TABLE 3
Comparison between forms of the Notropis cornutus species group


Character


Anterior dorso-lateral
scales
Circumferential scales
Sum of anterior dorso-
lateral and circumfer-
ential scales
Caudal peduncle
scales
Parallel stripes on
anterior dorso-lateral
part of back
Crescent-shaped bars
on side of body
Reds on body and fins
of breeding males

Color of dorsum
Nuptial tubercles
present in:
Appearance of nuptial
tubercles on upper
part of head
Body form


N. cornutus


(16) 18 to 24 (30)

(26) 30 to 35 (39)
(42) 48 to 59 (67)


(13) 15 or 16 (18);
usually 16
Absent


Present

Present and
widespread

Olive-brown
Males only

Straight at tips


Deep and
compressed


Maximum size of males Ca. 175 mm.


N. albeolus


(15) 17 to 20 (23)

(24) 26 to 30 (33)
(41) 43 to 50 (55)


(13) 15 or 16 (17)

Absent


Usually absent

Usually absent;
occasional on snout
and fins
Olive-green
Males only

Straight at tips


Usually slender and
terete in north-
ern race; usually
deep and compressed
in southern race
Ca. 130 mm.


N. c. chryso-
cephalus


(13) 14 to 17 (19)

(23) 26 to 29 (32)
(38) 40 to 44 (48)


(12) 15 or 16 (17);
usually 16
Present;
crooked


Present


Present and
widespread

Olive-brown
Males only

Straight at tips


Deep and
compressed



Ca. 175 mm.


N. c. isolepis


(12) 13 or 14 (15)

(23) 24 to 28
(36) 37 to 41 (43)


(14) 15 or 16;
usually 16
Present;
straight


Present


Present and
widespread

Olive-brown
Males only

Straight at tips


Deep and
compressed


Ca. 175 mm. Ca. 90 mm.


N. cerasinus

(14) 15 to 19 (22)

(23) 25 to 28 (30)
(37) 41 to 47 (51)


(12) 13 to 15 (16);
usually 14
Absent


Present

Present and
widespread

Olive-brown
Both sexes

Curved forward
at tips

Deep and
compressed