meraspis larva
(ARTHROPODA: Trilobita)
The second larval stage with the pygidium located behind the cephalon; the thoracic region will appear during succeeding molts; see holaspis larva.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • meraspis — məˈraspə̇s noun ( es) Etymology: New Latin, from mer (III) + aspis shield more at aspid : a late larva of a trilobite in which the pygidium is beginning to form …   Useful english dictionary

  • holaspis larva — (ARTHROPODA: Trilobita) Final larval stage in which the general adult structures are present and with succeeding molts minor changes and increase of size; see protaspis and meraspis larva …   Dictionary of invertebrate zoology

  • protaspis larva — (ARTHROPODA: Trilobita) Larval period after emergence from the egg, covered by a single, dorsal carapace and consisting of an acron and four postoral segments; see meraspis larva …   Dictionary of invertebrate zoology

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