adoral


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adoral

[‚a′dȯr·əl]
(zoology)
Near the mouth.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
(2005), trichodinids are one of the most common parasitic ciliates that are well characterized by two main features: the morphology of the denticles in the adhesive disc and the development of the adoral ciliary spiral.
In theory, [e.sub.p] could be measured using the adoral ends of the posterior paired interambulacra, in the same general manner as [e.sub.a].
Los parasitos de la familia Caligidae se caracterizan por presentar una membrana adoral que rodea el cefalotorax que les permite mantenerse firmemente adheridos a la superficie corporal del pez, protegiendolos de condiciones ambientales adversas, como es el caso de bajas concentraciones de salinidad.
Lateral lips with two pairs of adoral setae ([or.sub.1], [or.sub.2], 12-16), setiform, barbed.
Hypostome subrectangular in shape and cone shaped distally; with 4 pairs simple hypognathal setae (hg1-hg4) and 2 pairs adoral setae; with dot like lobes (Fig.
The arms were measured on the adoral (sucker-bearing) side, from the tip of the arm to the mouth.
Two pairs of setiform, curved distally, slightly barbed adoral setae (12-16).
Characterised as a medium-sized trichodinid with disc-shaped body; convex adoral surface with ciliature of 307.0[degrees] [+ or -] 12.6 (292-325, 11); aboral side with slightly concave adhesive disc; centre of adhesive disc did not show granules in silver-impregnated specimens.
Hypostome subrectangular in shape and cone shaped distally, with 4 pairs simple hypognathal setae (hg1-hg4) and 2 pairs adoral setae, with dot like lobes (Fig.
Most annelid larval forms, feeding or not, can be readily related to the trochophore ground plan, which Nielsen (2001, 2004) defined as a larva bearing an apical tuft, a preoral ciliated band derived from trochoblasts (prototroch), an adoral ciliary zone, and postoral metatroch, gastrotroch, and telotroch, all of which bands consist of multiciliate cells with compound cilia.
Surprisingly, Pernet (2003) observed complete downstream-collecting ciliary systems with pro-totroch, adoral ciliary zone, and metatroch in larvae of the sabellid polychaetes Schizobranchia, Demonax, Myxicola, and Pseudopotamilla.
The parasite was characterized as a large trichodinid with disc-shaped body; convex adoral surface with ciliature of about 370[degrees] [+ or -] 6.7 (360-384) measured in 17 specimens; central contractile vacuole; aboral side with slightly concave adhesive disc provided by 26.0 [+ or -] 1.2 (23-29, 55) denticles and central area of the adhesive disc provided with dark granules.