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Definition of Polyplacophora
1. Noun. Small class of marine mollusks comprising the chitons; sometimes considered an order of the subclass Amphineura.
Group relationships: Mollusca, Phylum Mollusca
Member holonyms: Genus Chiton
Generic synonyms: Class
Definition of Polyplacophora
1. n. pl. See Placophora.
Medical Definition of Polyplacophora
1.
Lexicographical Neighbors of Polyplacophora
Literary usage of Polyplacophora
Below you will find example usage of this term as found in modern and/or classical literature:
1. Structural and Systematic Conchology: An Introduction to the Study of the by George Washington Tryon (1883)
"ORDER polyplacophora. Animal symmetrical, with a broad foot; no eyes or tentacles ;
head extensible into a proboscis ; mouth furnished with jaws and lingual ..."
2. The Standard Natural History by John Sterling Kingsley, Frederich Anton Heller von Hellwald, Elliott Coues (1884)
"Nothing is known of the embryology of cither form. ORDER III. —polyplacophora.
The chitons are л croup which have made no little trouble views;я, anterior, ..."
3. Guide to the Systematic Distribution of Mollusca in the British Museum by John Edward Gray (1857)
"Gill interrupted over the head, of small and filiform strands. 1. H. pectinatus.
Suborder VII. polyplacophora. Gills in two lamellar series ..."