How to use Dorsum in a sentence

dorsum
  • Respiration is effected by means of external gills placed along both sides of the dorsum of the abdomen and hinder segments of the thorax.

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  • There are no fungiform papillae on the dorsum, but a few inconspicuous ones scattered along the sides of the organ.

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  • Bases of the rhinophores surrounded by a sheath; dorsal papillae tuberculated and club-shaped, in a single row on either side of the dorsum; no cnidosacs.

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  • It seems probable that it is identical with one of the open sacs in which each shell-plate of a Chiton is formed, and the series of plate-like imbrications which are placed behind the single shell-sac on the dorsum of the curious slug, Plectrophorus, suggest the possibility of the formation of a series of shellsacs on the back of that animal similar to those which we find in Chiton.

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  • In this position the outer margin of the wing is the costa, the inner the dorsum, and the hind-margin the termen.

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  • Both foreand hindwings are usually present, both pairs being membranous, the hindwings small and not folded when at rest, each provided along the costa with a row of curved hooks which catch on to a fold along the dorsum of the adjacent fore-wing during flight.

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  • Dorsum furnished on either side with papillae, at the base of which are ramified appendages.

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