BUI.LETIN 34 74 



Genus HALIR5S Dall 

 fisheriana Dall, B. M. C. Z., 9, p. 106, 1881 ; Idem, 12, p. 291, pi. 

 2, f. \a-b, '86 ; Bull. 37, p. 66, pi. 2, f. /\a-b, 1889. 

 Distribution. — North Atlantic to Barbados, 84-229 fnis. Gulf, 

 West Fla. region. 



Genus ANISODONTA Deshayes 



(Sasterotla) quadrata granatina Dall 



Corbula quadrata Hinds. See Reeve, Conch. Icon., Corbula, 



f. 40, 1843. 

 Poroviyaf granatina Dall, B. M. C. Z., 9, p. 109, '81. 

 quadrata var. granatina Dall. B. M. C. Z., 12, pi. i, 2, a-b, 

 1886. 

 Distribution. — Typical form, Cape I^ookout to St. Thomas, 

 var., Yucatan Strait, 640 fms. 

 (Fulcrella) eliiptica Recluz 



Eucharis eliiptica Recluz, Jour, de Conch, i, p. 168, 1850. 

 Mya simplex Holmes, Post-Pl. Fos. S. C, p. 55, pi. 8, fig. 



16, 1858. 

 Anisodonta eliiptica Vanatta, Proc. Acad. Nat. Sci. Phila., 



55, P- 756, 1903- 

 Distribution. — N. Carolina to West Florida. Pleistocene to 

 Recent. Gulf coast. — Crooked Isl., Calhoun Co., Fla. 

 The ancestral form is A. caroli7ia Dall, N. Car. Miocene. 



Genus CETOCONCHA Dall 

 buHa Dall, B. M. C. Z.. 6, p. 61, 1878, (as Lyonsia) ; Idem, 9, p, 

 107, '81 : 12, p. 283, '86, (as Poromya); Bull. 37, p. 68, 

 pi. 39, f. 2, 5, pi. 65, f. 130, '89. 

 Distribution. — Chesapeake to Gulf of Mexico, 1917-1920 fms. 

 Gulf, Lat. 24° N., Long. 84° W., temperature 39° F. All 

 species recent, abyssal. 



Genus CUSPSDARSA Nardo 



glacialis Sars, Moll. Reg. Arct. Norv., 88, pi. 6, f. 8, 1878, 

 (as Necera); Verrill and Bush, Proc. U. S. N. M., 20, p. 

 800, pi. 71, f. 9, '98 ; Dall, Bull. 37, U. S. N. M., p. 66, 

 '89 ; Johnson Occ. Papers, Bost. Soc. Nat. Hist. 7, No. 



