- tardigrades.
Heterotardigrades have
gonoducts that open to the
outside through a
preanal gonopore,
rather than
opening into the **** as in the Eutardigrada. Some...
-
Rhacodactylus geckos are ****ually dimorphic, with the
males possessing larger preanal pores than the
females as well as a
distinct hemi**** pocket.
Males tend...
- diplosegments. The
final segment is
known as the
telson and
consists of a
legless preanal ring, a pair of anal
valves (closeable
plates around the ****), and a small...
-
gallinarum is
about 1–2 cm in
length with a
sharply pointed tail and a
preanal sucker. The
parasite is a
diecious species with
marked ****ual dimorphism...
-
included in this genus. One
group is
characterized by
presence of the
preanal spine (only P. calmoni) and the
other group including the rest of the species...
-
other and a
large ear hole is
visible near the back of the head. Four
preanal pores are present. The snout–vent
length (to the base of the tail) is 16...
-
curved or straight. The head is
robust and wide. Its
snout is blunt. A
preanal spine is absent. The
adipose fin is wide. The head is
silver with metallic...
- They are
distinguishable by a
slightly round dorsal fin,
eighty slender preanal fin-chambers,
narrow caudal fin, and
obtuse angles between fins. They obtain...
- imbricate.
Males have a
short angular series of four to 10 (exceptionally two)
preanal pores. The tail is cylindrical,
slightly depressed, tapering, and covered...
-
traditionally based on
morphological characters, such as the
number of
preanal pores, body annuli, tail annuli, and
skull shape. Such
characters are vulnerable...
