30 Bulletin 34 6a 



(Propeamusium) pourtalesianum Dall. B. M. C. Z., 12, p. 211, pi. 

 4, f. 3, pi. 5, f. 12, '86 ; Bull. 37, U. S. N. Mus., p. 34, 

 pi. 5, f. 12, '89. 

 Distribution. — Dredged, Cedar Keys to Grenada. Charlotte 

 Harbor at 13 fnis. Maximum depth S05. Min. tempera- 

 ture 39° F. Mottled v2.x\^ty^^marmoratiim Dall (B. M. C. 

 Z. 9, p. 117, 1881 : Bull. 37, U. S. Nat. Mus., p. 34, pi. 4, 

 f. 3, 1889). 



cancellatum Smith, Chall. Rept. Lam., p. 315, pi. 23, f. 8, '86 ; 

 Dall, B. M. C. Z., 12, p. 213, pi. 5, f. I, 2, '86. 

 Distribution. — Charlotte Harbor to St. Vincent, 13-1591 fms. 

 Cape San Antonio and Yucatan Strait. 



Genus PLICATULA Lamarck 

 gibbosa Lamarck, Syst. An. s. Vert., p. 132, 1801. 



spondyloidea Meuschen, (as Ostrea), Mus. Gronov., 1778. 



Not Linngean in nomenclature ; Arango, Fauna Mai. 



Cuba, p. 271, 1878 ; Dall, B. M. C. Z., 12, p. 227, 1886 ; 



Vaughan, Publ. 133, Carn. Inst., p. 171, 1910. 

 ratnosa Lamarck, An. s. Vert., p. 184, 1819. 

 cristata Gabb, Trans. Am. Phil. Soc, vol. 15, p. 247, 1873. 

 vexillata Guppy, Geol. Mag., vol. i, p. 444, pi. 17, fig. 7, 



1874. 

 ramosa Dall, Bull. 37, U. S. Nat. Mus., p. 32, '89 ; Singley, 



Fourth Ann. Rept. Geol. Surv. Texas, p. 324, '92. 

 gibbosa Dall, Trans. Wagner Inst. Sci., 3, pt. 4, p. 763, '98 ; 



Vanatta, Proc. Acad. Nat. Sci. Phila., vol. 55, p. 756, '03. 

 Distribution. — Hatteras to Rio la Plata. Gulf coast. — Ft. 



Barranca, St. Joseph's Bay, Crooked Island, Florida ; 



Horn Island, Mississippi ; Galveston. Pleistocene : New 



Orleans pumping station No. 7 ; New Orleans Gymnasium 



well at 1200 feet ; Labelle, West Fla. 



Genus SPONDYLUS Linnseus 

 echinatus Martyn, Univ. Conch,, 2, fig. 154, 1784. 



,</>aM2^/z/t?rM5 Lamarck, An. s. Vert., 6, p. 191, 1819 ; Dall, 

 Bull. 37, IT. S. N. Mus., p. 32, '89. 



