GALEICHTnTS. 11^1 



teeth, about 6 times as long as broad ; teeth on the palate villiform, in the adult forming a continuous 

 band, the rather narrow vomerine strip connecting the large subtriangular palato-pterygoid patches. 

 Maxillary barbel about reaching the base of pectoral. 10 gill-rakers on the lower part of the anterior 

 arch. Dorsal I 7 ; spine about | the length of head ; adipose fin about as long as the dorsal. Anal 

 17-18. Pectoral spine about | the length of head, with tuberculated or weakly serrated edges. 



Hah. Pacific Coast of Mexico and Central America, from Mazatlan to Panama : 

 Mazatlan ■* and Altata ^ in Sinaloa ; Panama ^ ^ *. 



Here described from two specimens from Mazatlan and Panama {Jordan), 260 and 

 420 mm. in total length. 



3. Galeichthys planiceps. 



Arius planiceps, Steind. Sitzungsb. Ak. Wien, Ixxii. 1876, p. 576, t. 4\ 



Netuma planiceps, Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 1900, p. 2766 " ; Gilb. & Starks, Mem. 



Calif. Ac. Sci. iv. 1901., p. 27 \ 

 Netuma oscula (Jord. & Gilb.), Jord. & Everm. t. c. p. 2768 ' ; Gilb. & Starks, t. c. p. 28'. 



Depth of body about 5 in the length, length of head 3| to 4i. Breadth of head li to 1| in the length, 

 diameter of eye 6j to 8. Fontanel produced backwards into a feeble groove, which does not extend to 

 the parieto-occipital ; occipital process with a keel, longer than broad, truncated posteriorly, and with 

 the sides straight ; dorsal shield small, subcrescentic. Width of mouth ^ the width of head ; praj- 

 maxillary band of teeth .3| to 4| times as long as broad ; teeth on the palate villiform, the vomerine 

 patches continuous or subcontinuous with each other and with the large subtriangular palato-pterygoid 

 patches. Maxillary barbel nearly reaching the base of jiectoral. 9 or 10 gill-rakers on the lower part 

 of the anterior arch. Dorsal 1 7 ; spine f to 4 the length of head ; adipose fin a little longer than the 

 dorsal. Anal 18-19. Pectoral spine f to A the length of head, with tuberculated or weakly serrated 

 edges. 



Hah. Pacific Coast of Mexico and Central America : 

 Altata in Sinaloa ^ ; Panama i ^ 3 4 5_ 



Here described from four specimens from Panama {Jordan), 220 to 280 mm. in total 

 length. 



4, Galeichthys kessleri. 



Arius kessleri, Steind. Sitzungsb. Ak. M^ien, Ixxii. 1876, p. 574, t. 5 \ 



Netuma kessleri, Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 1900, p. 2765- ; Gilb. & Starks, Mem, 



Calif. Ac. Sci. iv. 1904, p. 26 \ 

 Netuma elattura (Jord. & Gilb.), Jord. & Everm. t. c. p. 2769*. 



Depth of body 5Jr in the length, length of head 3|. Breadth of head 1^ in its length, diameter of eye 7,. 

 Fontanel produced backwards into a feeble groove, which does not reach the parieto-occipital ; occipital 

 process with a keel, rather broader than long, subtriangular, posteriorly rounded, and with the sides 

 slightly concave ; dorsal shield small, subcrescentic. Width of mouth nearly j the width of head ; 

 prremasillary band of teeth G times as long as broad ; vomerine, palatine, and pterygoid patches of teeth 

 present, separate or subcontinuous. Maxillary barbel reaching basal part of pectoral. 8 gill-rakers on 

 the lower part of the anterior arch. Dorsal I 7 ; spine J the length of head ; adipose fin a little longer 

 than the dorsal. Anal 19. Pectoral spino | the length of head, weakly serrated. 



BIOL. CENTR.-AMEK., Pisces, July 1907. E 



