The Relation of Mollusks to Fish in Oneida Lake 215 
It is of interest to compare the detailed studies made upon 
New York fish with those made by Forbes (1876-1887) on 
the fish of Illinois waters. The latter examined 1,221 speci- 
mens of 87 species, of which 914 were adult and 307 were 
young. Of the 87 species, 39 were mollusk-eaters, more or 
less, or nearly one-half. Needham has examined 168 speci- 
mens of 5 species of New York fish, mostly from the Adiron- 
dack region. In the present paper 130 specimens of 16 
species are reported upon. Careful studies have been made, 
therefore, on 298 specimens, of 19 species, of New York fish. 
TABLE NO. 14. ONEIDA LAKE MOLLUSK-EATING FISH. 
1 | AS 
|S | 
: = OF 
B | © | | Sed ors: 
KAP ee He ; @ fas} | 3 
SIS/Slslelzlals 
gi |e |e were heen |e ee Ia) fies 
Mo..usks. Te ees jalo|/H| ils 
rat Wine Came [ieiuleag | Sy) | eviien 
aoe) | MST | es Se ete oOo} 8 
a | & a} iS j= | > 
Sil eis lige || Sa tal 
g|s | as] gies |e | aric 
BO re NON et sn 
OlOl/OlR lH lala le 
PA TUEGOLONLUSENTCG ne lo) 6 5s ite tise: Ee >: eal | eee x lil x 
PAUMINACOLGULUMOSG: «2.02. 2 oes ae oh wis oes eee | ee 
ESERUNTOMETLACTLGLG 21> 20st ates Gey Aas ee Satta co ll 
MVGCUDOLOALTUCOMINALG..%.. S52 & use ehene eee 5a Saree eae lose 
Valvata bicarinata normalis.............. Ses al ase eee (ees 
Planorbis campanulatus................. ei = Bla. oe eR a ee eae ene 
MAULTLOV OTS (GMAT OSUS: oo. Goce cos te ecieee me oe as eh | ae i Go pie (i A oe 
TZAMOGOULSIRUTSULUSss.1opsoe 2 a ek [ieee Ae 2 Th bles, Mal Ree a te 
JURA TTD FOL POU eee ods Bente ateoceee Chart EGE ete) se 2: Sahel a) eee 
PE VEIUORDUS CLACUOUS. ne. sons beh ene oe ns Saree eee ep age lee ea cere | aces |e eee 
Physa ancillaria warreniana............. SAA P-Solheo SM lc aa leh l honey alee |. Ses 
BALE T USED QT CULELUS 21 tei.) ok tee hee ae BEI ee ake | es pte |e fenton eee (275 < 
RLM CISCODIUM : «icc. 3...5 = s Somin oe ees Feet | Sef soll e> oad tet | ate R91] eae 
LESEOUTE SOE CES Ca ee OE NG ae Nhe Pecan. 5 IPERS: ls verse cpa tees [Petes 
Pisidium henslowanum.................. x Ekle oe 
TUSCULIUND SECUTIS = oe .-+- 2 sees aodek x me ke oe 
Spherium vermontanum...............-. eal Brae. x lh eee 
Species used by fish. 055. 22. Go (hel ee eae ee ae 1 
Ratio of mollusean food............ 30) |, LO 665100} at 1 
| 
