398 CALIFORNIA ACADEMY OF SCIENCES. 26 



p/atypogon has the sides of belly much soiled by dark 

 specks. 



26. Galeichthys azureus Jordan & Williams, n. sp. 

 Bagre Azul. Plate xxvii. 



Head 3^ ; width of head 4I, depth 9. Length from 

 tip of snout to tip of upper lobe of caudal fin 19% inches. 

 D. I, 7: P. I, 10. A. 4, 14. Gill rakers 6+13. 



Body robust, its width anteriorly greater than its depth; 

 caudal peduncle short, stout; distance from end of anal 

 fin to base of median caudal rays about one-half length of 

 head. Head flat, very broad; its depth at posterior an- 

 gle of jaw about one -half its width; interorbital region 

 flat, smooth anteriorly and granulated posteriorly; fonta- 

 nelle almost obsolete, wide anteriorly and ending in a 

 short groove posteriorly at a point one-half distance from 

 tip of snout to posterior end of occipital process ; top of 

 head, occipital process and dorsal shield finely granular, 

 granulations mostly arranged in radiating striae and extend- 

 ing forward to a line with the pupils, nostrils very large 

 and close together; posterior one with a broad valve. 



Occipital process pentagonal, its length 4^ in head, 

 about as long as wide, with a very low ridge: dorsal 

 shield crescent shaped with points extending back on 

 each side of fin, its median length about one -half the 

 length of its side. Eye small, about 9 in head; inter- 

 orbital width almost 2 in head ; snout 3 in head ; breadth 

 of mouth 2 T % in head. 



Maxillary barbel slender, thick at base, if in head; 

 outer mental barbel reaches to posterior angle of jaw, 

 about 2f in head; inner mental barbel about 4 in head. 



Teeth all villiform; premaxillary band narrow, about 

 one-eighth as wide as long, vomerine and palatine bands 

 of teeth fully confluent on each side, forming together a 

 crescent -shaped patch, narrowly divided on the median 



