GILBERT: FISHES OF THE SUBGENUS LUXILUS


 TABLE 1

 Comparison of Notropis coccogenis and Notropis zonistius

Character Notropis coccogenis Notropis zonistius


Position of band
on dorsal fin



Color of dorsal
band

Caudal spot

Black border on
distal margin of
caudal fin

Red bar on side
of head


Nuptial tubercles
on top of head
and back

Body form



Angle of mouth to
top of head

Number of
vertebrae

Maximum length
of males


Confined to posterior part
of fin; almost parallels distal
margin


Black at all ages


Absent

Present



Prominent; situated at mar-
gin of opercle and pre-
opercle
Absent


Attenuate and terete



Usually 49 to 538


40 to 42; usually 41


Not confined to posterior
part of fin; slopes obliquely
forward and intersects lower
third of anterior margin

Orange-red in young; black
in adults

Present

Absent



Not prominent (often ab-
sent); situated on cheek


Present


Deep and compressed



Usually 57 to 61"


38 to 40; usually 89


Ca. 115 mm.


Ca. 85 mm.