Athecanephria
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Athecanephria
(′ath·ə·kə′nef·rē·ə)
(invertebrate zoology) An order of tube-dwelling, tentaculate animals in the class Pogonophora characterized by a saclike anterior coelom.
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Athecanephria
An order of Pogonophora, a group of elongate, tentaculated, tube-dwelling, sedentary, nonparasitic marine worms lacking a digestive system. The coelom in the tentacular region is sac-shaped, with the two ducts set far apart from one another, and their excretory (osmoregulatory) sections lie close to the lateral cephalic blood vessels. The Athecanephria contain two families: Siboglinidae and Oligobrachiidae, with two and five genera respectively. See also Pogonophora.
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McGraw-Hill Science & Technology Dictionary
McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved.
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Mentioned in
Oligobrachiidae
(invertebrate zoology)
Siboglinidae
(invertebrate zoology)
Thecanephria
(pogonophora)
Pogonophora
(pogonophora)