rostellum

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Related to rostellum: oncosphere, coracidium

rostellum

[rä′stel·əm]

(biology)

The anterior, flattened region of the scolex of armed tapeworms.

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References in periodicals archive ?

(A) Scolex containing four round suckers and a rostellum armed with two alternating crowns of hooks (400 [micro]m).

Larvas de Taenia taeniformis (Strobilocercus fasciolaris) (Cestoda: Cyclophyllidea) en roedores comensales de Argentina: potencial riesgo sanitario

It has scolex with hooks and suckers and an armed rostellum. The body is termed as proglottids arranged in a linear series.

Ectoparasites and endoparasites among Oreochormis Niloticus (tilapia)

The pollen of the vanilla flower is covered by an anther and the stigma is protected by a covering shield, the rostellum. Before the pollen can be placed on the pistil, the rostellum must be lifted.

Seychelles: the secret of vanilla; Vanilla is a mysterious and beautiful orchid vine which for centuries enchanted the world with the aroma and flavour of its fruits. Tony Mathiot has followed the trail of its fragrance back to its primeval origins and discovers how once upon a time vanilla brought fortune and prosperity to the Seychelles

"A membrane called the rostellum separates the flower's anther from the stigma making self-pollination impossible," explains the longtime curer and exporter.

Boosting a flavorful bean: entrepreneurs in Veracruz, Mexico, are cultivating the comeback of the region's formerly lucrative vanilla industry

The specimen possessed a rudimentary rostellum, a distinguishing characteristic that, according to Rodgers (1941), separated this species from two similar North American species, Anonchotaenia globata and A.

Orthoskrjabinia rostellata (Cestoidea: Dilepididae), from the brown-headed nuthatch, Sitta pusilla (Passeriformes: Sittidae), from Northeastern Texas. (General Notes)