[ 272 ] 
Its length, from nofe to the extremity of the back', 
is three inches three lines j its greateft breadth, one 
inch and a half. 
^ The head is large and fcaly. The neck thick and 
wrinkled. Eyes full ; noftrils fmall and oval ; the 
end of the upper mandible long and bifurcated, lap^ 
ping very far over the lower. 
The back is divided length-ways, with five pro- 
minent ribs covered with large yellow tubercles, the 
intervening part is dufky and divided by multitudes 
of lefTer and more depreffed tubercules. The whole 
circumference of the back bounded by a tuberculated 
rib, like thofe on the upper part. The extremity 
furcated. The whole is coriaceous and pliant. 
The tail is deprelTed fideways, tapers to a point, 
and reaches beyond the end of the back. 
The belly is yellow, tuberculated like the back, 
but marked with lix rows greatly prominent. 
The prior hns are longer than the whole body, 
very thin, dufky, and edged on their interior fides 
with white, and both the furfaces are covered with 
deprefl'ed tubercles . The hind fins are broad, 
much dilated near their end, and flightly bilobated : 
none of thefe fins had the left marks of toes or 
nails. 
This may probably be the fame with the Tejiudo 
coriacea of Linno'us, p. 350, or the coriaceous one 
above mentioned: but, as I have not at prefent be- 
fore me the authors cited by that able natnralift, I 
will not pretend to pronounce with certainty whe- 
ther it is the fame. 
Expla- 
