The animal life of our seashore With special reference to the New Jersey coast and the southern shore of Long Island . Larva of 56 SQUIRTS, POLYPS, AND JELLY-FISHES. a peculiar sieve-like chamber—whose walls aremade up of delicate vessels—into which food parti-cles are carried, and through which the admittedwater passes into a second chamber,which also receives the alimentarycanal. From this second chamberthe water, which bathes the blood-vessels forming the meshes of thesieve-like respiratory sac, is expelledthrough the second chimney-potopening, and thus a constant circu-™;r
The animal life of our seashore With special reference to the New Jersey coast and the southern shore of Long Island . Larva of 56 SQUIRTS, POLYPS, AND JELLY-FISHES. a peculiar sieve-like chamber—whose walls aremade up of delicate vessels—into which food parti-cles are carried, and through which the admittedwater passes into a second chamber,which also receives the alimentarycanal. From this second chamberthe water, which bathes the blood-vessels forming the meshes of thesieve-like respiratory sac, is expelledthrough the second chimney-potopening, and thus a constant circu-™;r ;™: lation is kept up. A remarkablerespiratory sac; A, fact connected witli the circulationof this animal is that the heart,which lies near the base of the respiratory sac, afterbeating a short time suddenly stops, and that witheach renewal of action the direction of the blood-current is reversed. From the peculiar externaltunic which encases the animal, the group to whichthe squirt belongs has been designated the Tuni-cata. A considerably larger form than Molgula is thatwhich has received from fishermen the name of sea-peac
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectmarineanimals, bookye
