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<br />'-"1 f I "1
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<br />PLECTOSPO~DYLI-CYPHHnDAE-GILA GI{AHAl\lII, 665
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<br />GiLA GR.ACILIS, Bd. & Gir.
<br />
<br />.
<br />
<br />GiZa gracilis, BD. & Gm., Proc. Acad. Nat. Sci. Phila., vi, 1853, 369.-lid., Sitgreave's
<br />. Exp. Zuni & Col. Hiv., 1853, Fishes, 151, pl. iii.-GlR., Proc. Acad. Nat.
<br />Sci. Phila., viii, 1856, 205.-BD. & GIR., P. R. R. Rep., x, 1859, Fishes,
<br />287.-Gm., U. S. & Mex. Bound. Sur\"., pt. ii, Ichthyology, 1859, 61.-COPE,
<br />U. S. Geol. SUI'\'. Terr., 1870, 441.
<br />
<br />A number of specimens of this species have been obtained which cor-
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<br />respond very nearly with the (lescription gi.ven by Baird and Girard.
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<br />In two specimens, 570 and 571, from 'Vhite River, Arizona, the teeth
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<br />. formulre are as follows: 4.2-5.2-5.2-5.2. The head enters total length 4.2fl
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<br />times; the eye in length of side of head 6 times; the base of anal fin 9.25
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<br />times of total length including caudal. Radii:D. 2-9; A. 3-9; C.8-1-10-8-
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<br />1-11; V. 1-9; P.16. This species is intermediate in form between G'ila
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<br />robusta and Gila elegans, aml the scales are smaller than either; is found
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<br />abundant in many of the deep pools of streams of Arizona; is sluggish in
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<br />habits, and may be readily taken by hook baited with almost any sub-
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<br />stance, pork, grasshopper, or even a piece of fish. Many were taken by
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<br />seine also. Are an excellent food fish, flesh being firm, hut so full of bones
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<br />as to render it hazardous to eat without care. . These fi~hes are rxtr.emely
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<br />hostile to the trout (SalJ/lo pleuriticIIs), driving' them and other fishes to the
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<br />shallower and more rapid parts of the streams if they approach them. No
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<br />female taken in roe.
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<br />No,
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<br />1 Locality. II Date. \ . Collector.. \
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<br />\ White River, Ariz...- ._. ..._......... ....~.\' Aug,I2,I873\' H. w.-~:~~aw~- -- ~.
<br />
<br />......do___. ._,' ._" .._. _'_' ,,'_" ...- .--. Aug.23,I873 Do.
<br />
<br />. _ _ _ . . do _ . . _ .... . _ . _ ., .. _ . _. . _ . _ .. . - -. .... .... d) . .. - Do. .
<br />
<br />\
<br />\
<br />
<br />570
<br />606
<br />57I
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<br />GILA GHAHAMIl, Bd. & Gir.
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<br />Gila grahamii, ED. &. Gm" Pl'oc. Acad. Nat. Sci. Phila., vi, 185:3, 389.-Gm., Proc.
<br />Acad. Nat. Sci. Phila., viii, 185G, 205.-Id., U. S. & Mex. Bound. Sur\"., x,
<br />pt. ii, lchtbyolog;y, 1859, 61, pl. xxiv, figs. 7_12.-COPE, U. S. Geol. Surv.
<br />Terr., 1870,441.
<br />
<br />A number of specimens of this beautiful species was secured (luring
<br />
<br />the expedition in different parts of Arizona and New 1\1 exico; notal)ly in
<br />
<br />the White River, near Camp Apache, a branch of the Gna. After an exam-
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