200 CALlFOBNIA ACADEMY OF SCIENCES 



359- Cyclopsetta querna (Jordan <L- Bolivian). 



Abundant. In adult specimens, 255 mm. long, the colored side is uniform 

 dusky brown on head, body and fins, the fins without dusky blotches. 



The tubes of the lateral line are profusely branched above and below. An 

 intricate network of branching tubes covers the preopercle and the postocular region 

 of the head. The upper eye is distant from profile a distance less than diameter of 

 pupil. The interorbital width in adults equals half the diameter of the eye. 



360. Azevia panamensis (Steindachner) . 



Infrequent; but four specimens secured. 



The scales on the colored side of the body are strongly ctenoid, those of the 

 uncolored side perfectly smooth. 



361. Citharichthys platophrys Gilbert. 



Known from the type only; Albatross Station 2799, Panama Bay, 29^^ 

 fathoms. 



362. Citharichthys gilberti Jenkins d- Evermann. 



Abundant; differing from C. spilopterus in the longer* gill-rakers, which are 

 also more numerous, in the slightly larger scales, and the slightly larger eye. In 

 our specimens, the lateral line traverses 40 to 43 scales. In nine specimens of 

 C. sinlopterus from Havana, there are 45 to 47 scales in the lateral line. Our 

 specimens of gilberti have thirteen or fourteen gill-rakers on horizontal limb of outer 

 arch. Havana specimens of spilopterus have constantly eleven gill-rakers. 



. 363. Etropus crossotus Jordan <t Gilbert. 

 But few seen by us. 



Family SOLEID^. 



364. Achirus klunzingeri (Steindachner) . 



Common in Panama Bay. 



Resembling A. mazatlanus, but differing in the smaller scales, the smaller eye 

 and wider interorbital space, the larger mouth, the increased number of fin-rays, the 

 finer, more numerous cilia (in specimens of equal size), and the more elongate form. 



The color is almost uniform brown on body and fins; in lighter specimens only 

 are the vertical fins faintly mottled or blotched with dusky. Ten to twelve faint 

 dark hair-lines cross the body, often to be made out with extreme difficulty. Young 

 specimens show numerous patches of fine black cilia on head and body, the larger 

 patches arranged in two series nearly midway between the lateral line and the bases 



* By error, Jordan and Evermann (1898, p. 2C8G) state that the gill-rakers in tliis species are nhorter tban in C. spilopteriin. 



