The two segments of the protopodite are short, but distinct; the endopodite forms the long lash, or flagellum, composed of very numerous small segments; the exopodite is reduced to a small movable scale or spine.
The three pairs of limbs are shown by their later development to be the antennules, antennae, and mandibles; the first pair are unbranched, the second and third divided into exopodite and endopodite.
They are much larger than the other swimmerets, and have the endopodite and exopodite broadened out into large plates; while the protopodite is very short, and not divided into segments.
If the under-side of the living animal be examined with a pocket lens, a white spot will be seen on each exopodite of the first two pairs of pleopods.
In the young Lobster, when just hatched from the egg, however, each of the legs has a large exopodite like that of the third maxilliped.
Each leg, except those of the last pair, has on its first segment an exopodite with a gill like those of the maxilliped.
Exopodite of Neolenus serratus (Rominger), to show form of the lobes of the shaft, and the setae.
The anterior exopodite is very poorly shown, but seems to be articulated in front of the eye.
The exopodite of the third thoracic segment is 19.
Slice of Ceraurus pleurexanthemus, showing a nearly continuous section of an endopodite and an exopodite above it.
This section is so exactly what would be obtained by cutting similarly an exopodite of either Neolenus or Triarthrus that it should in itself dispose of the "spiral-exopodite" theory.
The coxopodite swings on a sort of ball-and-socket joint, and at the outer end both the exopodite and the basipodite articulate with it.
Since the exopodite articulates with the basipodite as well as with the coxopodite, the two branches are closely connected with one another and there is little individual freedom of movement.
This indicates very clearly the general character of the exopodite and that it is situated above the endopodite, although there are only imperfect traces of the latter.
Both the exopodite and endopodite are shorter than in the trilobites, but bear setae and spines.
Measurements: The exopodite belonging to the fourth thoracic segment is 23 mm.
The thoracic exopodite of this specimen has been very incorrectly figured by Walcott, as it shows no such palmate shaft as he has indicated, but a long blade-like one is outlined, though its entire width is not actually shown.
A slice of Ceraurus pleurexanthemus in which the exopodite happened to be cut in such a way as to show a part of the shaft and some of the setae in longitudinal section.
He designated as exopodite the longer branch which persists in the adult, but since the ambulatory legs of Crustacea are endopodites, that would seem a more likely interpretation.
Thus, in the thoracic limbs of the Malacostraca, the endopodite generally forms a walking-leg while the exopoditebecomes a swimming-branch or may disappear altogether.
In most cases, however, the palp loses its exopodite and it often disappears altogether, while the coxal segment forms the body of the mandible, with a masticatory edge variously armed with teeth and spines.
The jaws have the gnathobasic endites developed at the expense of the rest of the limb, the endopodite and exopodite persisting only as sensory "palps" or disappearing altogether.
The two distal endites are regarded as corresponding to the endopodite and exopodite of the higher Crustacea, the axis or corm of the Phyllopod limb representing the protopodite.
The two anterior pairs of swimming feet have the typical structure, and consist of a protopodite bearing an unjointed exopodite and endopodite.
The posterior antennae are without the flagellum, but are provided with a scale representing the exopodite (fig.
The exopodite of both is two-jointed and bears long bristles at its extremity; the endopodite of the anterior is five-jointed and long, that of the second is three-jointed and comparatively short.
The outer ramus (ex) (exopodite of Huxley) is formed of a single plate with marginal setae.
All the appendages are pediform and bi-ramose; all have a prominent gnathobase, and in all the exopodite carries a comb-like series of secondary processes.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "exopodite" in a variety of sentences. We hope that you will now be able to make sentences using this word.
