desmoneme

desmoneme

[‚dez·mə′nēm]
(invertebrate zoology)
A nematocyst having a long coiled tube which is extruded and wrapped around the prey.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Tentacles usually five to six, bifurcated about middle, upper branch with terminal nematocyst cluster, lower branch terminating in an adhesive pad armed with stenotele and desmoneme nematocysts.
These light sensitive neurons are found integrated into arsenals that include the stinging cnidocytes as well as desmoneme cnidocytes, used to grasp prey, and sticky isorhiza, which help the hydra to summersault at 10cm a day.
A one-way ANOVA was used to analyze the efficacy of grouping desmoneme or eurytele measurements by clade or by salinity.
caspia has two types of nematocysts--euryteles and desmonemes (Fig.
For desmonemes, mean nematocyst length varied by 0.08 [micro]tm or less after 20 nematocysts.
In the tentacles of 2-4-h-old larvae four types of nematocytes, namely atrichous isorhiza (AI), stenotele (S), desmoneme (D), and microbasic mastigophore (MM), were observed.
Nematocyst discharge in Hydra vulgaris: differential responses of desmonemes and stenoteles to mechanical and chemical stimulation.
1), with stenoteles (ST), desmonemes (DS), and heterotrichous microbasic euryteles (HME) sharing dominant percentages.
adspersus experiment, Nubble nudibranchs retained a significantly higher percentage of desmonemes (DS) than the Shoals population, and significantly fewer HME and holotrichous anisorhizas (HoA) (Fig.
crocea ST, DS, HeA, HME, BI * Nematocyst types are abbreviated as follows: MM, microbasic mastigophores; MA, microbasic amastigophores: ST, stenoteles; DS, desmonemes; HeA, heterotrichous anisorhizas: HME, heterotrichous micro-basic euryteles; BI, basitrichous isorhizas.
At least four types of capsules have been observed in the mature planula [ILLUSTRATION FOR FIGURES 10-12 OMITTED]: a large clear capsule (stenoteles), a large dark capsule (desmonemes), a small dark capsule (microbasic heterotrichous b-mastigophores), and a metachromatic bullet-shaped capsule (microbasic heterotrichous b-mastigophores with inclusions).
Fully differentiated nematocytes of planulae contain either a large clear capsule (stenoteles), a large dark capsule (desmonemes) or a bullet-shaped capsule (microbasic heterotrichous b-mastigophores with inclusions); no fully differentiated nematocytes housing the small dark capsules (microbasic heterotrichous b-mastigophores) are found in the planula.