rostral notch

rostral notch

Online Dictionary of Invertebrate Zoology. . 2005.

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  • rostral notch — See: rostral incisure [McLaughlin, 1980]. (Class Ostracoda): In anteroventral region of carapace, indentation of each valve below (posterior to) rostrum. Gaping, thus permitting protrusion of antennae when valves are closed (gape itself… …   Crustacea glossary

  • rostral incisure — (Class Ostracoda): Gap below rostrum in anterior margin of valve for protrusion of antenna. (Syn. rostral notch) [McLaughlin, 1980]. (Class Ostracoda): Rostral notch [Stachowitsch, 1992] …   Crustacea glossary

  • rostral incisure — (ARTHROPODA: Crustacea) In Ostracods, a gap between the rostrum in the anterior margin of the valve allowing for protrusion of the antenna (second antenna); rostral notch …   Dictionary of invertebrate zoology

  • rostrum — (1) Anteriorly projecting, unpaired, usually rigid median extension of carapace between eyes or ocular peduncles; (2) anterior beaklike projection of valve margins overhanging incisure or notch (Ostracoda); (3) unpaired anteroventral plate of… …   Crustacea glossary

  • antenna — ( ) [Baba, 2005]. Antennal peduncle consisting of 5 articles, based on Uroptychus. [Baba, 2005] Mobile sensory appendages arising below the eyes at the front of the head. There are two pairs of these appendages, the first and second antennae. The …   Crustacea glossary

  • antennule — First cephalic appendage, usually with peduncle of three articles and two multiarticulate flagella (sometimes antenna 1) [Poore, 2004]. First pair of cephalic appendages (antenna 1) [Holdich and Jones, 1983]. First pair of feelers, or antennae… …   Crustacea glossary

  • beak — (Class Ostracoda): Downwardly directed (anteroventral) projection of carapace margin. Not equivalent to rostrum and not associated with rostral notch [Stachowitsch, 1992] …   Crustacea glossary

  • Somite — Transverse section of half of a chick embryo of forty five hours incubation. The dorsal (back) surface of the embryo is towards the top of this page, while the ventral (front) surface is towards the bottom …   Wikipedia

  • Cingulate cortex — Brain: Cingulate cortex Medial surface of left cerebral hemisphere …   Wikipedia

  • Dentate gyrus — Brain: Dentate gyrus Diagram of hippocampal regions. DG: Dentate gyrus …   Wikipedia

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