AN A TOMY OF FISHES
BONY SKELETON OF A YOUNG TUNA
NS
(Redrawn after PotthoH, 1974)
AV
abdominal vertebrae
HY
hypural
Pa
parapophysis
CV
caudal vertebrae
NS
neural spine
PT
pterygiophore or interneural
HS
haemal spine
INTERNAL ORGANS OF A FISH (COMPOSITE)
SP
GO
AN
anus
H
heart
SP
spleen
AB
airbladder (swimbladder)
IN
intestine
ST
stomach
B
brain
K
kidney
T
tongue
GI
gills
L
liver
UB
urinary bladder
GO gonad
PC
pyloric caeca
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