260 Mr. CanLrsrLE' Obfervations 
Fig. &. Shews two joints, from one fide of which a flip was 
torn down to fhew the veffels underneath, and alfo the direction of 
the fibres in the flip, which are accumulated into little faíciculi 
like mufcular fibres. 
Fig. 6. Exhibits three joints, having the du&s leading from 
the lateral ofcula imjeéted ; the dark tranfverfe lines leading from 
each ofculum, thew the fize, direction, and extent of thefe du&s. 
Fig. 7. Shews the edge of two joints turned forwards, and the 
appearance of the ofcula in this point of view. 
Fig. 8. Reprefents the whole of thefe canals in their relative 
fituations. 
Fig. 9. Exhibits a view of the head of a Tenia from the Dog*, 
The head is bent upon the neck, and prefents a geometrical view 
of its face, which is flat, and has four tubercles fituated at equal 
diftances from each other; there are here two fets of radii fur- 
rounding the mouth, the innermoft of which probably ferve to 
open the mouth, whilft the outermoft a& as tentacula. 
Fig. io. Is the fame head, of its natural fize. 
Fig. 11. Is the head of a Teniat from the Cat, magnified. 
Here the radii project beyond the circumference of the head, and 
are aptly conftruéted for the purpofe of tentacula; the tubercles 
are here four in number. | 
Fig. 12. Shews a portion of the Tenia lata; the ofcula of which 
are fituated in the middle of each joint. - 
* ‘Tenia canina, Gmelin’s Syft. Nat. Linn. 
+ Tenia Felis of Gmelin's edition of the Syftema Nature. 
R Fig. 1% 
