ii7 



MoivLUSCA OF THE GULF OF MEXICO 



85 



Isla de Cuba, 2, 1846; Dall, Proc. U. S. N. M., 23, p. 

 296, 1901. 



Distribution. — Gulf of Mexico to the Antilles. Dredged at 60 

 fms. between Cedar Keys and the Mississippi delta. 

 (Scissula) similis Sowerby, British Miscellany, 1806 ; Dall, Proc. 

 U. S. N. M., 23, p. 296, 190 1. 

 decora Say, Jour. A. N. S. Phila. , 5, 1827 ; Hanley, Thes- 

 aurus, pi. 56, f. 27 (only), 1846 ; Dall, Bull. 37, U. S. N. 

 M., p. 60, 1889. 



Distribution. — Florida to Venezuela. Gulf coast. — West Fla. 

 (Scissula) iris Say, Proc. A. N. S. Phila., 2, p. 302, 1822 ; Dall, 

 Bull. 37, U. S. N. M., p. 60, 1889 ; Proc. U. S. N. M., 23, 

 p. 297, 1 901. 



caribcza d'Orbigny, In de la Sagra's Hist. Isla de Cuba, 2, 

 1846. 



Distribution. — North Carolina to Guadeloupe Isl. Gulf coast. 



St. Mark's, Cedar Ke}^s, Ft. Barranca, Fla. ; Cameron, 



La. Pleistocene : New Orleans pumping station No. 7, 



(last identification doubtful). 

 Note. — As its name implies, this lovely shell is remarkable for 



the play of rainbow colors on the valves. 



Genus STRIGSLLA Turton 

 carnaria Linnaeus, Syst. Nat., ed. X, p. 676, 1758; Dithyra 

 Britanica, p. 117, pi. 7, f. 15, 1822 ; Dall, Proc. U. S. N. 

 M., 23, p. 297, 1901 ; Dall and Simpson, Bull. U. S. Fish 

 Com., 1, p. 482, pi. 58, f. 3, 1901 ; Dall, in Matson, U. S. 

 G. S., Prof. Paper 98-L, p. 177, 1916. 

 carneosum Da Costa, 1778, (as Cardium). 

 areolata Menke, Zeitschr, Mai., 1847. 

 Distribution. — North Carolina to Brazil. Apparently not re- 

 ported from the Recent Gulf fauna, but cited by Dr. Dall 

 from the Gulf Pleistocene in a well at Ft. Morgan, Ala., 

 at 100-112 and 169-175 feet, 

 fiexuosa Say, Jour. A. N. S. Phila., 2, p. 303, 1822, (as 

 Tel Una ; Holmes, Post-Pi. Fos. S. C, p. 44, pi. 7, f. 14, 

 i860 ; Hilgard, Rept. Chief of Engineers to Sec. of War, 



