Definition of Peritreme. Meaning of Peritreme. Synonyms of Peritreme

Here you will find one or more explanations in English for the word Peritreme. Also in the bottom left of the page several parts of wikipedia pages related to the word Peritreme and, of course, Peritreme synonyms and on the right images related to the word Peritreme.

Definition of Peritreme

Peritreme
Peritreme Per"i*treme, n. [Pref. peri- + Gr. ? a hole.] (Zo["o]l.) (a) That part of the integument of an insect which surrounds the spiracles. (b) The edge of the aperture of a univalve shell.

Meaning of Peritreme from wikipedia

- used in respiration). In some mites, the stigmata are ****ociated with peritremes: paired, tubular, elaborated extensions of the tracheal system. The higher...
- (a snail s****), the lip is the free margin of the peristome (synonym: peritreme) or aperture (the opening) of the gastropod s****. In dextral (right-handed)...
- irregularly. Each posterior spiracle (anal spiracle) lacks a clearly defined peritreme and each has three spiracular openings (in mature larvae). These are usually...
- based on the presence of a broadened flattened telson, a broad flattened peritreme encircling the ozopores, paranota with a thin lateral edge, the ozopores...
- with 10 or more robust spines around the spiracular area, incomplete peritremes, an indistinct or absent button, and bands of small spines on each segment...
- pedicel. Larvae have two posterior spiracles with a thick and unbroken peritreme, and (like other Calliphoridae larvae) containing straight slits. There...
- base. The parietal wall is covered with a thick callus which renders the peritreme complete. This species occurs in the Pacific Ocean off Lower California...
- The parietal wall is covered with a very thick callus which renders the peritreme complete. This and other Western American species were attributed to Alvinia...
- base. The parietal wall is covered with a thick callus,which renders the peritreme complete. This species occurs off the Española Island, Galapagos Islands...
- segment. The posterior spiracles are not hidden in the body cavity, and the peritreme of these spiracles is open. The larvae can be distinguished from its New-World...