. Animal life as affected by the natural conditions of existence. Animal ecology. Fig. 21.—a. Pinnotheres Holothurioe of the natural size ; &, degenerate water-lungs, with the distended portion, c, in which a small Pinnotheres is established. To these examples I will add one more which I myself have studied. There is a peculiar family among the crabs, the Pinno- theridse, of which various species live in the branchial cavities of many Mollusca ; some live in Serpulse, and others (fig. 21) which I have found off the Philippine Islands live in the water- lungs, as they have been called, of H
. Animal life as affected by the natural conditions of existence. Animal ecology. Fig. 21.—a. Pinnotheres Holothurioe of the natural size ; &, degenerate water-lungs, with the distended portion, c, in which a small Pinnotheres is established. To these examples I will add one more which I myself have studied. There is a peculiar family among the crabs, the Pinno- theridse, of which various species live in the branchial cavities of many Mollusca ; some live in Serpulse, and others (fig. 21) which I have found off the Philippine Islands live in the water- lungs, as they have been called, of Holothurians. These are elongated branched tubes in direct communication with the terminal intestine or cloaca, so that parasites can enter them. 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 Semper, C. (Carl), 1832-1893. New York, D. Appleton
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishernewyo, bookyear1881
