. Cuvier's animal kingdom : arranged according to its organization. Animals. 400 ANNELIDES. M. Moquin Tandon has described a subgenus by the name of Aulastoma, the mouth of which has merely longitudinal folds, several in number. In the suite of Nephelis, should be placed the Branchiohdellia of M. Odier, remarkable for having tvro jaws and no eyes. One species only is known, which lives upon the gills of the Crab. All these subdivisions have the anterior sucker a little separated from the body : the two next are distinguished by a further separation, composing almost a segment, having a transve
. Cuvier's animal kingdom : arranged according to its organization. Animals. 400 ANNELIDES. M. Moquin Tandon has described a subgenus by the name of Aulastoma, the mouth of which has merely longitudinal folds, several in number. In the suite of Nephelis, should be placed the Branchiohdellia of M. Odier, remarkable for having tvro jaws and no eyes. One species only is known, which lives upon the gills of the Crab. All these subdivisions have the anterior sucker a little separated from the body : the two next are distinguished by a further separation, composing almost a segment, having a transverse aperture. HiEMOCHARis, Sav.,— In addition to this conformation, have eight eyes, a slender body, and rings not very distinct. Their jaws do not project, and are scarcely visible : they do not swim, but advance in the manner of the caterpillars termed geometrical, and attach themselves particularly to fishes. They are the Piscicola of Blainville, and the Icthiobdella of Lamarck. One species is common upon the Carp, (if. piscium, Linn.). Albiones, Sav. (Pontoidella, Leach and Blainville),— Differ from the preceding by having the body bristled with tubercles, and eyes only six in number. They live in the sea. There is a parasite on the Torpedo, named Branchellion, very similar to a Leech, but which appears to have a little mouth at the hind border of its anterior disk, which last is borne on a slender neck, and at the base of it is a small hole for the generative organs. The lateral edges of its folds, which are compressed and salient, have been regarded as branchiae, but I cannot perceive vessels ramifying upon them ; the epidermis is ample, and envelopes the creature like a very loose sac. Clepsines, Sav. {Glossoporis, Johnson),— Ranks commonly also among the Leeches. The body is widened, with a disk only behind, and the mouth is formed into a trunk, and not suctorial ; but it is not impossible that some of these belong to the family of Planariœ. Phillines, Oken, and
Size: 2932px × 852px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1840, bookpublishe, booksubjectanimals
