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Related to ctenidium: ctenidia


n. pl. cte·nid·i·a (-ē-ə) Zoology
A comblike structure, such as the respiratory apparatus of a mollusk or a row of spines in some insects.

[New Latin, from Greek kteis, kten-, comb.]


n, pl -ia (-ɪə)
(Zoology) one of the comblike respiratory gills of molluscs
[C19: New Latin, from Greek ktenidion, diminutive of kteis comb]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ctenidium - comb-like respiratory structure serving as the gill of certain mollusks
branchia, gill - respiratory organ of aquatic animals that breathe oxygen dissolved in water
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References in periodicals archive ?
Ctenidium (black arrow) anterior to spiracle (white arrow) on abdominal segment VIII (adult Frankliniella).
When suspension feeding, the primary role of the radula is to grab and direct mucus ropes of food collected on the ctenidium to the mouth (Shumway et al.
In terms of its external morphology there are no cephalic lappets or laterally expanded snout flanges, nor is a right post-ocular peduncle evident, and the ctenidium is monopectinate (Herbert unpubl.
Femur II sin ctenidium apical posteroventral, puede haber algunas setas presentes pero usualmente no estan tan estrechamente unidas Sarcophaga Meigen 13'.
Legs with coxae and femora with gray microtomentum, trochanter and knees (basal femoral part) reddish with thin gray microtomentum, tibiae reddishbrown; middle femur without posteroventral ctenidium on its apical portion, 2 anterior setae, row of posteroventral setae on basal half; middle tibia with 2 anterdorsal setae, 1 anteroventral seta, 2 posterior setae; hind femur with rows of anterodorsal, anteroventral, and posteroventral setae; hind tibia with 2 or 3 anterodorsal setae, 2 anteroventral seta, and 2 posterodorsal setae; tarsi blackish.
Differential taxa of the alliance (against Filipendulo vulgaris-Helictotrichion pratensis): Anacamptis pyramidalis, Asperula cynanchica, Ctenidium molluscum, Festuca guestfalica subsp.
Ctenidium en el VIII segmento abdominal posterior al espiraculo (Figura 24); con 2 hileras de setas continuas en el ala antenor; seta posteromarginal I (pm I) presente en la mayoria de las especies; habitualmente con 8 segmentos en la antena; generalmente 2 pares de setas anteroangulares mayores (aaM) (Figura 25) (excepto el grupo minuta, algunas especies) Frankliniella.
The ctenidium (gill) is present in pomatiopsids and hydrobiids and vestigial or absent in assimineids.
For most gastropods, the ctenidium, or gill, functions solely as a respiratory organ.