444, Zoological Society :— 
band, those of the outer series larger, somewhat compressed, brown 
at the tip; palate smooth. Opercles scaly; preeopercular margin 
entire. Nostril simple. 
The height of the body is contained three times and one-half in 
the total length, the length of the head four times and two-thirds, 
The interorbital space is convex, and its width rather more than the 
diameter of the eye, which is one-half the length of the snout. There 
are six series of small scales between the preeorbital and the angle of 
the preeoperculum. The dorsal fin and the lateral line commence on 
the same vertical; caudal truncated; the commencement of the anal 
falls vertically below the sixteenth dorsal spine ; the ventral is inserted 
behind the pectoral, and extends on to the vent. Greenish, the 
middle of the body clouded with blackish, in form of indistinct ver- 
tical bands; a round black spot at the root of the caudal; the outer 
parts of the fins blackish. 
This species would be placed in the genus Heros of Heckel. 
_ Hab. Fresh waters of Mexico. 
in. lin. 
BOMB CARMEN SS bb i's ann 4 ash + nicl she Ae fe 
AACUEDE OF $06 DOTY aos os ps inna won ead ee ee 
IPUREOGL NOP TOBA cain sab k amaoucinee 1 6 
Diameter of the 67@ 4 3:0 .05<5,6 nn vo outs 0 32 
CHROMIS FENESTRATA, 0. Sp. 
Dy. A.g. V.1/5. L. lat. 33, LL. transy. 6/13. 
12° 
Mouth narrow, protractile ; teeth of the jaws cardiform, in a short 
band ; those of the outer series larger, somewhat compressed, brown 
at the tip; palate smooth. Opercles scaly ;. preeopercular margin 
entire. Nostril simple. 
The height of the body is contained two and three-fifth times in 
the total length ; the length of the head four times. The interorbital 
space is convex, and its width more than the diameter of the eye, 
which is one-half the length of the snout. There are five series of 
scales between the preeorbital and the angle of the preoperculum. 
The dorsal fin and the lateral line commence on the same vertical ; 
caudal truncated; the commencement of the anal falls vertically 
below the fifteenth dorsal spine; the ventral is inserted behind the 
pectoral and extends on to the anal. Blackish-green, with six black 
vertical bands, crossing a deep black longitudinal band, which runs 
from above the pectoral to the root of the caudal. Vertical and ven- _ 
tral fins blackish, darkest at the base and margins. 
This species would be placed in the genus Heros of Heckel. 
Hab, Rio de la Lana (Mexico). 
in. lin 
Total length. v4... vc ss ws ch snc G eee Pare 3.8 
Length -of the head, «0: +0ch> seemeraner 0 11 
Height of the body... +e.useeweseesseee. & O 
Diameter of the eye...... Sy TAD eae Naa 
