7258

• UCREFRP Catalog Number: 7258
• Author: Rosenfeld, M. J.
• Title: Morphometry in Chubs of the Genus
• USFW Year: 1986.
• Copyright Material: NO

Figure 1. Measurements taken from photographs of Colorado River
chubs using a digitizer. Numbers de~e distance measures as
follows: (1) standard length; (2) mouth length; (3) pre-orbital
length; (4) anteriormost edge of orbit to occiput; (5) snout to
occiput; (6) occiput to dorsal fin base origin; (7) posterior tip
of mouth to pelvic fin base; (8) pectoral fin length; (9) occiput
to ,dorsalmost part of opercular opening; (10) anal fin base; (11)
posteriormost part of dorsal fin base to posteriormost part of
anal fin base; (12) lea6t depth of the caudal peduncle; (13)
caudal fork length; (14) anteriormost edge of orbit to posterior
tip of mouth; (15) anteriormost edge of orbit to dorsalmost part
of opercular opening; (16) posterior tip of mouth to dorsalmost
part of opercular opening; (17) posterior tip of mouth to
pectoral fin base; (18) dorsal most part of opercular opening to
pectoral fin base; (19) dorsalmost part of opercular opening to
dorsal fin base origin; (20) pectoral fin base to anal fin base
origin; (21) dorsalmost part of opercular opening to pelvic fin
base; (22) pectoral fin base to pelvic fin base; (23) dorsal fin
base origin to pelvic fin base; (24) dorsal fin base; (25) dorsal
fin base origin to anal fin base origin; (26) pelvic fin origin
t~ posteriormost part of dorsal fin base; (27) pelvic fin origin
to anal fin origin; (28) posteriormost part of dorsal fin base to
posteriormost part of anal fin base; (29) dorsal length of caudal
peduncle; (30) ventral length of caudal peduncle; (31) anterior-
most edge of orbit to pectoral fin base.