- maturity, the
males have a pair of
calcified claspers,
paired retractable prepelvic graspers, and a door-knocker-like
projection (tentaculum) on
their heads...
- bony
shoulder girdles and many
small sharp spines ("intermediate" or "
prepelvic" spines)
between the
pectoral and
pelvic fins. The
climatiiform subgroup...
- Six
closely spaced pairs of
prepelvic spines run on the underside,
which may have been
somewhat mobile and
possessed prepelvic finlets.
These are followed...
- forehead, is used to
clutch the females'
pectoral fins
during mating. The
prepelvic tentacula are
serrated hooked plates normally hidden in
pouches in front...
- than 70 on the
first gill arch,
eight rays of the
pelvic fin, and 17-18
prepelvic and 12-13
postpelvic scutes, all of
which it
closely resembled that of...
- †Acanthodii ("spiny sharks"), one or more
pairs of "intermediate" or "
prepelvic"
spines are
present between the
pectoral and
pelvic fins, but
these are...
- Matsuoka, H.; Seoka, R.; Hasegawa, Y. (2024). "Reexamination of the
prepelvic vertebrae found in the
holotype of
Annakacygna hajimei (Aves, Anseriformes...
-
rounded snout;
notably large mouth gape;
preanal length of
around 70% SL;
prepelvic length of
around 50% SL;
caudal peduncle length about 2.5
times its depth;...
- have pectoral, pelvic, anal and
dorsal fin spines, as well as a pair of
prepelvic spines,
which are
intermediate between the
pectoral and
pelvic fin spines...
-
ventrally until the
origin of
pelvic fins,
often with a
small patch of
prepelvic scales. Laterally, this
naked area of the
breast is
separated from the...
