^'I^ Syste7)iaiic Arrangement. 
CLASS PISCES — Continwrt. Pa<:e. 
SUBCLASS SELACHII— Continued. 
Order Asterospondvli— C ontinued. 
SraoRDER Galei— C ontinued. 
Family lihinodontidfe 52 
Genus Micristodus Gill 52 
punctatus, Gill 52 
Order Cyclospondvli 52 
Scr.ORDER CVCLOSPOXDYLI 53 
Family Snualidre 53 
Genus Squalus (Artedi) Linnseus 53 
acantliia.s, LinniPus 54 
sucklii (Girard) 54 
Genus Centroscyninus. Bocage &. Capello 54 
ctelolepis, Bocage & Capello 55 
Genus Etinopterus, Rafinesriue 55 
pusillus (Lowe) 55 
Genus Centroscyllium, Muller &. Henle 56 
fabricii (Reinhardt) 56 
Family Dalatiidce 56 
Genus Somniosus, Le Sueur 56 
niicroceplialus (Bloch) 57 
Family Echinorhinidee 57 
Genus Echiuorhinus, Blainville 57 
spinosus (Gnielin) 58 
Suborder Tectospoxdyli 58 
Family S/juatinidee 58 
Genus Squatiua, Dumeril 58 
squatina (Linnieus) 58 
Order Batoidei 59 
Suborder Sarcura 60 
Family Pristidoe 60 
Genus Pri.stis, Latham (W 
zephyreus, Jordan &. Starks 60; 2749 
pectinatus. Latham 60 
Family Rhinohatidrje 61 
Genus Rhinobatus, Bloch Sc Schneider 61 
lentiginosus, Garman 62 
stellio, Jordan Sc Rutter 2750 
glaucostigma, Jordan Sc Gilbert 62 
• leucorhynchus, Gunther 62 
productns, Ayres 63 
percellens CWalbaum) 63 
spinosus, Giinther 63 
jdaniceps, Garman 64 
Genus Zapterj-x, Jordan Sc Gilbert 64 
exasperatus (.Jordan Sc Gilbert) 64 
xyster, Jordan Sc Evermann 65 
Genus Platyrhinoidis, Garman 65 
triseriatus (Jordan Sc Gilbert) 65 
Family Hajidce 66 
Genus Rjija (Artedi) Linna:-us 66 
erinacea, Mitchill 68 
ocellata, Mitchill 68 
fyllae, Liitken 69 
radiata, Donovan 69 
plutonia, Garman 69 
ackleyi, Garman 70 
omata, Garman 70 
