. Bulletin. Science. 110 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES Table 4. Classification results of morphometric data for six populations of spotted sand bass {Paral- abrax maculatofasciatus). Rows are observed classifications and columns are predicted classifications. Bahia Percent San Guerrero Magda- de Los Los correct Diego Negro lena Bay La Paz Angeles Pulpos San Diego 100 30 0 0 0 0 0 Guerrero Negro 80 1 24 1 3 1 0 Magdalena Bay 73 1 1 22 6 0 0 La Paz 87 0 2 1 26 1 0 Bahia de Los Angeles 90 0 0 1 2 27 0 Los Pulpos 87 0 0 4 0 0 26 Total 86 32 27 29 37 29 26 Bahia de Los Angeles and reflect
. Bulletin. Science. 110 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES Table 4. Classification results of morphometric data for six populations of spotted sand bass {Paral- abrax maculatofasciatus). Rows are observed classifications and columns are predicted classifications. Bahia Percent San Guerrero Magda- de Los Los correct Diego Negro lena Bay La Paz Angeles Pulpos San Diego 100 30 0 0 0 0 0 Guerrero Negro 80 1 24 1 3 1 0 Magdalena Bay 73 1 1 22 6 0 0 La Paz 87 0 2 1 26 1 0 Bahia de Los Angeles 90 0 0 1 2 27 0 Los Pulpos 87 0 0 4 0 0 26 Total 86 32 27 29 37 29 26 Bahia de Los Angeles and reflects their north to south clinal relation to one another. Magdalena Bay and La Paz again overlap and include all sites. The characters most responsible for the variation are increasing gape width and sub- orbital width describing the southern group while smaller body depth and standard length characterize the northern sites. Results of DF I and DF II combined show that the cape populations are not easily discerned from the remaining sites and are more inclusive. The remaining upper Gulf and upper Pacific sites tend to have tighter clusters which allow for the discernment of geographic patterns. The upper Pacific samples are generally described by smaller fin and body sizes while the upper Gulf groups have larger facial measurements. The plot of DF III () shows an overlap of San Diego, Guerrero Negro and Los Pulpos which are the range extremes (Fig. 4). La Paz and Bahia de Los Angeles are separated along the zero axis and Magdalena Bay overlaps the both of them reflecting its clinical oo ts o s San Diego Guerrero Negro Magdalena Bay Los Pulpos Bahia de Los Angeles La Paz. -6-4-20246 Discriminant function I Fig. 3. Morphometric scatterplot showing Discriminant Functions I and II. Ellipsoids indicate 95% confidence Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance
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