. Cuvier's animal kingdom : arranged according to its organization. Animals. BRANCHIOPODA. 443 gradually pointed, and immediately behind them is a terminal, nearly semiglobular joint, replacing a tail, and which IS furnished with an elongated filament, probably an oviduct. I have obsened near the middle of the fifth and four following pairs of feet a globose body, probably analogous to the vesicles which these organs present in Apus. The only species, £. albida, Latr., is very small, and of a whitish colour. It is found in the River of Nice. 2. The AspiDiPHORA, Latr., [or second principal grou
. Cuvier's animal kingdom : arranged according to its organization. Animals. BRANCHIOPODA. 443 gradually pointed, and immediately behind them is a terminal, nearly semiglobular joint, replacing a tail, and which IS furnished with an elongated filament, probably an oviduct. I have obsened near the middle of the fifth and four following pairs of feet a globose body, probably analogous to the vesicles which these organs present in Apus. The only species, £. albida, Latr., is very small, and of a whitish colour. It is found in the River of Nice. 2. The AspiDiPHORA, Latr., [or second principal group of the PhyllopodousiîraMcAiojwotZa] have sixty pairs of legs, all of which are furnished on the outside, near the base, with a large oval vesicle, and of which the two anterior, much larger than the rest, and ramose, resemble antennae. A large shell covers the major part of the upper side of the body, almost entirely disengaged, (shield-like,) posteriorly emar- ginate, and bearing anteriorly, in a confined space, three simple sessile eyes, of which the two anterior are larger and lunular ; and two bivalve capsules containing the eggs, annexed to the eleventh pair of feet. Such are the characters of the genus Apus, Scop., (forming part of the genus Binociilus, Geoffroy, and Limulus, Miill.).—The body, including the shell, is oval, broader, and rounded in front, and narrowed behind, forming a tail ; but if we remove the shell, it is nearly cylindrical, conve.\ above, concave and divided by a longitudinal canal beneath, terninating in an elongated cone. It is composed of thirty joints, equally diminishing in size towards the posterior extremity, and which, with the exception of the seven or eight terminal ones, bear the feet. The ten anterior segments are membranous, soft, and without spines, presenting on each side a small eminence, or knob, with only a single pair of legs to each. Tlie others are more solid and horny, with a row of small spines on the outer edge : the last
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Keywords: ., bookcentury1800, bookdecade1840, bookpublishe, booksubjectanimals
