9652

• UCREFRP Catalog Number: 9652
• Author: Jordan, D. S.
• Title: Report of Explorations in Colorado and Utah During the Summer of 1889, With An Account of the Fishes Found in Each of the River Basins Examined.
• USFW Year: 1889.
• USFW - Doc Type: \
• Copyright Material: NO

y _ .
RXPLORATIO-?NS IY_-COLORAD{3__AxD UTAH, --- __; - _ - 27 -= - _ -
r. -- -
4- deptb,,41; D. 12; A. 7. Scales 16-So to 83-I3
- ire elcna to than in X. cypho of the same size, the form resembling" that
f ?ntt sh above, narrower- and less depressed- 1aa in X. cypho, the
t than
in X. eypho, projecting considerably beyond the small month;
all, but rather larger and more coarsely tuberculate than in X. eypho,
h three-rows of papill--, the lower deeply incised.
hump, formed by the expanded interneurais, much lower than in X.
forming a sharp keel. This does not extend forward to the nape, there
_ bet tr thirteen scales before it. Surface of nuchal keel scaly.
` x din bead; snout, ?j; interorbital space, 2j. Scales smaller than in X.
VAo
e
_dll anteriorly, growing larger backward; breast- nakecl.;_caucial pedanele --
_
slea fi atenc?erer than in X. cypho, its least depth I j to its length and 33 in
hea&. 'adal fin large, deeply forked, a little longer than head. Dorsal lower than
in x the longest ray, 1- in head; base of fin, 11. Pectoral, is in bead, not
-entrals the latter to vent.
iish above, pale below. Peritoneum black.
46et l _S. National Museum. - --
delphilius (Cope). Blue-ktad Sucker.
agpecialls near the mountains. Specimens taken in Eagle River, Gun-
'G De tar Uncompabgre River, Rio de lag Animas Perdidas, and Rio
- P4 e&-reaches a length of about a foot andiis_ well characterized by
_ anc itslarge lip's. Many die in the rivers after spawning.
ash 4lit:e, or gray; lower fine dull orange; several round dashes of
to line, forming an interrupted red band.. Scales 96 to 105.
Bsrrd"° Girard.) Round-lail.
` on at the foot of the mountains; replaced by Gila elegans in the
Civet si Pound in the Uncompahgre, and in the Gunnison at Delta.
es, of Gila are very similar to each other and are probably reducible to
tbres, A. no, G..robusta, and G. seininuda. The last-mentioned I have not seen.
00piiinens from the Gunnison evidently correspond to Gila robusta. Gila yra-
AOiji B• & a,-seems. to be the same. I can not distinguish Gila af'inis Abbott from
M6 ta,_. This species has been reported from the Kansas and the Platte, but the
types doubtless came from Green River, as no recent collectors have found any species
of tbt8 ape. anywhere except in the basin of the Colorado and Gila Rivers. Gila
.B•. &G. is not evidently different from G. robusta. Gila nacreta Cope, from
e` roft ' _ -Wyoming, is evidently the young of Gila robusta. Dr. Gilbert has
peudently similar conclusions as to the synonymy of these species.
-data reaches a length of more than a foot. It is full of small bones and
relde as worthless for food. The males in life have the lower fins and lower
aide of ;h'sad red and there is a vertical dash of red on the cheeks. Scales 79 to
Inthe: ht@ah line, those above and below smaller.
S. calla Baird
& Girard. Bony toil.
OtIOL
meu taken in the Gunnison at Delta; five in the Green River. Appar-
ea;slpnp_ nding the streams so far as the preceding.
COmlUiog specimens of similar size, Gila elegans has a higher nape and back,
- more
depresh?1 head, slenderer caudal peduncle, larger tins, and smaller scales on