[ 30 ] 
IV. Lamprey. page 58 
V. SKATE. 62 
Vic SHARK. 74 
VII. Fisninc Froce. 93 
VIII. Srurceon. 96 
IX. Sun Fisu. 100 
X. Lump Fisw. 103, 
XI. Pipe Fisu. 106 
Div. NI) Be QUON? Yoo. VE isan 
HIS divifion includes thofe whofe mufcles are 
fupported by bones or fpines, which breathe 
thro’ gills covered or guarded by thin heny plates, 
open on the fide, and dilatable by means of a cer- 
tain row of bones on their lower part each fepa- 
rated by a thin web, which bones are called the 
Radii Branchioftegi, or the Gill-covering Rays, 
The tails of all the fifth that form this divifion, 
are placed in’a fituation perpendicular to the body, 
and this is an invariable character. 
The later Icthyologifts have attempted to make 
the number of the branchioftegous rays a character of | 
the genera, but I found (yet too late in fome inftances, 
where I yielded 2n implicit faith) that their rule 
was very fallible, and had induced me into error; 
but as I borrowed cther definitions, it is to be hoped 
the explanation of the genera will be intelligible. I 
fhould 
