147 MOLLUSCA OF THE Gui,F OF MEXICO 115 



Distribution. — Massachusetts Bay to Florida. Recent. Type of 

 subgenus Lyrodus Gould/ Gulf coast. — Cedar Keys, Fla. 



Genus XYLOTRYA Leach 

 fimbriata Jeffreys, Syn. Brit. Teredo, Ann. and Mag. Nat. Hist. 



3d ser., 6, p. 126, i860 ; Tryon, Proc. A. N. S. Phila., 13, 



p. 478, '62 ; Gould, Inv. Mass., Binney's ed., p. 34, f. 



361, 1870 ; Dall, Bull. 37, U. S. N. M., p. 74, pi. 59, f. 1, 



'89; List Cameron Sh. , 1906 (MS.); Johnson, Occ. Pa. 



Bost. Soc. N. H., 7, p. 82, 1915. 

 palmulata of Forbes and Hanley, Perkins, and a number of 



other authors ; but not palmulata Lamarck, An. s. Vert., 



2d ed., 6, p. 38 ; nor of Philippi. 

 Distribution. — Rhode Island to the Gulf of Mexico, burrowing 



in wharves and timbers. Gulf coast. — Krrol Isl., West 



Fla. ; Chandeleurs, La. ; Texas, 

 fimbriata variety subaequal is Dall, Proc. U.S. N. M., 6, p. 337, 



1883. 



Distribution. — Cedar Keys, Fla. 

 bipennata (Turton) Jeffreys, Ann. and Mag. Nat. Hist., 3d ser., 



6, p. 126, i860 ; Dall, Bull. 37, U. S. N. M., p. 74, 1889. 

 Distribution.— North Atlantic to St. Vincent, W. I. Gulf 



coast. — West Florida. 



