2. SALARIAS QUADRICORNIS. _Cuv. et Val.?_

Salarias quadricornis, _Cuv. et Val._ Hist. des Poiss. tom. xi. p. 243.

pl. 329.

Mr. Darwin’s collection contains a species of _Salarias_ so closely

resembling the _S. quadricornis_ of Cuvier and Valenciennes, that I dare

not describe it as distinct. Yet it offers some slight differences as

follows:

The profile, instead of being merely vertical, presents a rounded and

projecting front between the eyes, advancing further than the mouth

(as in the _S. gibbifrons_, Cuv. et Val.) The filamentous appendages

are similar, but the superciliary ones are shorter than the diameter

of the eye: the palmated ones at the nostrils consist of six or seven

bristles. The occipital crest is hardly so much elevated; its height

being not more than one-sixth or one-seventh the height of the head,

and only one-third its own length. The height of the dorsal equals at

least half the depth of the body; the depth of the notch above the

thirteenth spinous ray is rather more than half its height. The

fin-ray formula is—

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