Alaimus depressus A.L O O F 1971, n.sp.

Alaimus depressus n.sp. (Fig. 20). Dimensions: Female, holotype: L = 0.86 mm; a = 44; b = 3.9; c = 12; V = 43 1 6. Female, paratype: L = 0.94 mm; a = 46; b = 4.3; c = 13; V = 43 1 3. Body coiled into spiral shape in death. Excretory'pore 11 jx from head end. Amphidial sensillae located 51- 56 \...

Full description

Bibliographic Details
Main Author: P. A. A. LOOF
Format: Other/Unknown Material
Language:unknown
Published: 1971
Subjects:
Biodiversity
Taxonomy
Animalia
Nematoda
Enoplea
Enoplida
Alaimidae
Alaimus
Alaimus depressus
Spitzbergen
Online Access:https://zenodo.org/record/8152919
https://doi.org/10.5281/zenodo.8152919
Description
Summary:Alaimus depressus n.sp. (Fig. 20). Dimensions: Female, holotype: L = 0.86 mm; a = 44; b = 3.9; c = 12; V = 43 1 6. Female, paratype: L = 0.94 mm; a = 46; b = 4.3; c = 13; V = 43 1 3. Body coiled into spiral shape in death. Excretory'pore 11 jx from head end. Amphidial sensillae located 51- 56 \L behind head end, or 65- 70 % of the distance from head end to nerve ring. Cuticle smooth, 1 fx thick. Oesophagus widened in posterior seventh. The nerve ring surrounds the oesophagus at 36 - 37 % of its length from head end. Gonad single, posterior. Vagina perpendicular to body axis. The outstanding feature of this species is the peculiar depression of the ventral cuticle immediately behind the vulva. Tail 7 anal body widths long, curved ventrad, terminus subdigitate. Walls of rectum heavily cuticularized. Holotype: Female on slide WT 1219. Paratype: One female (broken) on slide WT 1220. Type habitat and locality: Sample 63. Published as part of P. A. A. LOOF, 1971, FREELIVING AND PLANT PARASITIC NEMATODES FROM SPITZBERGEN, COLLECTED BY MR. H. VAN ROSSEN, pp. 1-86 in Mededelingen Landbouwhogeschool Wageningen 71 on page 61, DOI:10.5281/zenodo.8152982

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