\6 Pho?^ena ? or the jintfomy of a for pefs. 
Eellonius , Ronddetius , Major, and others do mention 
the Meatus Auditonus which we like wife obferved at 
that diftance from the Eye, as hath been expreffed : ’tis 
extreamfmall,and whether really perforated at the skin, 
we fomewhat doubted ; for forcing a finall brittle into 
it, after it had entered, it readily defcended towards the 
os Petrofum, 
The figure of -the Aperture of the * Spiraculum or * Tab. 2 . 
Spout was fomewhat femilunar 1 5 twas placed acrofs ^ g% 9 * At 
the forehead juft before the Brain, and was almoft an Inch 
in length. 
The fhape of the Back was like the body of a Ship in- 
verted, that were it not for its Fins and Tayle, it would 
eafily turn downwards ; but the contrivance is moft con- 
venient for fwimming, by reafbn the water that is re- 
moved in fwimming is that above them, which does moft 
readily give way. 
The Horizontal fite of the Tayle m thisfifhis of great 
ufe. (/*) Mr. Ray conceives it to be partly to fupply 
the hindermoft pair of Fins, which ferve to ballance the 
body and keep it up in the water, anfwering in propor- 
tion to the hinder legs of a Quadruped ; Hence we fee 
that thofe fifties which have, Jong Bodies, and but one 
pair of fins, as Eeles and the like, cannot keep themfelves 
up in water, but lye alwayes grovelling on the bottom: 
Partly to facilitate the fifties afcent to the top of the wa- 
ter ( to which he can immediately raife himfelf by a 
light jerk of his tayle thus placed) for the ufe of Refpira- 
tion, which is as neceffary for him as for Quadrupeds. 
The ftru£hire of the vifcera and inward Parts have fo 
great an Analogy and refemblance to thofe of Quadru- 
peds, that we find them here almoft the fame. The 
greateft difference from them feems to be in the external 
(f) Thiloj, TranfaEt. 77.76. p. 2275. 
