117 FISHES OF SINALOA. 489 
largely pale blue, especially toward the tail; faint traces 
of numerous dark cross-bands.. Fins dusky olive, the 
pectoral and first dorsal paler, base of pectoral dusky. 
itvee No. ro56..S.. jr, Univ. Mus: 
190. Pachynathus capistratus (Shaw). CocuHeE. 
Common in rocky places about the islands of the Ven 
ados, Creston and Isla Blanca; many specimens obtained. 
This species was found by Gilbert at Mazatlan, and by 
Steindachner at Cape San Lucas. We have thus far 
been unable to find any distinction between the American 
form and the common East Indian species, to which the 
name caprstratus was first given. ‘Two markedly differ- 
ent types of coloration were obtained, supposed by us to 
be of the two sexes, since no other difference except 
that of coloration is noticeable. In all specimens ob- 
tained, however, the sexual organs were so immature 
that the sexes could not be distinguished thereby. 
Specimens supposed to be female dull olive with darker 
clouds; no yellow on posterior parts which are scarcely 
paler behind; fins all plain olive blackish; streak behind 
mouth light bluish, very faint, soon fading after death: 
lower lip blue, then golden, then a blue ring, then yel- 
low, then bluish; upper lip livid, bluish above. 
Others supposed to be male are in life dark olive 
clouded with darker; posterior part of body deep yellow, 
below median line; fins blackish; first dorsal bright olive 
vellow on membranes; green on caudal membranes, the 
rays black. Anal reddish. Streak behind mouth bright 
red in one specimen, whitish in another. Upper lip livid 
blue then orange, then golden, then livid blue or purplish, 
then orange, then crimson, then dark. 
Still other specimens were marked with whitish shades 
instead of red. 
2p SER., VOL. V. (32)) August 15, 1895. 
