. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 65 â¢J ⢠\ * Body Depth â n »' ⢠- ⢠⢠. ⢠⢠O ⢠⢠⢠⢠M 57 " ⢠⢠**"".. m a c 53 - ⢠⢠⢠i ⢠⢠⢠⢠⢠⢠- a. ⢠⢠49 - ⢠⢠- 45 i i i i i i. 80 105 Standard Length mrt Figure metric 20. Ratio characters â size scatter diagrams for five morpho- Peprilus burti. 15) is considered to be reasonably ade- quate, and specimens from all parts of the known geographic range were examined. Ranges of meristic values appear, by in- spection, to approach a normal distribution (Tables 1 to 4).
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 65 â¢J ⢠\ * Body Depth â n »' ⢠- ⢠⢠. ⢠⢠O ⢠⢠⢠⢠M 57 " ⢠⢠**"".. m a c 53 - ⢠⢠⢠i ⢠⢠⢠⢠⢠⢠- a. ⢠⢠49 - ⢠⢠- 45 i i i i i i. 80 105 Standard Length mrt Figure metric 20. Ratio characters â size scatter diagrams for five morpho- Peprilus burti. 15) is considered to be reasonably ade- quate, and specimens from all parts of the known geographic range were examined. Ranges of meristic values appear, by in- spection, to approach a normal distribution (Tables 1 to 4). The main exception is vertebral number which, as in all the species of Peprilus, is relatively constant (Table 5). Geographic variation. No geographic variation was noted in this species. Ontogenetic change. Few and moderate changes accompany growth in P. burti in a size range of about 8 to 167 mm SL. As shown by ratio-on-size diagrams (Fig. 20), head length, eye diameter, and body depth decrease in size relative to SL with growth, while the relative length of the pectoral fin increases up to about 100 mm SL then becomes nearly constant; the relative depth of the caudal peduncle remains nearly constant. The correlation coefficient of the size-on-size regression of eye diameter is relatively low (Fig. 3; Table 6). The size- on-size regressions of body depth for P. burti and the closely related P. triacanthus (Fig. 2) show the two to be similar in this character up to about 30 mm SL, beyond which size P. burti becomes deeper-bodied. Distribution (Fig. 7). P. burti is known only from the Gulf of Mexico. The range extends from the vicinity of Tampa Bay, Florida (about 27°45'N), along the conti- nental shelf to the western side of Yucatan, Mexico (about 21 °45'N). Caldwell (1961) lists two records for the species outside of the above range: 1) Big Sarasota, Florida, about 27°30'N, CAS 17237; and 2) Cape Romano, Florida
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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
