morphology is still central to spirostreptid millipede taxonomy (e.
10): female gonopod
with claw-like sclerites, each hard and dark.
We observed preliminary differences in first form male gonopod
structure, branchiostegal tubercle presence, chelae shape, size of first form males, and pigmentation (Simon unpubl.
brachydactylus by gonopod
and annulus ventralis morphology.
80), except in the case of very small species; gonopod
telopodite very complicated, twisted, with tarsus strongly broadened into leaf-like appendages (Figs 79, 83, 85, 88) Odontopygidae
In my previous work on Pseudotremia (Lewis 2000) I followed the terminology concerning gonopod
structures established by Shear (1972).
telocoxite with distinct lateral cone (Fig.
Camband crayfish have a variety of ornate terminal elements on the gonopod
, while astacid crayfish have simple cylindrical distal elements.
The first pair of male legs and the gonopods
were removed from the millipede and one of the telopodites was separated from the gonopod
are usually of unequal length, one gonopod
exceeding the other in length, sometimes markedly (e.
were elongated, sausage-shaped, and resided within a shallow trough just posterior to the anus and anterior to the anal fin origin, while the female cloaca possessed a circular, mound of villiform tissue with a short, flattened tube for egg deposition.
Morphological features of the crayfish, including the annulus ventralis, gonopods
, and color patterns were consistent with the original description of C.