Lexic.us

Definition of Nemertina

1. Noun. Proboscis worms.

Definition of Nemertina

1. n. pl. An order of helminths usually having a long, slender, smooth, often bright-colored body, covered with minute vibrating cilia; -- called also Nemertea, Nemertida, and Rhynchocœla.

Medical Definition of Nemertina

1. An order of helminths usually having a long, slender, smooth, often bright-coloured body, covered with minute vibrating cilia; called also Nemertea, Nemertida, and Rhynchocaela. The mouth is beneath the head, and the straight intestine at the posterior and. They have a very singular long tubular proboscis, which can be everted from a pore in the front of the head. Their nervous system and blood vessels are well developed. Some of the species become over one hundred feet long. They are mostly marine and seldom parasitic; a few inhabit fresh water. The two principal divisions are Anopla and Enopla. Origin: NL. See Nemrtes. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Nemertina

Literary usage of Nemertina

Below you will find example usage of this term as found in modern and/or classical literature:

1. Text-book of Comparative Anatomy by Arnold Lang, Ernst Heinrich Philipp August Haeckel (1891)
"The most important head muscles are those which serve for moving the seizing hooks. IV. The Proboscis of the nemertina and ..."

2. Elements of Comparative Anatomy by Carl Gegenbaur (1878)
"Lateral stylets having the same relation to the median one as in the proboscis of the nemertina are often observed; so that we may conclude that ..."

3. The Evolution of Man: A Popular Scientific Study by Ernst Heinrich Philipp August Haeckel (1910)
"In any case the nemertina have a good deal of phylogenetic interest as the ... They are related, on the one hand, to the nemertina and their immediate, ..."

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