the anterior and dorsal projection of the sagittal otolith, dorsal to the sulcus

Dictionary of ichthyology. 2009.

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  • antirostrum — n. [Gr. anti, against; L. rostrum, beak] (ARTHROPODA: Chelicerata) Terminal segmental appendages of some mites …   Dictionary of invertebrate zoology

  • anterorostrum — antirostrum …   Dictionary of ichthyology

  • excisura major — the notch in the margin of the fish otolith separating the rostrum and antirostrum …   Dictionary of ichthyology

  • rostrum — (plural rostra)) 1) any projecting snout or beak; (plural rostra) 2) produced anterior part of the skull, e.g. in Elasmobranchii and Acipenseridae; (plural rostra) 3) the bony shelf overhanging the cavity where the esca of Ceratiidae is housed;… …   Dictionary of ichthyology

  • sagitta — (plural sagittae)) the otolith in the sacculus, the largest of the otoliths except in Cyprinidae and Siluridae. Also called sacculith. It has been used for identification of species, for identification from remains in the diet of other organisms …   Dictionary of ichthyology

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