214 
Table Il contains the counts for 664 specimens of Etheostoma caprodes from 
Turkey Lake. 
These fall into three different broods, those of 793°, ’94° and 
795°, all three broods having been taken during the summer of 95, so that they 
also represent three different ages. 
this table that was said about the specimens in Table I. 
The same can be said of the specimens in 
The number of speci- 
mens in each case here is much smaller than in the other table, and, as a conse- 
quence, the per cents in the two sexes do not agree quite so perfectly. 
TasieE III. 
ETHEOSTOMA NIGRUM FROM TIPPECANOE LAKE. 
of ? Ei and 
Wamiber tOL, Specimens 2/2 5s Valsioyesielte ws seia eats 250 250 | 500 
A.—Dorsal spines. 
Per cent. of specimens having 7dorsalspines..| 1.20 2.40 1.80 
Per cent. of specimens haying 8 dorsal spines. .| 15.60 15.20 15.40 
Per cent. of specimens having 9 dorsal spines. .| 62.80 56.80 59.80 
Per cent. of specimens having 10 dorsal spines. .| 19.20 24.80 22.00 
Per cent. of specimens having 11 dorsal spines..| 1.20 0.80 1.00 
Average number of dorsal spines ................ 9.03 9.06 9.04 
AV OTA SCLVALIAUOON Sel Fe.5 fae ticrecs wietdlaye te ates 23016 26288 |\-\cdeamens 
B.—Dorsal rays. \ " 
Per cent. of specimens having 11 dorsal rays..| 2.00 2.00 2.00 
' Per cent. of specimens having 12 dorsal rays...) 35.60 40.80 38.30 
Per cent. of specimens having 13 dorsal rays... 55.20 48.00 51.60 
Per cent. of specimens having 14 dorsal rays..| 7.20 8.80 8.00 
Per cent. of specimens having 15 dorsal rays..|......... 0.40 0.20 
Average number of dorsal rays................-- 12.71 12.64 12.67 
AVENAPC WAT latlomy it ay) isc ate chat naremn <a CT ave hare | 53992 -O9084: | «i: Niet 
C.—Anal rays. 
Per cent. of specimens having 7 anal rays....| 0.40 0.80 0.60 
Per cent. of specimens having 8 analrays....| 8.80 | 13.60 11.20 
Per cent. of specimens having 9 anal rays....| 66.40 56.80 61.60 
Per cent. of specimens having 10 anal rays....| 22.80 28.40 25.60 
Per cent. of specimens having 11 anal rays....| 1.60 0.40 1.00 
Average number of anal rays...............006- 9.16 9.15 9.15 
AVerape Variation. 35. .(5 ts \Aaatenclfain sry s:lla\9 eh .43792 200 350)\\seuetevetteree 
