122 . OSTARIOPHYSI. 
Hab. Pacific Coast of Mexico and Central America : 
Altata in Sinaloa!; Panama! ? 34, 
- Here described from a single specimen from Panama (Dow), 280 mm. in total 
length. 
Netuma insculpta, Jord. & Gilb. (Jord. & Everm, Bull. U.S. Nat. Mus. xlvii. 1900, 
p. 2765), from Panama, is evidently very closely allied to G. kessleri and may be 
identical with it. 
5. Galeichthys platypogon. (Tab. XVII. fig. 1 and Tab. XIX. fig. 5.) 
Arius platypogon, Ginth. Cat. Fish. v. p. 147 (1864) *; Steind. Sitzungsb. Ak. Wien, Ixxii. 1876, 
p. 567°. 
Netuma platypogon, Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 1900, p. 2767°; Gilb. & Starks, 
Mem. Calif. Ac. Sci. iv. 1904, p. 28%. 
Depth of body 5 to 6 in the length, length of head 3} to 47. Breadth of head about 1j in its length, 
diameter of eye 5 to 6. Fontanel produced backwards into a groove which reaches the parieto-occipital ; 
occipital process with a keel, usually longer than broad, subtriangular, with straight sides and truncated 
apex; dorsal shield small, subcrescentic. Width of mouth 3 the width of head; pramaxillary band of 
teeth 4 to 5 times as long as broad; vomerine, palatine, and pterygoid patches of teeth sometimes separate, 
sometimes forming a continuous band, the rather narrow vomerine strip connecting the large subtriangular 
palato-pterygoid patches. Maxillary barbel extending to base or middle of pectoral. About 10 gill- 
rakers on the lower part of the anterior arch. Dorsal 1 7; spine about ? the length of head; adipose 
tin shorter than the dorsal. Anal 18, Pectoral spine ? to + the length of head, weakly serrated. 
Hab. Pacific Coast from Lower California to Peru: 
Lower California? ; Mazatlan in Mexico®; San José in Guatemala!; Panama?; 
Peru °. 
Here described from the types of the species from San José (Godman & Salvin), and 
a specimen from Mazatlan (Jordan), five examples measuring from 150 to 240 mm. in 
total length. 
6. Galeichthys assimilis. (lab. XVI. fig. 2 and Tab. XIX. fig. 4.) 
Arius assimilis, Giinth. Cat. Fish. v. p. 146 (1864) °. 
Depth of body 5 in the length, length of head 33. Breadth of head 13 in its length, diameter of eye 7. 
Fontanel not produced backwards into a groove ; occipital process with a feeble keel, broader than long, 
subtriangular, with truncated apex and straight sides ; dorsal shield subcrescentic, larger than in related 
species, its length in the middle line equal to the breadth of the posterior extremity of the occipital 
process. Width of mouth slightly more than 4 the width of head; premaxillary band of teeth 5 times 
as long as broad ; vomerine patches of teeth separate, continuous with the larger club-shaped palatine 
patches, Maxillary barbel nearly reaching the base of pectoral. 11 gill-rakers on the lower part of the 
anterior arch. Dorsal 17; spine 2 the length of head; adipose fin nearly as long as the dorsal. 
oO 
Anal 19. Pectoral spine 2 the length of head, with the inner edge rather strongly serrated. 
Hab. Guaremata, Lake Yzabal1 (Godman & Salvin). 
Here described from the type, a specimen measuring 300 mm. in total length. 
