8 7 



MOIXUSCA OF THK GULF OF MKXICO 



55 



Mobile Bay, Ala. Pleistocene : North Creek and La- 

 belle, West Fla. Pliocene : Variety caloosana Dall, Ca- 

 loosahatchie and Shell Creek. 



(PseudomiStha) floridanus Conrad, Am. Jour. Sci., 23, p. 344, 

 1833, ( as Lucina floridana) \ Dall Bull. 37, U. S. N. M., 

 p. 50, '89 ; Harris, Bull. Am. Pal., 1, p. 90, '95 ; Dall, 

 List Cameron Sh.; Proc. U. S. N. M., 23, p. 809, '01 ; 

 Vanatta, Proc. A. N. S. Phila., 55, p. 756, '03. 

 Distribution. — West Florida to Texas. Upper Micocene (?) 

 to Recent. Localities. — Charlotte Harbor, Ft. Barranca, 

 St. Mark's, St. Joseph's Bay, Crooked Island, Fla. ; Horn 

 Island, Miss. ; Chandeleurs, La. ; Corpus Christi, Texas. 

 Pleistocene : Osprey, Fla. Upper Miocene (?): Galveston 

 well at 2236-2861 feet (Harris). Possibly these well frag- 

 ments were referable to P. anodonta, a closely related Mi- 

 ocene and Pliocene species. 



(Calfucina) radians Conrad, Trans. Am. Asso. Nat. and Geol. 1, 

 p. no, 1840, (as Lucina) ; Am. Journ. Sci., 41, p. 347, '41; 

 Emmons, Geol. Rep. N. C, p. 291, '58; Tuomey and 

 Holmes, Pleio. Fos. S. C, p. 57, pi. 18, f. 4, 5, '57 ; 

 Holmes, Post-Pi. Fos. S. C, p. 28, pi. 6, f. 3, '60; Dall, 

 Proc. U. S. Nat. Mus., 23, pp. 808, 809, pi. 42, f. 8, 'oi ; 

 Tr. W. I. S., 3, p. 1380, '03 ; Vanatta, Proc. A. N. S., 

 Phila., 55, p. 756, '03 ; Vaughan, Publ. 133, Carn. Inst., 

 p. 171, 1910. 



radiaia Conrad, Fos. Medial Tert., p. 70, pi. 40, f. 3, 1845, 



(as Lucina); Not of Deshayes, '43. 

 Distribution. — N. Carolina to Porto Rico, 5-85 fms. Upper 



Miocene to Recent. Gulf coast. — St. Joseph's Bay, Ft. 



Barranca, Fla. ; Horn Island, Miss. Pleistocene : New 



Orleans pumping station No. 7 ; Labelle, Fla. 

 (ParvSSucina) piriformis Dall, Trans. Wagner Inst. Sci., 3, p. 



1382, pi. 52, f. 6, 1903 ; Aldrich, MS, in coll. 

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



and of the Bascom No. 1 well, Mobile, Alabama, at 1500- 



1556 feet ; Bascom No. 2 well at 1241, 1600 and 1800 feet. 



