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ONTOGENY AND SYSTEMATICS OF FISHES-AHLSTROM SYMPOSIUM 



Table 20. Pigment, Morphological and Myomere Characters of Anguillidae, Derichthyidae and Serrivomeridae. + = All or most 



species; ( + ) = some species only. Refer to Fig. 40. 



Taxa 



Characters 



Anguilla Dertchlhys Nessorhamphiis Platuromdes Sernvomer Slemontdium 



Lateral pigmeitt 



A. Absent 



B. Minute compact spots just below 

 midline on nearly every segment 



C. Midline spots restricted to postanal 

 region (a few spots further forwards) 



D. A series of minute spots on body wall 

 postanally 



E. Minute spots on anal and dorsal bases 



Head pigment 



F. Absent 



G. A cluster of minute spots in orbit 

 above eye 



Morphological 

 H. Gut length 



1. 0.7 total length 



2. 0.75 total length 



3. 0.9 total length 

 I. Dorsal fin origin 



1. Just anterior to anus 



2. Just behind midlength 



3. At about midlength 



J. Position of last vertical vessel 



1. Behind mid-gut 



2. Before mid-gut 



Myomeres/vertebrae 

 Min. 

 Max. 



100 

 119 



126 

 134 



135 

 139 



153 

 170 



147 

 169 



137 

 141 



