First pair short, situated rather far from the second pair; second pair with the anterior ramus not thicker than the posterior ramus, and hardly more thickly clothed with spines than it, excepting sometimes the few basal segments.
These are attached to beneath the basal articulation offirst pair of cirri; they vary in the several species, from one to five or six on each side, the lowest being always the longest.
First pair apparently remote from the second pair; all five posterior pair lost; first pair short, with the rami unequal by about two segments; segments clothed with several transverse rows of bristles; terminal segments blunt.
In A the cavity of the mouth is seen enclosed by the frontonasal process, the superior maxillary processes and the first pair of visceral arches.
In B the external opening of the mouth has become much constricted, but it is still enclosed by the frontonasal process and superior maxillary processes above, and by the inferior maxillary processes (first pair of visceral arches) below.
At the same time, the interspace between the mouth and first pairof legs of the pupa, (consisting of the seventh and eighth segments of the archetype), is quite lost in the Cirripede by coalescence.
Second pair short, with the segments (and those of the shorter ramus of first pair) somewhat protuberant.
F), which are remarkable for having no appendages between the antennules and the first pairof swimming feet.
A similar function may be suggested for the long and spiny first pair of walking legs in the Spider Crab Platymaia (Fig.
One of my earliest efforts was a few verses anent my first pair of britches, which I, in common, I suppose, with other juveniles, regarded with a great amount of pleasure and pride.
Apex of head directed ventrally, beak arising from the hinder part of the lower side of the head; sides of face contiguous to the front coxae; first pair of wings, when present, of uniform thickness.
First pair of legs inserted within the same body opening as the oral tube; genital apertures surrounded by the sternum.
Apex of head usually directed anteriorly; beak arising from its apex; sides of the face remote from the front coxae; first pair of wings when present thickened at base, with thinner margins.
First pair of legs inserted at one side of the mouth opening; male genital aperture usually on the anterior margin of the sternal plate.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "first pair" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
