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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
(A) Scolex containing four round suckers and a rostellum armed with two alternating crowns of hooks (400 [micro]m).
It has scolex with hooks and suckers and an armed rostellum. The body is termed as proglottids arranged in a linear series.
"A membrane called the rostellum separates the flower's anther from the stigma making self-pollination impossible," explains the longtime curer and exporter.
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.