Plectus cirratus parietinus C.A.Allgén
- Dataset
- Terrestrial nematodes from Jan Mayen
- Rank
- SUBFORM
- Published in
- Allgén, C. A. (1953): Terrestrial nematodes from Jan Mayen. Annals and Magazine of Natural History 12 (6): 665-688, DOI: 10.1080/00222935308654469
Classification
- kingdom
- Animalia
- phylum
- Nematoda
- class
- Chromadorea
- order
- Plectida
- family
- Plectidae
- genus
- Plectus
description
Dimensions. -- Body-length = 0.721 mm., max. width = 0.0 3 3 mm., o esophagus = 0.1 6 4 mm., tail = 0.073 mm., α = 21.85, β = 4.40, γ, = 9.88.
discussion
I n the sample h'om b 3 was f o u n d a female of this genus, which seems to be closely related to P. parietinus, to which it is similar in the shape of the head, provided with well = developed lips, the (esophagus h a v i n g a large bulb a n d in the tail, being short, conical, r o u n d e d a t the posterior end, with pointed t i p a n d containing three glands in the anterior half. Especially characteristic of this form is ~ he very spacious buccal cavity (tube), which is twice as long as wide. I t s length is 13.11 ~ a n d width 6.56 ~. Also remarkable is the v e r y strongly developed cardia of this new form. F i n a l l y the lateral organs are s i t u a t e d at the middle of the buccal t u b e a n d consisting of a simple circular sling.