105 
HIPPO CAMPUS. 
; 1 
Hippocampus’, Plinii.. a 
Synenaruus, Linn., Bl. Gmel., Gir. .» Dum., §c. 
Geeecess GrNéerert 
Corpus compressum scutis polyhedris cataphractum, 
articulatum, tuberculatum: ftruncus heptagonus, — 
altus, pinnis pectoralibus, dorsali analique distinctis: 
cauda tetragona, aptera. 
Caput crassum, cristatum, antice in rostrum subcom- 
pressum productum : 0s minimum, inerme, termi- 
* nale, mandibula inferiore tantum mobili: nucha ex- 
spiraculo utringue uno. 
HIPPOCAMPUS. 
. GENERIC CHARACTER. 
Body compressed, armed with polyhedral scales, jointed. 
tuberculated : trunk seven-sided, high, with pectoral, dor- 
sal, and anal fins distinct: taz/ four-sided, without the cau- 
dal fin. 
Head thick, crested, anteriorly produced into a snout 
terminated by a small toothless mouth, having the under 
jaw alone moveable: neck on each side, with one hole for 
exspiration. 
I have for some time considered the Syngnathus of au- 
* “Ineéxaperos ab ios equus, (a horse), et xxu7rs, flecto, (to bend) 
U 
