64 BlTLLETlX 34 96 



New Orleans G>Tunasium well at 1200 feet, Knapp's 



wells, Terrebonne Parish No. i at 2000-2150, 2250-2450, 



No. 2 at 1 190-1430, 1791-1S42. No. 3, 1200-1300 feet. 



Pliocene : Caloosahatchie and Shell Creek, Fla. Upper 



Miocene : Galveston well at 2^^2-2600 feet (Harris). 

 (Fragum^ medium Linnaeus. Syst. Nat., ed. X, p. 67S, 175S : 



Reeve, Conch. Icon., 2, Cardium, pi. 6, f. 30. 1S44 : Dall, 



Bull. 37, r. S. N. M., p. 52, '89; Tr. W*. I. S., 3, p. 



iioi, 1900: Proc. U. S. N. M., 23, p. 386. '01 ; Glenn, 



Miocene, Md. Geol. Sur\\, p. 322, pi. S6, f. 6 a, 6 ^, 1904. 

 Hcmicardium columba Heilprin, Tr. W. I. S., i, p. 93, pi. n, 



f. 26, 1SS6. 

 Distribution. — North Carolina to Santa Marta. Brazil, 2-15 fms. 



Miocene (Md. and N. Car.) to Recent. Gulf coast. — "SV. 



Florida. Pliocene : Caloosahatchie and Shell Creek. 

 (Trigoniocardia^ galvestonense Harris, Bull. Am. Pal., i. No. 3, 



p. 91, pi. I, f. 3, 3a. 1S95 ; Olsson, Nautilus, 7, p. 102. 



pi. 6, f. S. 9, II. 12, Jan., 1914. 

 Distribution. — Miocene of the Galveston well at 2443-2S71 



feet (Harris), and of the Choptank River, Man-^land. 



(Olsson^. 

 (Trigoniocardia) apatetjcum Dall. Tr. W. I. S., 3, p. 1105, pi. 40. 



f. 15, pi. 48, f. 6, 1 90c. 

 Distribution. — Miocene of Oak Grove, Santa Rosa Co.. Fla., 



and of the Mobile Oil Co.'s No. i well. Mobile, Ala., at 



1500-1556 feet. No. 2 well. Bascom. at 1241 feet. 

 (Papyridea 1 spinosum Meuschen. Mus. Gevers. p. 442. 1787. (as 



Cardia): Dall, Tr. W. I. S.. 3. p. 1106, 1900: Proc. U. 



S. N. M., 23, p. 387, '01. 

 buUaium of many authors but not of Linnaeus. 

 sc>l€nifonnc Bmg^uiere. Enc. Meth.. Vers., i. p. 235, 1789 ; 



Wood, Gen. Conch., p. 233, pi. 56. f. 3. 181 5. 

 Note. — Meuschen' s description of spinosum. according to Dr. 



Dall, was based on a figrare by Lister of a Jamaican shell. 



The Pacific form aspersum Sowerby is exceedingly close 



to this Atlantic species. 



