146 Mr. A. W. E. O'Shaughnessy on 
head to caudal, two dark streaks from eye to mouth ; fins 
variegated with brown, as in Gobius banana; a brown mark 
on upper part of base of pectoral. 
One specimen in the British-Museum collection, from 
Surinam, 3 inches long. 
Euctenogobius latus, sp. n. 
Deeloa Adel Aat 60: 
io° 
The depth of the body is contained eight times and a half 
in the total length, bemg less than half the length of the 
head, which is very large and broad, its length one fourth 
of the total, its breadth more than half its length and much 
greater than its depth. Muzzle prolonged, broad and flattened 
above, nearly half the length of the head; upper jaw over- 
lapping the lower. ‘Teeth rather stout, in one series only in 
the upper jaw. Eyes small, on the upper surface of the head ; 
their diameter equal to the interorbital space, and one third of 
the length of the snout. Head naked. Scales small in front 
of dorsal, large on the body; thirteen series between dorsal 
and anal. Ventral not reaching to vent ; pectoral longer ; first 
dorsal rather higher than the body and than the second dorsal ; 
caudal rounded, rather more than one sixth of the total length. 
Reddish or yellowish brown, with dark brown spots and varie- 
gations on the sides; fins barred and spotted with dark brown ; 
the second dorsal with regular variegations between the rays ; 
anal grey. 
This species presents a considerable resemblance to Gobius 
banana and G. transandeanus; but the teeth are distinctly 
those of Huctenogobius. We are not told whether Godcus 
dolichocephalus, Cope, Trans. Amer. Phil. Soc. xii. p. 403, 
has the teeth in one or more series in the upper jaw; but 
a comparison with the descriptions of that species and of 
Euctenogobius badius, Gill, Ann. Lye. N. H. New York, vi. 
p. 45, shows that the present species differs considerably from 
both of them. 
One specimen in the collection of the British Museum was 
collected by Dr. Wucherer at Bahia. Length 63 inches. 
Eleotris perniger (2), Cope, Tr. Am. Phil. Soc. (n.s.) xiv. 
1871, p. 473. 
DG Ae Ee alat ss 
A spine at the angle of the preoperculum. Height of body 
one sixth of total length; length of head contained rather 
