GENERA PISCIUM 



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O R D O I. 



MALACOPTERYGII. 



/. STNGNATBUS. 



Opercula Branchiarum ex unica tenui lamella ofTea 

 utrinque conftantia, 



Memhrana Branchioflega 



Caput oblongum, cathetoplateum: Maxillte a lateri- 



bus claufe & OS in extremitate roftri tantummodo 



apertum. 



Corpus longumck admodum gracile, ambitu plerumque 



angulato , interdum fubrotundo : jam tetrapterygium, 



jam monopterygium (*). 



SPE- 



Additamentum. 

 (*) Chara&er generis Syngnathi. 



Ltnnjei : Roftrum fubcylindrieum; ore operculato, 



maxilla, infeiiore: Apertura branchiarum operculis clauiis; 



Artcdi Gtnera. A nucha 



