0»«i(/<j l.akr l-ishcs 3X3 



Food. The fond, as revealt-d liy the stninach contents of four sixxiniens, 

 consists of crawfish and insects, according; to Hankinson ('08, p. 208). A dozen 

 specimens examined by Forbes and Richardson ('txj, p. 186; Forl)es. '^, p. 459J 

 showed tlie tish to l)e a scavenj,'er. and fresh materials inchided crawfish, insects, 

 snails. l-jUomostraca. and some water plants. Baker ("lO, p. 175) found in the 

 stomach of Onfida I^ke specimens (No. 1-7) insects, algae, Aiicylus and 

 detritus. .Another specimen ( Xo. 51O), 8..25 inches long, was found by us to 

 contain a crawfish ( Caiiiharus) claw, a Yellow Perch, ( Pcrai flaz-cscfiis) alxjut 2>i 

 inches long, and a small piece of grass. Krecker ('ly, p. 453) found shells of 

 Physii, May-fly nymphs and considerable algae in a fish from a ]K)nd near San- 

 dusky, (^)hio. Small fish and crawfish were the princijial food of 122 specimens 

 of the Catfish from I.ake Maxinkuckee and vicinity ( Kvermann and Clark, 'jo, 

 \nl. I, pp. 294, 325). 



Surber ('20. j). I") says that it is a scavenger, eating everything found in 

 the water: minnows, crawfish, insect larvae, snails by preference. The young feed 

 princiiially on Entomostraca and insect larvae. I'earse ('21. p. 2O3 ) reports on 

 the food of two fish of this species, e.ich nearly a foot long, from Green I-ake, 

 Wisconsin. .About a third of the food was fish and about a third insects. Craw- 

 fish, amphipods, entomostracans. ami i)lants made up the rest. 



Dislrihulion Records. No. 81. fntm small ditch emptying into Johnson's 

 H.iy; No. 122, Shaw's May: No. 124. Kairchild Hay: one large specimen. No. 128, 

 Hig Bay Creek; No. 138, near Belknap I-an<ling: No. 3(X>. Lower .South Bay; 

 No. 516, Fish Creek: No. 563. small creek at hea<l of Big liay ; No. G22. Coville's 

 L^inding, Brewerton. .\ total of 17 specimens are in <»ur collection. 



F.tinuics and Disease. No reconls have been found of this fish being taken 

 by predacious animals, although doubtless it fre(piently hap|K'ns. Two |>arasitic 

 cope|KMls are recorded by Wilson from this bullhead, namely, ./n/H/ii.v ttiaciilosus 

 Wilson C07, p. 416; "ifi, |). 354; 'k), pp. 230. 231 ) and linjasiliis rcrsiiolor Wilson, 

 att.iched to the gills ('16. p. 33S). Me also records the glochidia of .hiodonla 

 corpiiliitta on the fins, an<l Qiiadnila on the gills ("16. \i. 338). Surlier ("13. p. 

 103) states that "a catfish {.Iniciunts tialalis) carries a few glochidia of the 

 Quadrula type." Stiles ('<>4. p. 175) found a jmUozoan. llol»f>lirya iiiiillifdiis 

 (Fou(iuet), infesting this fish. I.eirhes. trematodes and .\caiUhoiephala were the 

 chief jKirasites foimd bv I-'.vermaim ami Clark ('20, \dl. i. p. 2<)4: \dl. 2. jip. 

 7'>>^i). 



r.coMomic h'llalioiis. The relative .scarcity of the Yellow Bullhead in many 

 legions. aii<l the fact that few distinguish it from the Common Bullhead, makes it 

 difficult to secure .iccurale details concerning this s|Kries. i-'orlK-s and Kichardsiiu 

 ( "(Kj. p. i8<i) state that the ibin skin niakes this fish "particvdarly hard to dress." 

 It is re|Mirted by Hankinson ('13. |i. loS) that in Illinois it is "fr(i|uently taken 

 by hook from <leep holes in tl»e rivers. an«l from similar places in creeks." 



Ri-frniiirrs. Baker, '16: Bean. '02; I'.vermann and Clark. '20; F«)rlics, '88; 

 Forbes and Hichardson. "oj; '13; Fowler. '13, '17: Ifankin.son. 'tiS. '13; Kendall, 

 "lo; Krecker. "ii); Hichardson, '13; Stiles. '94; Surlwr. '<)4. '13. '20; Wilson. '07, 

 ■l(>. 'm: \\ riu'lil .hkI Allen. "13. 



