Table 3-F values for covariance comparisons of regression equations (Table 2) of maxillary length and number of mandibular teeth between males
 and females within populations of Chasmodes (** = P<.001; NS = not significant). F values for testing parallelism of the regression lines
 are given only when the lines are not coincident.

 F values F values
 Species, population Abbreviation df coincidence df parallel


bosquianus bosquianus
 Marineland, Florida
 maxillary length
 mandibular teeth
 N. E. Florida and Georgia
 maxillary length
 mandibular teeth
 South Carolina
 maxillary length
 mandibular teeth
 North Carolina
 maxillary length
 mandibular teeth
 Chesapeake Bay to New York
 maxillary length
 mandibular teeth

bosquianus longimaxilla
 Pensacola, Florida to Louisiana
 maxillary length
 mandibular teeth
 Matagorda Bay area, Texas
 maxillary length
 mandibular teeth
 Aransas Bay area, Texas
 maxillary length
 mandibular teeth


2/35 1.16 NS
2/35 0.10 NS

2/13 4.47 NS
2/13 0.07 NS

2/18 0.82 NS
2/18 0.04 NS

2/31 3.18 NS
2/31 0.66 NS

2/97 6.16 NS
2/97 0.32 NS



2/29 0.79 NS
2/29 0.12 NS

2/31 3.64 NS
2/31 0.27 NS

2/26 1.38 NS
2/26 0.62 NS