198 College of Forestry 
INFANCY. 6 specimens examined. 
29 mill. long. 
Insecta. Charonomus larve ...3..025.-. 404 75 per cent. 
POUNGenid NAT VER) eee ae eee 25 per cent. 
50 mill. long. 
Insecta. Chironomus larve® ......5..2.00. 15 per cent. 
Palingenia larve ...............; 80 per cent. 
Hphemeridsy sii. 3c 2st ae eee 5 
Crustacea. Cyclops: i thn anet Sacer e Derneatts 
YOUTH. 50-100 mill. long, 4 specimens examined. 
Inseetas “Chironomus Varve i>. 0.3 ames. ae 5 per cent. 
Ephemerid nymphs ........../.... 47.5 per cent. 
Coleoptera, Gyrinide larve...... 
\ 
Hydrophilide larve . f 21 Petcare 
PrE ADULT. Medium sized, 16 individuals examined. 
Insecta. RONG Enis ClCIe sa - aac oe 76 per cent. 
Odonatainym pus, :. jee Score ae 8 per cent. 
Moliuseat!), Blawonbisss <.2a2ne de es tne 
; MOS NOVEM Ea eb eriacpas con < 
AMODONTC.) 7. o.6. cini-ie 6 = See 16 per cent. 
Crmistaced. pA SCM 2 <. ois-satece svetousteomaraendie 
Pisces. SUCK eK ars is 'epaerosisSesersra oer: 
ADULT. 3 specimens examined. 
Mollusca. Campeloma deciswm ............ 46 per cent. 
Spherium, Anodonta, fragments of 
Castropoda.pa. sess ites eee 54 per cent. 
Bean (1903, p. 592) says “this species is usually found 
on the bottom where it feeds chiefly on crustaceans and 
mollusks and sometimes small fishes. It is especially fond 
or crawfish and small shells such as Cyclas |Spherwum, 
Musculium or Pisidiwm| and Paludina [Campeloma]. Mr. 
Turpe mentions water plants as forming part of its food 
and states that it will take a hook baited with worms or small 
minnows.” . 
The food qualities of this fish are somewhat in doubt. 
Forbes and Richardson (1909, p. 324) say, “It becomes 
tough and strong with age, but is at its best when weighing 
from three-quarters of a pound to three pounds. The market 
catch of sheepshead from the Illinois River in 1899 was 
459,580 pounds.” Bean (1903, p. 592) says of its food 
qualities: ‘Some writers claim that its flesh is tough and 
_—_P_ =. ae 
