platypus (Webb, 2014): paired ovaries dorso-lateral to the digestive system, and connected in the middle, showing an "H" shape, and oviducts, which are connected to gonopores located on the ventral surface of the
exopodites of the second pereiopods.
During zoea I, the antennal exopodite is long, with a small spine in the distal region.
These setae are organized in groups of 3, with an apical orifice, and are set between each plumose seta of the exopodite (Fig.
The pleopods are similar to those of the type, their
exopodites extending considerably beyond the margins of the pleomeres, the subcircular endopodites not covering the central region of the dorsal surface of the pleon.
Exopodites of left-side pleopods averaged 3% and 2% shorter than
exopodites of rightside pleopods for the two respective species (paired t-test; both P<0.001; Table 1).
It was shown that both lobsters and crayfish produce a great variety of flow fields by using the
exopodites of the maxillipeds and by fanning the pleopods.
4); the paddle-like
exopodites that are used by the larval stages to remain in the water column presumably increase drag during tailflicking.
Each maxilla [ILLUSTRATION FOR FIGURE 4D OMITTED] of the first zoeal stage consists of a large scaphognathite (
exopodite fused with epipodite) on the lateral portion of the appendage, a weakly bilobed endopodite and two bilobed endites on the mesial portion.
The crabs used their chelae to scrape the third maxillipeds and
exopodites of the mouthparts; this behavior was only observed during the first hour of low-salinity exposure.
(2) Larvae swim mainly by beating the long
exopodites of the pereiopods.
Their thoracic appendages are biramous, and the outer branches or
exopodites are equipped with a fan of setae that acts as a paddle; thus, when the
exopodites beat rhythmically they provide locomotory power [ILLUSTRATION FOR FIGURE 1A OMITTED].
Exopodite of antenna (A2) 2-segmented with 4 setae, mandibular palp 1-segmented with 4 setae.