i 9 4i CATALOGUE OF FISHES OF TORTUGAS 285 



series." To this I may add that the anterior teeth in the lower jaw in 3 large 

 specimens examined are compressed, incisors, and decidedly broader than those 

 opposite them in the upper jaw, which are scarcely compressed, the rest of the 

 teeth being pointed. 



Concerning the color Dr. Longley said, "Dark, nearly black, the margins of 

 the dorsal and anal narrowly white; black streaks back of eye in largest speci- 

 men; disk pale." Elsewhere in his notes he said, "Quite pale; postocular fold 

 rosy." In preserved specimens the color also varies from pale to nearly black. The 

 caudal has a pale margin like the dorsal and anal. 



Middle Atlantic states to Florida. S. F. H. 



Family TRIACANTHIDAE 



Triacanthodes Bleeker 



Triacanthodes Bleeker, Act. Soc. sci. Indo-Neerl., vol. 3, 1858, p. 37 {Triacanthus anomalus 



Schlegel). 

 Paratriacanthodes Fowler, Proc. Acad. Nat. Sci. Philadelphia, vol. 85, 1934, p. 362 (P. 



retrospinis Fowler). 



With the discovery of new species, Paratriacanthodes Fowler seems scarcely 

 distinct from Triacanthodes Bleeker, with which it is here merged. 



Triacanthodes anomalus (Schlegel), the genotype, in each jaw near the sym- 

 physis has a pair of teeth inside the main series. These are mentioned in the 

 original description of the species and are well and symmetrically developed in 

 3 Japanese specimens examined. Of 19 specimens of T . aethiops Alcock, from 

 the Philippines, 7 have a complete complement of supplementary teeth, 2 lack 

 a single tooth, 2 have a lower pair only, 3 have a single lower tooth, 1 a single 

 upper, and 4 none at all. The type of Paratriacanthodes retrospinis has a single 

 supernumerary tooth in the lower jaw; 3 other specimens have none. The type 

 of P. herrei Myers (Smithsonian Misc. Coll., vol. 91, no. 9, 1934, p. 9) and 2 other 

 specimens also have none. There appears, therefore, to be intergradation between 

 the two genera in regard to dentition. 



In addition to its strong spine, the ventral fin in T. anomalus and T. aethiops 

 has 2 rays, the homologues of which P. retrospinis and P. herrei show at least 

 at times in a reduced state. In T. lineatus the 2 are present, the 2d adnate to the 

 side. An accessory pair of teeth is usually present in each jaw. The gill opening 

 and pseudobranchae are limited ventrally as in the two species of Paratriacan- 

 thodes. W. H. L. 



Triacanthodes lineatus Longley 



Triacanthodes lineatus Longley, Carnegie Inst. Wash. Year Rook No. 34, 1935, p. 88— 

 Tortugas, Florida. Longley and Hildebrand, Carnegie Inst. Wash. Pub. 517, 1940, p. 276, 

 fig. 25. 



Triacanthodes zebra Nichols and Firth, Amer. Mus. Nov., No. 883, 1936, p. 2, fig. 1 — 

 off Cape Henry, Virginia. 



