. The biology of marine animals. Marine animals; Physiology, Comparative. 544 THE BIOLOGY OF MARINE ANIMALS back and tail, and occasionally the legs. Extracellular luminescence is also encountered in the mysid Gnathophausia. This animal discharges a lumi- nous secretion from glands lying at the base of the mouth parts. The glands consist of a reservoir, into which the cells discharge their contents, and a duct opening to the exterior through a papilla (52). Among decapods some Photogen band Foot. Triangula, photoge organ Photogen cords in siphon Fig. The Piddock Pholas dactylus, a Lumine
. The biology of marine animals. Marine animals; Physiology, Comparative. 544 THE BIOLOGY OF MARINE ANIMALS back and tail, and occasionally the legs. Extracellular luminescence is also encountered in the mysid Gnathophausia. This animal discharges a lumi- nous secretion from glands lying at the base of the mouth parts. The glands consist of a reservoir, into which the cells discharge their contents, and a duct opening to the exterior through a papilla (52). Among decapods some Photogen band Foot. Triangula, photoge organ Photogen cords in siphon Fig. The Piddock Pholas dactylus, a Luminescent Lamellibranch that Bores in Stone (Left) Ventral view of an animal; (right) appearance of a luminous animal in the dark. (After Panceri.) of the deep-sea shrimps such as Plesiopenaeus, Systellaspis and Hetero- carpus discharge a luminous secretion from glands about the mouth and at the bases of the limbs in the anterior thoracic region (Fig. ). These glands are small and numerous, and each consists of a group of eosino- philic cells discharging into a small central fundus, from which a fine duct leads to the exterior. The secreted material is forcibly expelled away from the animal, and gives rise to a luminous cloud (1).. 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 Nicol, J. A. Colin (Joseph Arthur Colin), 1915-. New York, Interscience Publishers
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Keywords: ., bookcentury1900, booksubjectmarineanimals, booksubjectphysiology
