31 Bulletin 38 61 



Distribution. — Lower Miocene, Chipola marl, Fla.; Upper 

 Miocene Galveston well at 2158-2920 feet (Harris). 



Genus COITUS Linnajus 



proteus Hwass, Enc. Meth. vers, i, pt. 2, p. 682, 1789; Reeve, 

 Conch. Icon.,f. 219, b; Dall, Bull. 37, U. S. N. M., p. 94, 

 1889; Vaughan, Publ. No. 133, Carn. Inst., p. 171, 1910; 

 Maury, Bull. Am. Pal. No. 29, p. 42, pi. 6, f. 11, 1917. 



leoninus Hwass, 179 1, spurius auctores, as of Gmelin. 



Distribution. — West coast Florida, 19 fms. South to Vene- 

 zuela. Pliocene, Caloosahatchie River, and Pleistocene, 

 Ivabelle, Fla. 



centurio Born, Mus. Vind., pi. 7, f. 10, 1780; Trj-on, Man., 6, p. 

 33, f. 9, f. 68, '1884: Dall, Bull. M. C. Z., 18, p. 69, '89. 



Distribution. — Antilles. Also Gulf of Mexico between 

 Mississippi delta and Cedar Keys at 25 fms. 



delessertianus Recluz, Mag. deZool., pi. 72, 1843; Tryon, Man., 



6, p- 33, pl- 9, f- 67, '84; Dall (as delessertii) Bull. 37, 

 U. S. N. M., p. 94, '89. 



Distribution. — Hatteras to West Florida, 22-63 ^"i^^- Doubt- 

 ful specimen, Porto Rico. 



flavescens Gray, Sowerby, Conch. 111., f. 68; Tryon, Man., 6, p. 

 36, pl. 10, f. 84, 1884; Dall, Bull. 37, U. S. N. M. , p. 94, 

 1889. 



Distribution. — Hatteras to Barbados, and West Florida, 15- 

 170 fms. Pliocene to Recent. 



floridanus Gabb, Am. Jour. Conch., 4, p. 195, pl. 15, f. 4, 1868; 

 Tryon, Man. 6, p. 38, pl. ii, f. 4, 5, 1884; Dall, Bull. 37, p. 

 94, 1889; Tr. W. Inst. Sci., 3, p, 27, 1890. 



Distribution. — Hatteras to Florida Keys and West Fla. 

 Pliocene of the Caloosahatchie beds. 



