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n. pl.1.(Zool.) Threadlike defensive organs, composed largely of nettling cells (cnidæ), thrown out of the mouth or special pores of certain Actiniæ when irritated.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
(1996): "Prospeccion arqueologica de caracter minero y metalurgico: fuentes y restos", Acontia, 2, pp.
Taxa Locality of collection Acontiinae Acontia cheo Druce (*) Irapuato Bogisoro laverna (Druce) (*) Irapuato Lithacodia synochitis Irapuato Grote & Robinson (*) Tarache aprica (Hubner) Irapuato Tarache areli Strecker Irapuato, Dolores Hidalgo, Leon Tarache bilimeki (Felder Irapuato & Rogenhofer) Tarache quadriplaga Smith Irapuato Tarache tenuicola Irapuato (Morrison) (*) Tarachidia semiflava Guenee Irapuato, Leon Acronictinae Acronicta interrupta Irapuato Guenee (*) Simyra insularis (Henrrich- Irapuato Schaffer) (*) Amphipyrinae Amphipoea americana Irapuato Speyer (*) Callistege diagonalis Dyar Irapuato Chalcopasta howardi Irapuato, Leon H.
Following this protocol, the mesoglea turns to a deep blue color while the cytoplasmic elements and epithelia differentiate to pink-reddish tones, clearly highlighting loaded nematocysts structures (e.g., mesenterial filaments, acontia, acrorhagi).
In early transmission electron microscopy (TEM) studies of nematocysts from sea anemone acontia and tentacles.
Tentacles and acontia were cut from each individual.
For this Acontia moth (above), looking gross is great!
"When I was on vacation in Maryland I found the larvae of a looper moth - the curve-lined acontia - that really was neat.
As another example, larger defensive nematocysts in the acontia of Metridium farcimen reflect the relatively higher predator densities in its subtidal habitat, by comparison with the smaller acontial nematocysts associated with the shallower habitat of M.
When attacked, the anemones contract and extrude many long, thread-like mesenterial filaments (the acontia) through the mouth and column wall (Hyman, 1940).
The scaffolding in orbitotemporal region changes with the body-plan, presenting reductions of some cartilages in serpentiform skinks like Lygosoma sp., Acontias meleagris and Chalcides sepsoides (Pearson 1921; Bellaris & Kamal 1981).