 7, 
pi. 2, fig. 12. 
Straits of Fuca to latitude 36° north. 
LEDA AMELIA Dali, 1905. 
Nautilus, vol. 18, No. 11, p. 123. 
Monterey Bay, California. 
LEDA CONCEPTIONIS Dali, 1896. 
Nautilus, vol. 10, No. 1, p. 2 ; Bull. Nat. Hist. Soc. Brit. Col., No. 2, p. 7, 
pi. 2, fig. 1. 
Aleutian Islands to San Diego, California. 
LEDA GOMPHOIDEA Dali, tSW. 
Proc. U. S. Nat. Mus., vol. 52, No. 2183, p. 396. 
Off Tillamook, Oregon, 786 fathoms. 
LEDA EXTENUATA Dali, 1897. 
Bull. Nat. Hist. Soc. Brit. Col., No. 2, p. 8, pi. 2, fig. 2. 
Off Sitka, Alaska, 1,569 fathoms. 
LEDA SPARGANA Dali, 1916. 
Proc. U. S. Nat. Mus., vol. 52, No. 2183, p. 397. 
Santa Barbara Islands to Point Loma, California. 
LEDA FIASCONA Dali, 1916. 
Proc. U. S. Nat. INIus., vol. 52, No. 2183, p. 397. 
Off San Diego, California, in 822 fathoms. 
LEDA PHENAXIA Dali, 1916. 
Proc. U. S. Nat. Mus., vol. 52, No. 2183, p. 397. 
Oft’ San Diego, California, in 822 fathoms. 
LEDA DALLI Krause, 1885. 
Arch. f. Naturg., vol. 51, p. 27, pi. 3, figs. 1 a-c. 
Unalaska, Aleutian Islands. 
Section PORTLANDIA Morch, 1853. 
LEDA GLACIALIS Gray, 1828. 
Index Test. Suppl., pi. 2, fig. 6. 
Arctic Ocean at Point Barrow. Also Atlantic. 
LEDA COLLINSONI Dali, 1919. 
Sci. Res. Canadian Arctic Exp., vol. 8, pt. A, p. 19a, pi. 2, figs. 3, 4. 
Collinson Point, Arctic Coast. 
LEDA ARCTICA Gray, 1819. 
App. Parry’s Voy., p. 241. — Hanley, Mon Nuculidae, pi. 1, fig. 5. 
Point Collinson, Arctic Ocean. Also Atlantic. 
