2B and 2E) was divided into two segmented parts: proximal part which had no orna-mentation in the form of scales but the basal
podomere (plate) bears a large posterior spine, the second bears a pair of anterior spine with rounded tips, the third bears a pair of median spine, and the last
podomere terminates in a hook; proximal part stout, first segment slightly curved, bearing large triangular posterior and anterior spines with rounded tips; second segment with hook-shaped spines bending toward abdomen, slender distal part of antennule bearing anterior blunt knob, extending slightly beyond terminal spine, second segment of distal part half as long as first; terminal segment bearing about five to seven stout apical setae.
Ventral surface of ischipodite of third maxilliped bearing a median longitudinal band of tubercules; inside half of this surface with tufts of rigid setae; distolateral end of
podomere rounded, except in V.
The last larval stage, the free-swimming cyprid, settles and attaches to the substratum using the attachment disk on its third antennular
podomere (segment) (Lagersson and Hoeg, 2002).
Metatarsus I-II, calcaneus, length in relation to the
podomere length, (0) less than half (Maury & Roig-Alsina 1985:figs.
These antennal setae originate relatively proximally on the limb, at the distal end of the third articulating
podomere (Fig.
Podomere lengths: leg 1 femur 3.44, patella 1.07, tibia 3.12, metatarsus 1.46, tarsus 0.99; leg 2 femur 3.21, patella 0.67, tibia 2.97, metatarsus 1.76, tarsus 0.72; leg 3 femur 2.27, patella 0.60, tibia 1.72, metatarsus 1.30, tarsus 0.68; leg 4 femur 3.09, patella 0.43, tibia 2.07, metatarsus 1.35, tarsus 0.74.
The dorsal cuticle of the distal
podomere of the antennule was removed to expose the nerve bundles of the antennule.
Process of second
podomere bent laterally and hooked towards third
podomere, apex covered with sclerotised spots.
All legs with different lengths and
podomere proportions, tentatively numbered in sequence (see also Morphological interpretation) from longest to shortest: 2 4 1 3.
In nymphs, these same
podomeres are cylindrical, rather than laterally compressed (Juberthie 1972; Goodnight & Goodnight 1976).
Legs: Pads on legs absent, but spines present on all
podomeres (Fig.
Endobenthic crabs like those mentioned typically have pereiopods with distal
podomeres with a sharp edge, mechanically appropriated for an infaunal mode of life.