rostellum

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rostellum

 [ros-tel´um]
a small protuberance or beak, especially the fleshy protuberance of the scolex (mouth) of a tapeworm, which may or may not bear hooks.

ros·tel·lum

(ros-tel'ŭm),
The anterior fixed or invertible portion of the scolex of a tapeworm, frequently provided with a row (or several rows) of hooks.
[L. dim. of rostrum, a beak]

rostellum

/ros·tel·lum/ (ros-tel´um) pl. rostel´lae   [L.] a small protuberance of beak, especially the fleshy protuberance of the scolex of a tapeworm, which may or may not bear hooks.

rostellum

(rŏ-stĕl′əm)
n. pl. rostella (rŏ-stĕl′ə)
A small beaklike part, such as a projection on the stigma of an orchid or the hooked projection on the head of a tapeworm.

ros·tel′lar adj.

rostellum

[rostel′əm]
Etymology: L, rostrum, beak
1 the anterior of a tapeworm scolex, commonly featuring hooklike jaws.
2 tubular mouth parts of some insects.

ros·tel·lum

(ros-tel'ŭm)
The anterior fixed or invertible portion of the scolex of a tapeworm, frequently provided with a row (or several rows) of hooks.
[L. dim. of rostrum, a beak]

rostellum

  1. a protruding, beak-like structure in some insects.
  2. the protrusion carrying the hooks on the SCOLEX of tapeworms.

rostellum

apical projection of the scolex of a tapeworm, which may or may not bear hooks.
References in periodicals archive ?
Armed (containing rostellar hooks) cysticerci of Taenia spp.
A major question is the relationship between the northern strain and other unarmed (no rostellar hooks) Taenia spp.
A) Scolex showing the lack of a rostellar hook crown in the middle of the scolex, which is a synapomorphy in T.
The authors extensively described the protoscolices and the amount and shape of the rostellar hooklets they found.
oligarthrus, on the basis of the similar size and shape of the rostellar hooks and their origin in the same geographic region (16).