88 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 9 



upward; pores in jaws whitish; margin around eye blackish 



(Panama and Galapagos Islands) 



G. panamensis (Steindachner). 



3b. Outer series of teeth not abruptly retrorse and not serrate; 

 teeth in jaws very long and fanglike; both jaws bent toward 

 each other at the tips ; lips thin, not concealing teeth when gape 

 is closed; no whitish pores, no blackish margin around eye (Co- 

 lombia and Galapagos Islands). . G. octavianus, new species. 



2b. Body color brown with darker markings, marblings or reticula- 

 tions. 

 4a. Tail considerably shorter than head and trunk. 



5a. Maxillary teeth biserial, rest of teeth uniserial; coffee 

 brown, irregularly marbled with darker (Chile). . . 

 G. chilensis (Giinther). 



5b. All teeth uniserial ; brown with irregular darkish venules 

 (Chile) G. modesta (Kaup). 



4b. Tail equal to or longer than head and trunk ; eye in center of 

 gape. 



6a. Head 3.36 to 4.43 in trunk; eye small 15.3 to 15.8 in 

 head ; gill opening larger than diameter of eye ; irregu- 

 larly reticulated with dark over body (Peru). . . . 

 G. wieneri Sauvage. 



6b. Head 2 to 2.66 in trunk ; eye large, 8.6 to 9.6 in head ; 

 gill opening much smaller than eye diameter; dark 

 color in faint, wavy, anastomosing, more or less com- 

 plete crossbands (I ndo-Pacific, Galapagos) 



G. chilospilus Bleeker. 



lb. Body brownish, reticulated, speckled, or banded with both light and 

 dark markings. 



7a. Body pattern spotted or reticulated, but never 

 banded. 

 8a. Dorsal inserted on head in advance of gill opening. 



9a. Head 3.3 to 3.6 in trunk; eye 10.2 to 13.6 in 

 head; body brown, spotted with pale yellow 

 spots, which are sometimes reduced to mere 

 specks (Mazatlan, Mexico, to Colombia and 

 Galapagos Islands). . G. dovii (Giinther). 



