36 CALIFORNIA ACADEMY OF SCIENCES. 



Pectoral spine depressed, 1-^ in the head, short tuber- 

 cles on its outer edge; the pectoral filament reaches 

 beyond the middle of the anal fin. 



Metallic blue above, lower parts silvery. Anal with 

 a large oval dusky area in front; lower caudal lobe lighter. 



Head 4|; depth 4|; D. I, 7; A. 28-30. 



Four specimens .28-. 44 m. Panama. Dr. Johnes. 

 21. Ailurichthys marinus. 



Silurus bagre Bloch, i^late 365 (notL.); Bloch & Schueider, Sj'st. 

 Ichthyol. 377, 1801. 



Silurus marinus Mitchell, Trans. Lit. & Phil. Soc. N. Y. i, 433, 1814. 



Galeichthys marinus DeKay, Fish. New York, 178, pi. 37, fig. 118, 

 1814 (New York). 



Ailurichthys marinus Baird & Girard, Proc. Acad. Nat. Sci. Philad. 

 1854, 26; Girard, U. S. and Mexican Boundary Survey 31, pi. 14 

 (Indianola, Tex.); Eigenni. & Eigenni. Proc. Calif. Acad. Sci. 

 2d Ser. vol i, 1888, 148 (Kio de Janeiro; Para; Bay of Balaxy; 

 Mobile Bay; Pernambuco; Victoria). 



jElurichthys marinus Giinther, Cat. Fish. Brit. Mus. v, 178, 1864 

 (North America); Goode, Proc. U. S. Nat. Mus. 1879, 119 (St. 

 Johns Kiver, Florida); Steindachner Flussfische Siidamerika's, 

 i, 10, 1879 (Orinoco near Ciudad); Jordan and Gilbert, Proc. U. 

 S. Nat. Mus. 1882, 246 (abundant from Pensacola, Florida, to 

 Galveston, Texas); id. ib. 584 (Charleston, S. C); Jordan, Proc. 

 U. S. Nat. Mus. 18S3, 100 (Key West, Florida); Jordan & Gil- 

 bert, Synopsis Fish. North America, 111, 1883 (Cape Cod to 

 Mexico); Jordan, Cat. Fish. North America, 16, 1885 (name only); 

 Jordan, Proc. U. S. Nat. Mus. 1886, 26 (Beaufort, N. C.) 



Felichthys Jilamentosus Swainson, Fishes, ii, 305, 1837 (based on Bloch 

 plate 365). 



Pimelodus Jilamentosus Bleeker, Silures de Suriname 67, 1864 (Suri- 

 nam). 



Galeichthys parrce Cuv. & Val. Hist. Nat. Poiss. xv, 33, 1840 (New 

 York; Charleston; New Orleans; Eio Janeiro); Castelnau, Anim. 

 Amer. Sud, Poiss. 37, 1855 (Bahia); Hyrtle, Denk. Ak. Wien, 

 xvi, 1859, 17 (vertebra 13+7+30). 



Galeichthys blochii Cuv. & Val. Hist. Nat. Poiss. xv, 44, 1840 

 (Bahia). 



Galeichthys bahiensis Cas};elnau, Anim. Amer. Sud, 37, pi. xviii, fig. 

 1, 1855 (Bahia). 



^lurichthys longispinis Giinther, Cat. Fish. Brit. Mus. v, 178, 1864 

 (Mexico; South America); Jordan, Proc. U. S. Nat. Mus. 1886, 

 559 (name only). 



Habitat: East coast of America from Cape Cod to Eio de Janeiro. 



