1865.] GILL— FISHES OF THE BAT OF FUNDT. 2G5 



FAMILIES OF RALE. 



RAIID^E (Bon). 



Genus Raia Linn. 



Raia laevis Mitchill. Skate (Perley.) 



Raia lrevis, Dekay, N. Y. Fauna, 370. 

 Raia erinacea Mitchill. Hedge-hog ray. (Perley.) 



Raia erinaceus, Dekay, N". Y. Fauna, 372, pi. 78, fig. 276. 

 The identification of these species requires confirmation. 



MARSIPOBRANCHLE. 

 ORDER HYPEROART-E. 

 SUB-ORDERS. 

 Palate not perforated. Hyperoartit. 



Palate perforated by the posterior aperture of the naso-palatine 

 tube. Hyperotreti. 



PETROMYZONTHXE Bon. 



Genus Petromyzon (Linn.) Gray. 



Palatal teeth two, conic, closely approximated. Lingual teeth 

 two, serrate. 



Petromyzon Americanus Say. American lamprey. (Perley,) 

 Petroyzon Americanus, Dekay, N. Y. Fauna,' 379, pi. 66, fig. 216. 



ORDER HYPEROTRETI. 



MYXINIDiE Mull. 



Genus Myxine Linn. 



Myxine glutinosa Girard.* 



Myxine glutinosa, Girard Proc. Acad. N. S. Phila. 1588. 



SUPPLEMENTARY NOTE. 



Having been recently engaged in a revision of the classification 

 of the fishes of our coast, I embrace this opportunity of remarking 

 that the Sparoids are among those hitherto misunderstood. The 

 Pugrus argyrops Cuv., Sargus arenosus Dekay, and Sargus 

 ambassis Gunther, should be united and referred to a new genus 

 which differs widely from both Pagrus and Sargus ; the teeth in 

 front are trenchant and compressed but very narrow, and in front 



