412 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 



Carditacea. 



Carditidae. 



VENERICARDIA Lamakck. 



CYCLOCARDIA Conrad. 



Venerioardia (Cyclocardia) velutina Smith. 



Cardita (Actinobolus) veliitinus Smith, P. Z. S. Lond , 1881, p. 42, pi. 5, fig. 8. 

 Venericardia (Cyclocardia) velutina Dall, Proc. Acad. Nat. Sci. Phila., Jan., 1903, 

 p. 708. 



U. S. S. " 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 aud in the straits in 17 to 77 fathoms, rather 

 common. 



CARDITA (Bruguiere) Lamarck. 



GLANS Megerle. 



Cardita (Glans) sulcosa Dall. 



Plato 6, figure 2. 



Cardita (Glans) sulcosa Dall, Proc. Acad. Nat. Sci. Pbila., 1903, pp. 707, 715. 



U. S. S. "Albatross," station 279S, in Panama Bay, in 18 to 30 fathoms. 

 U. S. N. Mus. 96,278. Also at station 2799 in 29^ 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. 



Kclliellidae. 



ALIGENA II. C. Lea. 



Aligena H. C. Lea, Trans. Amer. Phil. Soc. 1845, ser. 2, 9, p. 238 ; type, A striata 

 Lea, op. cit., pi. 34, fig. 13 ; Dall, Trans. Wagner Inst. Sci., 1900, 3, p. 1176. 



This genus in the eastern United States extends from the later Oligocene to 

 tlie recent fauna. Spnniodon Reuss, 1S67, from the Miocene of Galicia, should 

 be compared with Aligena. 



