Table 2-Regression equations, correlation coefficients (r), and probability values (P<) for maxillary length and number of mandibular teeth (Y)
 versus standard length (X) for males and females within populations of Chasmodes.

 Regression equation Regression equation
Species, population, sex N maxillary length r P< mandibular teeth r P<


bosquianus bosquianus
 Marineland, Florida
 males 16 Y = -0.9520 + 0.1669X
 females 21 Y = 0.0840 + 0.1399X
 N. E. Florida and Georgia


 males 8
females 7


Y = -2.6378 + 0.2059X
Y = -0.1528 + 0.1416X


 South Carolina
 males 10 Y = -1.4728 + 0.1842X
 females 10 Y = -0.1885 + 0.1528X
 North Carolina
 males 22 Y = -1.3193 + 0.1803X
 females 11 Y = -0.7484 + 0.1608X
 Chesapeake Bay to
 New York
 males 51 Y = -1.9534 + 0.1910X
 females 48 Y = -0.9159 + 0.1650X

bosquianus longimaxilla
 Pensacola, Florida to
 Louisiana
 males 20 Y = -1.6030 + 0.2164X
 females 11 Y = -4.4562 + 0.2631X
 Matagorda Bay area,
 Texas
 males 25 Y = -1.2860 + 0.2072X
 females 8 Y = -0.7269 + 0.1830X


0.959 0.01 Y = 20.3108 + 0.4950X
0.862 0.01 Y = 22.5687 + 0.4458X


0.970 0.01 Y = 21.1373 + 0.4911X
0.997 0.01 Y = 24.9190 + 0.4209X

0.962 0.01 Y = 18.8009 + 0.5621X
0.918 0.01 Y = 21.2808 + 0.5150X


0.972 0.01
0.986 0.01



0.964 0.01
0.971 0.01




0.943 0.01
0.962 0.01



0.928 0.01
0.984 0.01


Y = 21.6752 + 0.4948X
Y = 14.7354 + 0.6340X



Y = 18.4520 + 0.4753X
Y = 18.8321 + 0.4779X




Y = 25.5717 + 0.4622X
Y = 27.0016 + 0.4493X


0.920 0.01
0.718 0.01


0.773 0.05
0.789 0.05

0.854 0.01
0.838 0.01

0.808 0.01
0.913 0.01



0.867 0.01
0.911 0.01




0.921 0.01
0.770 0.02


Y = 31.5014 + 0.3560X 0.711 0.01
Y = 28.5067 + 0.4183X 0.963 0.01