exopodite

(redirected from exopodites)
Also found in: Dictionary, Medical.

exopodite

[ek′säp·ə‚dīt]
(invertebrate zoology)
The outer branch of a biramous crustacean appendage.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Pleon nearly straight across posterior margin, of six pleomeres, first five produced into extended lateral plates, sixth as small embedded pleotelson; five pairs of biramous pleopods, exopodites of first three greatly expanded; no uropods.
Five pairs of biramous pleopods nearly symmetrical on opposite sides of body, endopodites of first three pairs greatly expanded into large subrectangular fleshy lobes extending far to sides, other exopodites and all endopodites much reduced and mostly extending posteriorly somewhat beyond margins of lateral plates; pleopods covering all but small medioanterior region of pleon ventrally.
Table 1 Results of tests of potential effects of various criterion variables on the accuracy (bias of delta-bars) and precision (CVs of deltas) for measured lengths of first pleopod exopodites for slipper lobster (Scyllarides squammosus) and Hawaiian spiny lobster (Panulirus marginatus) caught from Necker Bank, Hawaii.
These data are used to validate several morphological metrics (relative exopodite length, ovigerous condition) of functional sexual maturity.
1B) by the exopodites of the second and third maxillipeds.
As previously described in lobsters (Homarus americanus), the exopodites of the first maxillipeds do not contribute to these lateral gill currents in snapping shrimp, whereas in crayfish (Procambarus clarkii) these appendages are also involved (Breithaupt, 1998).
The larvae remain in the water column and move slowly by beating the external rami, exopodites, of their biramous limbs (Ennis, 1995).
Because the hyperextended position is held for such a long time preceding flexion (127 [pm] 7 ms), therefore delaying displacement, the putative advantage it confers to streamlining the exopodites comes at a cost to a budget of total tailflicking time.
There were distinct differences in movement of the mouthparts (third maxillipeds and exopodites) between each of the species [ILLUSTRATION FOR FIGURE 3 OMITTED].
Simultaneous recordings were made from the basal muscles producing the rhythmic beating of the exopodites and the muscle bundles developing in the merus of the endopodite of the first walking leg.
Table I Numbers of somata counted in the ganglion following dye infusion at the distal end of the basis in animals of different stages(*) Post larva Stage I Stage II Stage III and adult Exopodite 5, 5 6, 5 5, 6, 5 Endopodite 13, 13, 14 15, 12 12, 13, 13, 12, 13, 13, 14, 15 13, 14 * These numbers demonstrate that something approaching the full complement of motor neurons is present at hatching, but they cannot be considered definitive until silver intensification and antibody staining has been completed.
brucei: exopodite of A2 2-segmented with 4 setae, mandibular palp 1-segmented with 4 setae, the first segment of endopodite P2 with setae on inner side, abdominal somites with continuous row of spines edged on dorsal and discontinuous (of female) in the medial row of some longer spines on ventral side.