GALEICHTHYS. 123 
7. Galeichthys guatemalensis. 
Arius guatemalensis, Giinth. Cat. Fish. v. p. 145 (1864) '. 
Galeichthys guatemalensis, Jord. & Everm. Bull. U.S. Nat. Mus, xlvii. 1900, p- 2779’. 
Galeichthys azureus (Jord. & Williams), Jord. & Everm. t. ec. p- 2775, fig. 55°. 
Depth of body 6 in the length, length of head 34. Breadth of head 13 in its length, diameter of eye 63. 
Fontanel not produced backward into a groove; occipital process weakly keeled, considerably broader 
than long, with apex truncated and sides somewhat concave. Width of mouth nearly 2 the width of 
head; premaxillary band of teeth 54 times as long as broad; vomerine patches of teeth separate, 
continuous with the larger club-shaped palatine patches. Maxillary barbel extending to operculum. 
1] gill-rakers on the lower part of the anterior arch. Dorsal I 7; spine 4 the length of head; adipose 
fin shorter than the dorsal, Anal 19. Pectoral spine nearly 3 the length of head, with strongly serrated 
inner edge. 
Hab. Pacific coast of Mexico and Central America: 
Mazatlan ?; Guatemala !. 
Here described from the type, a specimen measuring 260 mm. in total length. 
Giinther’s specimen (0), from Chiapam, belongs to G. cerulescens. 
8. Galeichthys czrulescens. (Tab. XVII. fig. 2 and Tab. XIX. fig. 6.) 
Arius cerulescens, Giinth. Cat. Fish. v. p. 149 (1864) *. 
Galeichthys cerulescens, Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 1900, p. 2776. 
Depth of body 5 to 6 in the length, length of head 33 to 4. Breadth of head 1} to 14 in its length, diameter 
of eye 6 to 8. Fontanel not produced backwards into a groove; occipital process not or but feebly 
keeled, subtriangular, as broad as or a little broader than long, with apex truncated or subtruncated and 
sides nearly straight; dorsal shield small, subcrescentic. Width of mouth 2 to 3 the width of head; 
premaxillary band of teeth 6 times as long as broad ; vomerine patches of teeth oblong or oval, separate, 
continuous or subcontinuous with the palatine patches, which are only a little larger than the vomerine 
ones and of similar form. Maxillary barbel extending to basal part or middle of pectoral. 12 or 13 
gill-rakers on the lower part of the anterior arch. Dorsal 1 7; spine 3 (adult) or 2 (young) the length 
of head ; adipose fin as long as or a little shorter than the dorsal. Anal 16-18. Pectoral spine 2 to 3 
the length of head, with the inner edge moderately or rather strongly serrated, 
Hab. Pacific Coast of Mexico and Guatemala : 
Rio Presidio in Mexico (Forrer); Huamachal! and Chiapam in Guatemala 
(Salvin). 
Here described from six specimens, including the type of the species, measuring 
from 160 to 280 mm. in total length. 
9. Galeichthys lentiginosus. 
Galeichthys lentiginosus (Higenm. & Higenm.), Jord. & Everm. Bull. U.S. Nat. Mus, xlvii. 1900, 
p- 2771*; Gilb. & Starks, Mem. Calif. Ac. Sci. iv. 1904, p. 20%. 
Galeichthys xenauchen (Gilb.), Jord. & Everm. t.c. p. 2777°; Gilb, & Starks, t. c. p. 24, t. 4. 
fig. 7*, 
Depth of body 5 to 6 in the length, length of head 4, Breadth of head 1} in the length, diameter of eye 8 
to 9. Fontanel produced backwards into a feeble groove which does not reach the parieto-occipital ; 
occipital process with a feeble keel, twice as long as broad, scarcely narrowed posteriorly, with straight 
R2 
