conchostracan carapace ribs

conchostracan carapace ribs
Strong radial ridges radiating from and across umbo of conchostracan carapace, with intervals of variable width between any pair and commonly nodose at intersections of growth lines; may be partial or embryonic in expression; synonyms include longitudal striae, carinae, radials, diagonal ridges, radial costae, and keels. (Characterize Leaiidae, never exceeding five in number on any given leaian valve; ribs also occur in Protomonocarina and Limnadiopsileaia.) [Moore and McCormick, 1969].

Crustacea glossary. . 2011.

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Look at other dictionaries:

  • conchostracan carapace ribs — (ARTHROPODA: Crustacea) Strong radial ridges with intervals of variable width radiating from and across the umbo, usually nodose at intersections of growth lines …   Dictionary of invertebrate zoology

  • conchostracan carapace interval — (ARTHROPODA: Crustacea) Any space between two ribs, costae, or costellae of the conchostracan carapace …   Dictionary of invertebrate zoology

  • conchostracan carapace interval — Space between any 2 ribs, costae, or costellae on conchostracan carapace [Moore and McCormick, 1969] …   Crustacea glossary

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