23 FISHES OF SINALOA. 395 
of this condition, and that the species referred to it should 
be arranged in other groups. 
As the dentition of the typical species of Galezchthys 
agrees in essential respects with that of /Zexanematichthys, 
we unite the two groups under the earlier name, Ga/ezch- 
thys. 
25. Galeichthys gilberti Jordan & Williams, n. sp. 
BaAGRE Bianco. Plate xxvi. 
Extremely abundant in the upper part of the Astillero, 
along sandy bottoms, exceeding by far in numbers all 
other cat fishes. Also found by Gilbert at Mazatlan, 
whence it was erroneously recorded by Jordan & Gilbert 
as Arius assimil7s Giinther. Large numbers of this 
species are left on the beach after seining, and the various 
sea birds, pelicans, man-of-war birds, gulls and the like, 
come down to take possession of them. In two cases 
specimens of this cat-fish were swallowed by pelicans; 
the spines were erected after the fish was partly engorged, 
and these spines entering the skin of the sack of the 
pelican, made it impossible for the bird to swallow them 
or to dislodge them. Considerable numbers of pelicans 
are doubtless destroyed every year by attempting to 
swallow living cat-fish which have been left by the fisher- 
men. 
The following description is essentially that of Jordan 
& Gilbert, Bull. U. S. Nat. Mus., 1882, under the name 
of Arzzzs asstmilis. The type of that description, 29,213 
U.S. N. M., from Mazatlan, coll., Gilbert, may be taken 
as the special type of the species, numerous co-types 
(numbered 1666, 1667 and 1668, L.S. Jr. Mus.), having 
been sent by us to different museums: 
ead, 3, to 4;\ width of head;,5+: depth,j5;. D..1.:7; 
AoA EA. 
