FREE INSTITUTE OF SCIENCE 



1379 



TERTIARY FAUNA OF FLORIDA 



Upper Miocene of the artesian well at Galveston, Texas, at a depth of from 

 2236 to 2871 feet below the surface, Hde Harris ; Pliocene of the Caloosa- 

 hatchie beds, Hde Heilprin ; living on the shores of the Gulf of Mexico from 

 Charlotte Harbor, Florida, to Corpus Christi, Texas. 



The specimens of this species from the Galveston well were fragmentary ; 

 those from the Caloosahatchie marl have much larger adductor scars than the 

 recent P. floridanus of the same size, and I am disposed to regard them as young 

 specimens of P. anodonta. I have seen no fossil specimens which I feel con- 

 fident are identical with the living shell, but I have included it here on account 

 of the above-mentioned identifications. 



Phacoides (Lucinoma) acutilineatus Conrad. 

 Lucina acutilineata Conrad, Wilkes' Expl. Exp. Report, vol. x., Geology, App., p. 725, pi. 

 xviii., figs. 2a, 2b, 1849; Gabb, Pal. Cal., ii., p. 100 {ex parte) ; Conrad, Am. Journ, 

 Conch., i., p. 153, 1865. 



(Oligocene or) Miocene of the Astoria shales at Astoria, Oregon, Wilkes; 

 Empire beds (Miocene) of Coos Bay, Oregon, Dall. 



All the specimens of this species, especially Conrad's types in the National 

 Museum, are in poor condition. They differ from the recent forms which have 

 been by Carpenter, Cooper, and Gabb referred to this species b)' being much 

 heavier and thicker shells with the concentric lamellae heavier and more like 

 ribs. They are more convex than the recent P. annulatus Reeve, and have the 

 beaks higher and more central. 



Phacoides (LucinorQa)' annulatus Reeve. 

 Lucina annulata Reeve, Conch. Icon., vi., Lucina, pi. iv., fig. 17, 1850. 

 Lucina flcutilirata Cooper (as of Conrad) in Carpenter, Rep. Brit. Assoc. Adv. Sci. for 



1863, p. 97, 1864. 

 Lucina borealis Carpenter, not of Linnaeus. 

 Phacoides {Lucinoma) annulatus Dall, Synops. Lucinacea, Proc. U. S. Nat. Mus., p. 



813, pi. xl., fig. 10, igoi. 



Pliocene of San Ouentin Bay, Lower California, Orcutt ; living from Sitka, 

 Alaska, to San Pedro, California, in eight to one hundred and thirty-five 

 fathoms, Dall. 



This species is more delicate, more inequilateral, less solid and convex, and 

 with much more delicate concentric sculpture than P. acutilineatus, with which 

 it has frequently been confused. 



The Lucina fibrosa Shumard (Trans. St. Louis Acad. Sci., i., p. 120, i860) 



