84 
BULLETIN OF THE BUREAU OF FISHERIES 
In addition to the characters already mentioned, other important specific 
differences are set forth in the following comparative table in parallel columns. 
Because Lutjanus carnpechanus has nearly the same counts of scales and also fin 
rays as L. analis, the common muttonfish, and the two species are apt to be con- 
fused by a careless observer, the distinguishing characters of the last-mentioned 
species are included in the table. For this purpose we had a specimen 650 milli- 
meters long, obtained in the Key West fish market. Another species which is 
closely related is the silk snapper, commonly called “ pago de lo alto ” in Cuba. 
When fresh, this last species apparently may readily be distinguished by the bright 
yellow color of the eye. In a comparative study of this kind it would have been 
advantageous, in order to understand the relationship, to have included this species. 
Unfortunately, however, no specimens are available for comparison. 
L. BLACKFORDII 
Head rather large, 2.77 to 2.80 
in length. 
Snout medium, 2.34 to 2.40 in 
head, subequal to maxillary. 
Mouth rather large. 
Maxillary 2.40 to 2.43 in head, 
extending to a vertical 
slightly in front of eye. 
Eye rather small, 6.71 to 6.85 
in head, 2.85 to 2.86 in snout. 
Interopercular knob feebly de- 
veloped. 
Body rather deep, depth 2.57 
to 2.61 in length. 
Teeth on vomer strong, in a 
comparatively large, some- 
what anchor-shaped patch. 
9 developed gill rakers on lower 
limb of anterior arch; 2 
long ones on upper limb at 
angle. 
Exposed portions of scales on 
middle of sides, in front, 
about 1^5 as high as exposed 
parts of scales situated on 
middle of sides and over the 
anal fin. 
58 to 63 oblique rows of scale s 
above the 1 . 1 . (counting the 
rows running upward and 
backward) . 
7 scales between origin of 
dorsal and 1 . 1 ., counting 
downward and forward. 
14 scales between origin of 
anal and 1 . 1 ., counting up- 
ward and backward. 
L. CAMPECHANUS 
Head rather small, 3.11 in 
length. 
Snout short and blunt, 2.64 
in the short head, 0.91 as 
long as maxillary. 
Mouth rather large. 
Maxillary 2.39 in head, ex- 
tending to a vertical through 
anterior margin of eye. 
Eye rather large, 5.36 in head, 
2.03 in snout. 
Interopercular knob obsolete. 
Body more slender, depth 2.82 
in length. 
Teeth on vomer strong, in a 
comparatively large, some- 
what anchor-shaped patch. 
11 developed gill rakers on 
lower limb of anterior arch; 
2 long ones on upper limb at 
angle. 
Exposed portions of scales on 
middle of sides, in front, not 
much greater in height than 
exposed parts of scales situ- 
ated on middle of sides and 
over the anal fin. 
69 oblique rows of scales above 
the 1 . 1 . 
8 scales between origin of 
dorsal and 1 . 1 . 
15 scales between origin of 
anal and 1 . 1 . 
L. ANALIS 
Head medium, 2.94 in length. 
Snout long, 1.97 in head, 1.34 
as long as maxillary. 
Mouth small. 
Maxillary short, 2.64 in head, 
extending to a vertical nearly 
an eye’s diameter in front of 
anterior margin of eye. 
Eye small, 7.0 in head, 3.56 in 
snout. 
Interopercular knob rather 
well developed. 
Body rather slender, depth 2.78 
in length. 
Teeth on vomer weaker, in a 
narrow, somewhat rounded 
band in front. 
8 developed gill rakers on lower 
limb of anterior arch; only 1 
long one on upper limb at 
angle. 
Exposed portions of scales on 
middle of sides, in front, not 
much greater in height than 
exposed parts of scales situ- 
ated on middle of sides and 
over the anal fin. 
68 oblique rows of scales above 
the 1 . 1 . 
8 scales between origin of 
dorsal and 1 . 1 . 
15 scales between origin of 
anal and 1 . 1 . 
