CATALOGUE 



FIStl. 



Order I. APODES. 



Malacopterygii Apodes, Cuvier. 



Fishes of this order have an elongated form, are destitute of ven- 

 tral fins, and are covered by a thick, slimy skin, for the most part 

 naked, but in some genera enveloping small scales. The skeleton 

 exhibits no developed ribs. Pyloric cseca wanting. The greater 

 number have a swimming bladder, frequently of an uncommon 

 form. 



That the numerous species of this order may be duly arranged, 

 the families and sub-families must be divided into many genera. 



Section I. CRYPTOMYCTERES. 



The hinder nostrils situated in a crevice on the border of the 

 lip, or on the inner side thereof. 



Family 1. OPHISURID^. 



Members of this family have a posterior nostril, which is placed 

 in a cleft on the border of the lip, or perforates the inner soft 

 part thereof. 



Sdb-Family 1. OPHISUPJN^. 



These have the tail ending in a conical point, which is naked, 

 and not encompassed by the dorsal or caudal fins. 



a. Teeth diqwsed in a single row, on all the dcntiferous bones. 



Genus 1. LEIURANUS, Bleek-er. 



Diagn. No vomerine teeth. 



Descr. The upper jaw is elongated like that of a shark, and the 



B 



