Jordan and Evennann. — Fishes of North America. 3163 
. 1157 (f). CHlROSTOllA LERM.E. Jordan & Snyder. 
HeadS^s; depth 5A; depth of caudal peduncle 3|- in head; eye 5^; snout 
2*; interorbital space 51 ; height of spinous dorsal 41 ; soft dorsal 24 ; anal 
2" ; length of pectoral If; ventrals 3; caudal If; D. IV-11; A. 20; scales 
58-20, 11 between dorsals. Body slender, deei)est part in region of ven- 
trals; caudal peduncle narrow; snout long and pointed; lower jaw 
slightly projecting, hut not enough to include the upper; eye large, nearer 
tip of snout than to posterior edge of opercle, a distance equal to diam- 
eter of orbit, or to width of preorbital space ; cleft of mouth extending to 
a horizontal through lower edge of orbit; lower lip folded over the upper 
at their union ; maxillary extending posteriorly almost to a perpendicular 
from anterior edge of orbit, its distal end angular; teeth large and strong, 
curved backward and inward, arranged in 2 definite rows, those of the 
inner row of the up^Jer jaw and of the outer row of the lower jaw larger, 
none on vomer or palatines ; vertebrae 44. An indefinite lateral line extend- 
ing along body about 10 scales below first dorsal, the pores absent on 
many of the scales; scales crenate, largest along the lateral color-band, 
much smaller between occiput and first dorsal, those immediately pos- 
terior to occiput, minute and very closelj' crowded; a narrow edging of 
similar scales along the gill-openings, extending ventrally to the isthmus; 
scales between dorsals not much reduced in size or crowded together; 
basal half of inter-radial membranes of caudal with scales; first 2 spines 
of dorsal longe.st, third shorter, fourth about f as long as the first; first 
dorsal ray longest, others gradually shorter, edge of fin straight; inser- 
tion of anal on a perpendicular passing through a point half Avay between 
origins of dorsals, first raj’ longest, others successively shorter, last ray 
one-third the length of first ; caudal deeply forked, its tips rather pointed ; 
pectoral pointed, extending beyond origin of ventrals a distance ec^ual to 
diameter of pupil ; ventrals reaching vent. Color in alcohol, light olive, a 
silvery lateral band equal to a scale in width exteuding from upper j>art 
of base of pectoral to base of caudal ; edges of upper scales duskj’ ; a little 
dark color on dorsals, caudal, and pectoral; upper and lower jaws and 
top of head with minute dark dots; uj'per part of eye dark. 
C. lermiv closely resembles C. crijsiallinum. It differs markedly in having 
large teeth, which are arranged in two rows, a shorter lower jaw and a 
larger eye. Jalisco, Mexico. (Jordan & Snyder.) 
Our specimens of C. lernuu are all from the market of Guadalajara. The 
gill-arches and viscera had been removed and the bodies were somewhat 
shnmken. The specimens are said to have come from Laguna do Chapala, 
.Jalisco, Mexico. (Type,Jso. (3159, L, S. Jr. Tbiiv. AIus. Coll. J. O. Snj’der. ) 
Chirostoma lermte, Jordan A: Snyder, Bull. U. .S. I’isb Com. 1899 (1000), ItO, Guadalajara, 
Mexico. 
1157 (tf). nJIROSTOM.V 0€OTL.V\E, Jordan .t .Snyder. 
Head 3^; depth 44; depth of caudal peduncle 3j-in head; ej'c 41^; snout 
2.?; interorbital space 5; height of spinous dorsal 3.4; soft dorsal 24; anal 
2; length of pectoral 1|; ventral 24; caudal 1.1; D. V-12; A. 20; scales 
54-19, 11 between dorsals. Body long, rather slender, deei»est above 
Bull. Xo. 47, pt. 4 IX 
