PISHES. 
55 
opposite the anus: a double narrow stripe of deeper blue than the general surface runs 
backwards on each side of the first dorsal fin to opposite its termination, the two parts 
being separated by a broad line of dirty white, which has a narrow dark-coloured line 
along its middle: there are no distinct divisions in the anal and second dorsal fins : the 
air-bladder is simple, and small, and extends from the fauces to the anus; the stomach is 
much shorter than in the preceding species ; the cceca, although numerous, are less so 
than in it ; and the intestine is folded in the same manner.” — C. From the nature of 
the colouring of this fish as described by Mr. Collie, there can be little doubt of 
its constituting a distinct species. Along with the first species of Scomber, there 
occurred in shoals a small species of Clupea, L., “without teeth; with the dorsal fin a 
little before the ventral ; and with the back dark greenish blue, and having one line and 
part of another of rounded black spots on each side nearly on a level with the eye : the 
gill membranes contain six rays, and overlap each other at their lower part; the stomach 
resembles that of the first Scomber ; it has also numerous cceca ; the air-bladder is small 
and tapering.” — C. The other fishes observed at Monterey were a new species of 
Chimcera, Cuv., differing essentially from the Chimcera of the Atlantic, and approaching 
somewhat in the position of its second dorsal fin to the Callorhynchus, Cuv.; a species of 
Torpedo, Dum.; and a Raia. 
At San Bias and Mazatlan several fishes were observed. The first of these is 
a species of Serranus, allied to the Serr. guttatus, Cuv. and Val., but apparently 
constituting a new species: it was “of a dull greyish green beneath, and brownish 
green above, thickly spotted with dark brown and rounded spots about a line and a line 
and a half in diameter: it had several cceca: the air-bladder was strong anteriorly, and 
bound down by tendinous attachments to the sides of the abdomen, without prolongations 
forwards, or any appearance of an aperture; posteriorly, the cavity was bifid.” — C. 
There was also observed a species of Lutjanus?, “above greenish silvery brown, with 
darker cross bands ; beneath white, with a tinge of gold towards the sides : fins golden, 
except the anterior part of the dorsal, which is inclined to brown : cceca five : air-bladder 
simple and capacious.” — C. There was also seen a Polynemus, L., which appears from 
Mr. Collie’s notes, and from a sketch preserved by him, to represent a new species, to 
which we have given the name of Pol. approximans. A Dentex was also seen ; as were 
two species of Caranx, Cuv. In one of these the colour was “a uniform obscure 
yellowish green above, and somewhat silvery beneath” — C.: in the second, the “body 
was silvery, with a bluish colour towards the back, and banded on the upper part with a 
darker hue; the fins were all more or less golden, as was also the lateral line: both 
species possessed simple air-bladders.” — C. Other fishes are mentioned, as a Muyil, 
a Labrusl, and an Exocoetus, apparently allied to the Ex. exiliens, L., but having the 
“ pectorals with large round brown spots. This appears to be the same species as is 
found at Oahu.” — C. The “ Elops Saurus was common at Mazatlan, but not of very 
agreeable taste” — C.: as was also “a large, long and roundish fish, bearing much 
resemblance in the general outline to the Elops, but about ten times as large. As in that 
fish, the maxillaries alone form the lateral parts of the upper jaw. There are no teeth 
