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ORNITHORY NCHUS. 
OrRNITHORYNCHUS, auctorum. 
Prarypus, Shaw. 
CHARACTER GENERICUS. 
Corpus pilis obtectum, anticé rostro anatino, lato, depresso 
terminatum : pedes quatuor, pentadactyli, palmati; ancice 
membrana palmatd digitis longiore, unguibus rectis ; pes- 
dic? unguibus acutis, curvatis, membranam palmatam ultra 
productis. 
Os molaribus simplicibus instructum. 
Oss. Memme nulle; labia carnosa nulla; palatum. cor- 
neum ; meatus auditorius externus nullus; pedes postzci 
Maris calce yalido instructi. 
ORNITHORYNCHUS. 
GENERIC CHARACTER. 
Body covered with hairs, anteriorly terminated by a broad, 
depressed, duck-like beak: /egs four, pentadactyle, pai- 
mated ; anterior legs with the palmated membrane 
projecting beyond the claws, which are straight ; Ander 
legs with acute, curved claws, produced beyond the pal- 
mate membrane. 
Mouth with simple grinding teeth. 
Ozs. Mamme none; fleshy lips none; palate horny; ex- 
ternal ear-passage none ; hinder legs of the Maze with 
a strong spur. 
The hair is compressed, and clavate at its extremity. 
*& 
