412 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY. 
Carditacea. 
Carditidae. 
VENERICARDEA Lamarck. 
CYCLOCARDIA Conran. 
Venericardia (Cyclocardia) velutina Smita. 
Cardita (Actinobolus) velutinus Smith, P. Z. S. Lond , 1881, p. 42, pl. 5, fig. 8. 
Venericardia (Cyclocardia) velutina Dall, Proc. Acad. Nat. Sci. Phila., Jan., 1903, 
p. 708. 
U.S. 8. “Albatross,” station 2780, Magellan Strait, in 369 fathoms, mud, 
temperature 47° F. U.S. N. Mus. 96,239. Also at various localities on the 
west coast of Southern Chile and in the straits in 17 to 77 fathoms, rather 
common. 
CARDITA (Brucuitre) Lamarck. 
GLANS Mscerte. 
Cardita (Glans) sulcosa Dat. 
Plate 6, figure 2. 
Cardita (Glans) sulcosa Dall, Proc. Acad. Nat. Sci. Phila., 1908, pp. 707, 715. 
U.S. S. ‘ Albatross,”’ station 2798, in Panama Bay, in 18 to 30 fathoms. 
U.S. N. Mus. 96,278. Also at station 2799 in 294 fathoms. 
A small quadrate species, with a deep sulcus in the posterior margin, and 
variegated color pattern of dark brown, red-brown, and white. 
Leptonacea. 
Kelliellidae. 
ALIGENA H.C. Lga. 
Aligena H. C. Lea, Trans. Amer. Phil. Soc., 1845, ser. 2, 9, p. 288; type, A. striata 
Lea, op. cit., pl. 34, fig. 13; Dall, Trans. Wagner Inst. Sci., 1900, 3, p. 1175. 
This genus in the eastern United States extends from the later Oligocene to 
the recent fauna. Spaniodon Reuss, 1867, from the Miocene of Galicia, should 
be compared with Aligena. 
