vin Systematic Arrangement. 



CLASS PISCES Continued. Page. 



SUBCLASS SELACHII-Continued. 

 ORDER ASTEROSPONDYLI Continued. 

 SUBORDER GALEI Continued. 



Family Ehinodontidce .' 52 



Genus Micristodus Gill 52 



punctatus, Gill 52 



ORDER CYCLOSPONDYLI 52 



SUBORDER CYCLOSPONDYLI 53 



Family Squalidce <. 53 



Genus Squalus (Artedi) Linnaeus 53 



acanthias, Linnaeus 54 



sucklii ( Girard) 54 



Genus Centroscymnus, Bocage & Capello 54 



coalolepis, Bocage &. Capello 55 



Genus Etmopterus, Rafinesque 55 



pusillus (Lowe) 55 



Genus Centroscyllium, Miiller & Henle 56 



fabricii (Reinhardt) 56 



Family Dalatiidce 56 



Genus Somniosus, Le Sueur 56 



niicrocephalus (Bloch) ' 57 



Family Echinorhinidce 57 



Genus Echinorhinus, Blainville 57 



spinosus (Gmelin) 58 



SUBORDER TECTOSPONDYLI 58 



Family Squatinidce 58 



Genus Squatma, Dumeril 58 



squatina (Linnaeus) 58 



ORDER BATOIDEI 59 



SUBORDER SARCURA 60 



Family Pristidce 60 



Genus Pristis, Latham 60 



zephyreus, Jordan & Starks 60 ; 2749 



pectinatus, Latham 60 



Family Rhinobatidce 61 



Genus Rhinobatus, Bloch & Schneider 61 



lentiginosus, Garman 62 



stellio, Jordan & Rutter 2750 



glaucostigma, Jordan & Gilbert 62 



leucorhynchus, Giinther 62 



productus, Ayrea 63 



percellens (Walbaum) 63 



spinosus, Giinther 63 



planiceps, Garman 64 



Genus Zapteryx, Jordan & Gilbert 64 



exasperatus (Jordan & Gilbert) 64 



xyster, Jordan <fc Evermann 65 



Genus Platyrhinoidis, Garman 65 



triseriatus (Jordan & Gilbert) 65 



Family Rajidce 66 



Genus Raja (Artedi) Linnaeus 66 



erinacea, Mitchill 68 



ocellata, Mitchill 68 



fyllse, Liitken 69 



radiata, Donovan 69 



plutonia, Garman * 69 



ackleyi, Garman 70 



ornata, Garman 70 



