ganoid scale

ganoid scale
a non-overlapping or partially-overlapping scale, often rhomboidal in shape, with thick outer ganoine layer (enamel-like substance), a middle layer of dentine and an inner dermal, cosmine bony layer. Grows by addition of material above and below, e.g. in Lepisosteidae, Amiidae and Polypteridae. Lepisosteidae have lost the dentine layer. The scales of Lepisosteidae are called lepisosteoid scales as distinct from paleaoniscoid scales of Brachiopterygii

Dictionary of ichthyology. 2009.

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  • Ganoid scale — Scale Scale, n. [Cf. AS. scealu, scalu, a shell, parings; akin to D. schaal, G. schale, OHG. scala, Dan. & Sw. skal a shell, Dan. ski[ae]l a fish scale, Goth. skalja tile, and E. shale, shell, and perhaps also to scale of a balance; but perhaps… …   The Collaborative International Dictionary of English

  • Ganoid scale — Ganoid Ga noid, a. [Gr. ? brightness + oid.] (Zo[ o]l.) Of or pertaining to Ganoidei. n. One of the Ganoidei. [1913 Webster] {Ganoid scale} (Zo[ o]l.), one kind of scales of the ganoid fishes, composed of an inner layer of bone, and an outer… …   The Collaborative International Dictionary of English

  • ganoid scale — noun : a scale typical of the Ganoidei and found in a few other fishes that is composed of an inner layer of bone and an outer layer of ganoin …   Useful english dictionary

  • Scale — Scale, n. [Cf. AS. scealu, scalu, a shell, parings; akin to D. schaal, G. schale, OHG. scala, Dan. & Sw. skal a shell, Dan. ski[ae]l a fish scale, Goth. skalja tile, and E. shale, shell, and perhaps also to scale of a balance; but perhaps rather… …   The Collaborative International Dictionary of English

  • Scale armor — Scale Scale, n. [Cf. AS. scealu, scalu, a shell, parings; akin to D. schaal, G. schale, OHG. scala, Dan. & Sw. skal a shell, Dan. ski[ae]l a fish scale, Goth. skalja tile, and E. shale, shell, and perhaps also to scale of a balance; but perhaps… …   The Collaborative International Dictionary of English

  • Scale beetle — Scale Scale, n. [Cf. AS. scealu, scalu, a shell, parings; akin to D. schaal, G. schale, OHG. scala, Dan. & Sw. skal a shell, Dan. ski[ae]l a fish scale, Goth. skalja tile, and E. shale, shell, and perhaps also to scale of a balance; but perhaps… …   The Collaborative International Dictionary of English

  • Scale carp — Scale Scale, n. [Cf. AS. scealu, scalu, a shell, parings; akin to D. schaal, G. schale, OHG. scala, Dan. & Sw. skal a shell, Dan. ski[ae]l a fish scale, Goth. skalja tile, and E. shale, shell, and perhaps also to scale of a balance; but perhaps… …   The Collaborative International Dictionary of English

  • Scale insect — Scale Scale, n. [Cf. AS. scealu, scalu, a shell, parings; akin to D. schaal, G. schale, OHG. scala, Dan. & Sw. skal a shell, Dan. ski[ae]l a fish scale, Goth. skalja tile, and E. shale, shell, and perhaps also to scale of a balance; but perhaps… …   The Collaborative International Dictionary of English

  • Scale moss — Scale Scale, n. [Cf. AS. scealu, scalu, a shell, parings; akin to D. schaal, G. schale, OHG. scala, Dan. & Sw. skal a shell, Dan. ski[ae]l a fish scale, Goth. skalja tile, and E. shale, shell, and perhaps also to scale of a balance; but perhaps… …   The Collaborative International Dictionary of English

  • Ganoid — Ga noid, a. [Gr. ? brightness + oid.] (Zo[ o]l.) Of or pertaining to Ganoidei. n. One of the Ganoidei. [1913 Webster] {Ganoid scale} (Zo[ o]l.), one kind of scales of the ganoid fishes, composed of an inner layer of bone, and an outer layer of… …   The Collaborative International Dictionary of English

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