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E X P L A N A T I O N OF THE TABLES.
T A B L E XI.
T H I S Table reprefcnts the organs of generation and urine in the male Skate.
A A, The containing parts of the abdomen.
B, The diaphragm.
C, Thefpine.
D, The appendix vermiformis.
E, The common cloaca.
F, A large branch of the left inferior vena cava.
G, A large cavernous reccptacle common to the two ven® cavíe inferiores,
but communicating chiefly with the right cava.
H, A large probe pafled from the right cava into the cavernous receptacle.
11, The two teíHdes.
K, A white medpllary part of the right teílicle.
L L, Lobes in the tefticles.
M, Threads or tubes, by which the teftis is connefled to the epididymis,
N, Which is compofed chiefly of convoluted tubes.
O, Part of the epididymis which is not evidently tubular.
P, The ferpentine vas deferens.
"Q^. The termination of the dilated end of the vas deferens, or veficula feminalis
R, A fac, which contains a vifcid dark green-coloured humour.
S, An opening from R, contiguous to the opening from the vas deferens-
T, The kidney.
U, The ureter.
V, The termination of the ureter.
W X, A fection of the lobular or glandular part of the tefticle L, viewed with
a magnifying glafs, which is compofed of minute fpherical portions.
T A B L E XII.
T H I S Table reprefents die organs of urine and part of the organs of generation
1 the male Skate.
A, The bodies of the vertebrae.
BB, The loins, and containing parts of the abdomen.
C, The left kidney.
D, A briftle put into the ureter on the left fide.
E, The left vas deferens greatly enlarged at its inferior or poflerior end.
FF,
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