CLASS IV. ORDER V. 89 
ORDER 5. BRANCHIOSTEGUS. 
Skeleton: cartilaginous, without ribs 3 gill-mem- 
branes, with or without gill-covers. 
Loputius, (angler,) head depressed ; teeth nu- 
merous, sharp ; tongue armed with teeth ; =. 
ral fins brachiated ; ; no gill covers. 
CycLorrerus, (sucker, ) head obtuse ; teeth in 
the jaws; tongue short and thick ; s body thick 
without scales ; ventral fins united Se a circle. 
Batisres, (file-fish,) teeth several in both jaws: 
body compressei; abdomen carinated ; skin 
tough, often reticulated by scale-like divisions ; 
no gill-covers. 
OstTracion, (trunk-fish,) teeth pointing for- 
ward, cylindric, rather blunt ; hody mailed by a 
bony covering. 
Diovon, jaws bony, undivided; bedy beset 
with moveable spines. 
Crepuacus, (mullet, sun-fish,) jaws bony ; bo- 
dy terminating abruptly, so that the whole fish 
resenibles the head of a fish. 
Terropon, (sun-fish, &c.) jaws bony, divided 
- atthe tip ; body roughened beneath ; ventral fins 
wanting. © 
SYGNATHUS, (pipe-fisb,) snout sub-cylindric, 
with terminal mouth ; body lengthened, jointed, 
mailed ; ventral fins none. 
Cenrriscus, snout lengthened; body compress- 
ed, carinated beneath ; ventral fas united. 
Caner, (sea-monster,) head pointed on the 
upper part, mouth placed beneath, with the upper 
lip five-cleft ; no gill-covers ; two incisors in front 
above and below. 
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