FISHES OF COZUMEL, YUCATAN. 
203 
D. IX, 12; A. Ill, 12; scales 2-10-27. The lateral line pierces nineteen scales, 
the nineteenth scale being under the interspace between the eighth and ninth ray of 
the dorsal. 
In spirits the general color is light yellowish -brown, most pronounced on the 
cheek. The well-defined bluish lines which are usually so noticeable in X.vermiculatus 
are replaced in this example by numerous irregular and crooked very narrow brownish 
streaks. The dorsal fin at present is uniform pale in color, without mottlings of any 
kind. The anal is pale, excejit along its margin, which has numerous very narrow 
dark streaks nearly at right angles with the direction of the rays, besides some vague 
pearly mottlings. The caudal has seven or eight very narrow dark bands. 
It is proper to state that another example, which should probably be referred to 
X. psittacus, catalogue No. 29972, 200 millimeters in length, taken at Charleston, 
S. C., by Mr. O. C. Leslie, is intermediate between the Pensacola example and Poey’s 
type of X. vermiculatus. The length of the eye in this example is contained nearly 
three times in the least height of the preorbital, and there is only one series of scales 
below the orbit. The lateral line also pierces scales to the twentieth, and is under 
the tenth ray of the dorsal. 
25. Pomacentrus leucostictus Miill. & Troscli. 
Three specimens, catalogue No. 37061, were taken in a tide-pool January 28. 
Length 1 to 2J inches. 
26. Glyphidodon saxatilis (L.). 
Numerous individuals, catalogue Nos. 370G3, 37069, and 37084 were obtained by 
seining. 
27. Gerres harengulus (Goode & Beau). 
37067. ( 2 specimens.) January 24, 1885. Seine. 
37068. (10 specimens. ) January 29, 1885. Seine. 
37085. ( 5 specimens.) January 27, 1885. Seine. 
The smallest of the above examples is If inches long, and the largest 6 inches. 
The species is abundant, and was found wherever we hauled the seine. 
I have compared harengulus with gracilis of the Pacific coast, and can not at pres- 
ent believe that the two are identical. 
28. Gerres lefroyi Goode. 
This species was found only at San Miguel, January 24. Two individuals. No. 
37066, were seined. These are 6 inches and 7f inches long, respectively. 
29. Gerres zebra Miill. & Trosch. 
Only two specimens of 6. zebra were obtained. The larger one. No. 37131, was 
seined January 27, near the harbor lagoon. It is Hi inches long. The other. No. 
37118, was caught with a hook, in the same lagoon, January 28. It is 8 inches long. 
Both of these examples still show the dark bauds, seven or eight in number, on the 
sides. 
30. Pomacanthus aureus (Bloch). 
One very young individual, catalogue No. 37064, one-half inch long, was taken 
in a tide-pool January 28. 
