[ ] 
Fifh our Author in the Title Page ftyles Ter/to , the 
ufual Name for it in Pliny j but he calls it Phocama 
in the Appendix, the Name ufed for it by Ariftotle. 
'Tis ranked amongft the Cetaceous Kind, and is 
the fmalleft Fifh in that Tribe, feldom exceeding five 
Feet in Length; in which it differs from ED olphins, 
(amongft which Species it has by fome been impro- 
perly reckon'd) for they often exceed ten Feet in 
Length. The Snout alfo of the 'Dolphin is much 
larger than in the Porpefs , which is another thing 
fufficient to diftinguifh them. It would be needlefs 
here to give a Detail of the Anatomy of this Animal, 
which is fo largely done by Dr. Tyfon in his Pho - 
ctena. I fhall therefore only take Notice of fome 
Remarks made by our Author upon the Diftedtion 
of a Porpefs , by the accurate Hand of Dr. P)e la 
Motte , at Mr. Kleins Requeft. 
In the firft Place, the Meatus Audit orius was found 
by both to be two Inches diftant from the exterior 
Canthus of the Eye, forming a very fmall Hole (left 
the Water getting in might prove an Inconvenience 
to it). He then gives us an Account of the Os Pe- 
tr of m , and other Auditory Organs, with curious 
Figures of them ; in order to corredt Mr. Ray , who 
in Philofophical Tranf actions , n. 76. p. 2278-. fays. 
We dbfenjed not in this Fifh any Ear-holes or Meatus 
Auditorii at all , wherein alfo Ariftotle agreeth with 
us. 
A fecond Remark is, that though the Porpefs has 
no Vefcula fellea os Gall- bag, (and from thence moft 
Authors have been induced to believe no Gall) yet 
Dr. P)e la Motte , upon a more exaft Scrutiny, finds 
a Du& that arifts with a great Number of Branches 
in 
