137 Mou<usc a of the Gulf of Mexico 105 



stein No. 3 at 1990 to 2045 ; Jennings-Heywood No. 24, 

 1700; No. 27, 1970-1980, No. 29, 1040- 1 96 1 ; Crowley No. 

 25, 1900 to 2650; TecheNo. 1, 1322 to 2074 ; Franklin No. 

 1, 2183 to 2664 feet. Also in the Crowley well near 

 Evangeline, La., at 2000 feet, where it was found with 

 galvestonensis. 



(Rangianella) flexuosa Conrad, Am. Jour. Sci. 38, p. 92, 1839 ; 

 Pr. A. N. S. Phila., 7, p. 31, 1855, Idem, p, 232, for i860 ; 

 Dall, Mon. Genus Gnathodon\ Proc. U. S. N. M., vol. 17, 

 p. 102, pi. 7, f. 3, 6, 1894; Mitchell, List Texas Shells. 

 rostrata Petit, Jour, de Conch. 4, pp. 84, 164, pi. 5, f. 1-3, 

 1853, (as Gnathodon); Prime, Proc. Boston Soc. Nat. Hist. 

 7, p. 348, 1861 ; Conrad, Am. Jour. Conch. 3, suppl. p. 

 30, 1868 ; Dall, Bull. 37, U. S. N. M., p. 62, 1889; 

 Singley, 4th Ann. Rept. Texas, p. 329, 1892. 

 Distribution. — Florida to Vera Cruz, salt water. Pleistocene 

 to Recent. Rare. Gulf coast. — Recent : Point au Fer, 

 La ; Galveston, Texas. Pleistocene : New Orleans pump- 

 ing station No. 7. 



Genus LABIOSA (Schmidt) Moller 

 lineataSay, Jour. A. N. S. Phila., 2, p. 310, 1822, (as Lutraria)\ 

 Dall Bull U. S. N. M. p. 64, '89 ; Nautilus 8, p. 27, '94 ; 

 Tr. W. I. S. 3, p. 906, 1898. 

 nuttallii Reeve, Conch. Icon., Mactra, f. 125, 1854. Not of 

 Conrad. 



recurva Gray, Wood's Ind. Test. Suppl,, f. 2, 1828. 

 papyracea Conrad, Am. Conch., pi. 10; Adams, Genera 

 Moll., 2, p. 386. Not of Lamarck. 

 Distribution. — New Jersey to Sao Paulo, Brazil. Gulf coast. 

 West Fla., Cameron, La., and Texas. 

 (Raeta) canaliculata Say, Jour. A. N. S., Phila., 2, p. 310, 1822, 

 (as Lutraria)\ Reeve, Conch. Icon., Mactra, f. 122, 1854; 

 Holmes, Post-Pi. Fos. S. C, p. 43, pi. 7, f. 13, i860; 

 Dall, Bull. 37, U. S. U. S. , p. 64, '89 ; Singley, 4 th Ann. 

 Rep., Texas, p. 330, '92 ; Dall, Nautilus, 8, p., 28, '94 ; 

 Harris, Bull. Am. Pal. 1, No. 3, p. 94, '95 ; Mitchell, 



