92 CALIFORNIA ACADEMY OF SCIENCES. 



first soft ray, little, if any, higher than the spine. Dis- 

 tance of adipose fin from the dorsal 3-3J in the length, 

 the fin longer than high, shorter than the dorsal fin. 



Caudal fin forked, the lobes rounded, 4J in the length. 



Anal little longer than high, the highest ray 2 in the 

 length of the head. 



Ventrals short, lf-2| in head. 



Pectoral spine long and slender, 1flf in the head, 

 outer margin granular, inner margin with short teeth. 



Ashy above, white below. 



Head 3i-3|; depth 5-5|; D. I, 7; A. 20. 



We have examined 15 specimens, the largest measur- 

 ing .29 m. The sexes do not differ externally. Panama. 



63, Tachisurus variolosus. 



Arius variolosus Cuv. & Val. Hist. Nat. Poiss. xv, 107, 1840 (Cay- 

 enne); Giinther, Cat. Fish. Brit. Mus. vol. v, 173, 1864 (copied). 



Oaleichthys variolosus Jordan Proc. U. S. Nat. Mus. 1886, 558 (name 

 only). 



Tachisurus variolosus Eigenm. & Eigenm. Proc. Cal. Acad. Sci. 2d. 

 Ser. vol. i, 1888, 146 (name only). 



Habitat: Cayenne. 



64, Tachisurus multiradiatus, 



Bagrus (?) arioides Kner and Steindachner, SB. Ak. Wiss. Miinch, 



1864, 227 (Kio Bayano, Panama) (not of Cuv. & Val.) 

 Galeichthys arioides Jordan, Proc. U. S. Nat. Mus. 1885, 365 (name 



only). 

 Arius multiradiatus Giinther, Cat. Fish. Brit. Mus, vol. v, 173, 1864 



(copied); Kner & Steindachner, Abhandl. Bayr. Wiss. x, 47, 1865; 



Giinther, Fish. Cent. Am. vi, 1866, 393 (name only). 

 Tachisurus multiradiatus Eigenm. & Eigenm. Proc. Cal. Acad. 2d. 



Ser. Vol. i, 1888, 146 (name only). 

 Habitat: Western slope of Panama. 



65, Tachisurus hypophthalmus, 



Arius hypophthalmus Steindachner, SB. Ak. Wien, Ixxiv, 1876, 



Ichthyol. Beitr. iv, pi. x (Panama); Jordan & Gilbert, Bull. U. 



S. Fish Com. 1882, 53 (Panama). 

 Galeichthys hypophthalmus Jordan, Proc. U. S. Nat. Mus. 1885 (name 



only). 

 Tachisurus hypophthalmus Eigenm. & Eigenm. Proc. Cal. Acad. 2d 



Ser. vol. i, 1888, 146 (name only). 

 Habitat: Panama. 



