12 dorsal spines. All other members of the Lu- 

 tjanidae have 10 spines. Finally, the head length 

 of R. aurorubens is greater than the body depth 

 (Laroche 1977), while in L. campechanus head 

 length is about equal to body depth (Table 4). 



Identification of the larvae and juveniles of 

 other lutjanid species is more difficult than that of 

 L. campechanus and R. aurorubens, since the 

 meristic characters are very similar in most other 

 species of lutjanids. At the present time, field- 

 collected lutjanid larvae <4.0 mm can be iden- 

 tified only to family. Laboratory rearing presents 

 the most likely solution to the larval and juvenile 

 lutjanid taxonomic problem. 



ACKNOWLEDGMENTS 



We thank Suzanne Christoff for making the il- 

 lustrations and Barbara Y. Sumida and William J. 

 Richards for furnishing information on illustrat- 

 ing techniques. We are indebted to Arthur W. 

 Kendall, Jr., both for assistance in the identifica- 

 tion of all but the largest specimen and for the 

 preliminary review of most of our illustrations. 

 We are grateful to Larry H. Ogren who collected 

 and identified the largest specimen. We thank 

 William D. Anderson, Jr., Edward D. Houde, G. 

 David Johnson, Wayne A. Laroche, William J. 

 Richards, and Bruce W. Stender for reviewing the 

 manuscript. 



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974 



