. Animal parasites and messmates. Parasites. PARASITES FREE WHILE YOUNG. 145 The Iones thoracicus, the Cepes distortus, the Gyges bramchialis, and so many others live, like the Bopyri, in the thoracic cavity of different decapod crustaceans, and the females throw off at the same time their organs of sense and all their fishing and travelling apparatus. Eathke, a learned professor of Konigsberg, was the first to notice an isopod, known under the name of Phryxus p&gwri, which lives on the stomach of a pagurus, attached to it by its back, so that the stomach of the parasite is turned, like th
. Animal parasites and messmates. Parasites. PARASITES FREE WHILE YOUNG. 145 The Iones thoracicus, the Cepes distortus, the Gyges bramchialis, and so many others live, like the Bopyri, in the thoracic cavity of different decapod crustaceans, and the females throw off at the same time their organs of sense and all their fishing and travelling apparatus. Eathke, a learned professor of Konigsberg, was the first to notice an isopod, known under the name of Phryxus p&gwri, which lives on the stomach of a pagurus, attached to it by its back, so that the stomach of the parasite is turned, like that of the pagurus, towards the partitions of the shell. The tail with the branchial appendages is always directed towards the orifice of the shell. The male is very small and never leaves the female. The Athelca cladophora is another bopyrian living on the abdominal region of a pagurus, which always chooses shells infested by Alcyonia. Another bopyrian, the Prosthetes cannelatus, lives on the abdomen of an ordinary pagurus. Mons. Bucholz has recently described a new kind of isopod, allied to the lyriopes, which lives on the Hemioniscus. This isopod fixes itself to a Balanus (B. ovularis), and the female preserves only four of her seg- ments with their appendages: she had fifteen, when young. Thus she throws off nearly all her appendages which have become useless. The male of this isopod, which inhabits the bay of Christiansand, is not yet known. %».-aT»»'M- * kei. A figure of the Another parasite of this group has natural size is given been observed by Fr. Miiller at Des- atthe8ide- terro, on the coast of Brazil. It bears the name of. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Beneden, M. van (Pierre Joseph), 1809-1894. New York, D. Appleton and Co.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectparasit, bookyear1876
