478 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



very broad, sometimes almost wanting:; the flap half or more longer 

 than tin. 1 eye in the adult, much shorter in the young;, its develop- 

 ment subject to great variation. Brilliant blue and orange; the back 

 chiefly blue; the belly entirely orange, the orange on the sides in spots, 

 the blue in wavy vertical streaks; lips blue; cheeks orange, with bright- 

 blue stripes; blue stripes before eye; iris red; soft parts of vertical fins 

 with the rays blue and the membranes orange; veutrals dusky. Head 

 AMthout flap, 3 in length; depth l-2. D. X, 10; A. Ill, 8; scales 5- 

 38-14. L. inches. Michigan to Minnesota, South Carolina, and Mex- 

 ico; very abundant in most streams. One of our most brightly-colored 

 iishes. Extremely variable: the young are often elliptical in form, and 

 the size at "which the characteristic ear-flap is developed varies greatly 

 with different individuals. We have thus far failed to distinguish any 

 tangible varieties. Some Southern specimens have the ear-flap longer 

 (f'ttlla.r); some Northern ones have the scales rather larger (///.sr/v'y^Ms), 

 or the margin of the ear-flap broader than usual (peltasien}, or wanting 

 altogether (tythrochloris). Some Southern specimens (brericrjiti) have a 

 dusky spot on the last rays of dorsal. These characters gradually dis- 

 appear on examination of a large series. 



(Icliflu'lix nifi/ttlotix K'af. Ichth. Oh. 1820,29: Senolift WY/ /<>//'* Jordan. M;tn. Vert. <<!. _>, 

 242: IfhthcliH (inri/n K'af. Idi. Oh. 1820,29, not Labrnx nritn * L. : Lepomis auritua Cope, 

 Jtmrti. Acad. Nat. Sci. Pliila, 18G8, 220: Xciiolix hjtlmn-ltlori* .Ionian, Bull, I'. S. Nat. 

 Mils. -\, -1U: I'<iuiti.f nilida Kirtland, Bust. Jonrn. Nat. Hist. iii. \l~i: I'omotix faUu.r 

 Bainl A: Oiranl, Proc. A.-ad. Nat. Sci. 1'hila. 1>r>4, 24: 1'nmofi* fnlla.r (Sirard, U. S. 

 Pac. R. R. Snrv. Fish. 27: Pomotis rubricauda (Jiintlirr, i. 2:'rJ: I'omotin hr<ric<]>* \\. A 

 (',. I'n.r. A.-ad. Nar, Sci. J'hila. 1-.".:!, 390: 1'oinolix j><>i>< i (Jiranl, 1". S. Tac. I, 1 . I. 1 . Surv. 

 Fish, x, 2<>: rtiiiiotiK Kdiiiiiiiiiiili'iiliix A^ass. AJIKT. .Toiirn. Sci. Arts. !>'>!. :i(l-J: .Xi'iiolix M/;.S 

 Jordan, Bull. U. S. Xat. .Mns. x, 22, not I'viiioHa xolis C. & V. : J'ltmolis rtnir<'.i(t'i-n>ix 

 J!air<l A (Mi-ard, Proc. Acad. Nat. Sci. Pliila. 1854, 24 : AV in>li.-i (inn 'olux .Jordan, Bull. 

 1 . S. Nat. Mas. x, 41 : I'oniotis in^rijilux Agassi/. Anicr. Jonrn. Sci. Arts. 1 -.". 1. "d-J: 

 .\i'nti:< hi'iiTiiil/ix .Jordan, Bull. U. S. Nat. Mns. x, -12: Lcjiontix /'//.s/<* CO]H-, 1'rnc. 

 -. I'hil. Sue. 1'hila. 1-70, 4.'.J; AicKav. 1'ioc. I'. S. Nat. Mns. iv, rtj.) 



ILo BDiar;;aDi:ttcas (Holltr.) McKay. 



y short and deep. Snout shorter than the diameter of the eye, 

 the maxillary extending to the 01 bit. Paired I'ms rather long. Color 

 olixe. \\ilh darker vertical bars; head and body \\iili numerous bluish- 

 green spots; opercnlar append!.: bordeicd with green. Head .'i; depth 

 2. 1). (IX) X. 11': A. Ill, 10. F.uivda. (HolhrooL) 



(I'lmiolix iiiiinjiiitiliix llollir. Jonrn. Aian. JX'ut. Sci. 1'liila. I- .".">, 49: I'diimlix nmriji- 

 iiatux (Jiinlli'T, i, '..'(I!.) 



7 89. t,. E>oct>ifTroias ( A^ass.) Jor. 



Uody rather short and deep, with the profile very sleep and the back 

 very much arched, the greatest depth of the body being over the 



