Trichocerca longiseta Schrank, 1802
Most likely ID: n.a.
Synonym: n.a.
Sampling location: Simmelried
Phylogenetic tree: Trichocerca longiseta
Diagnosis:
- body spindle-shaped
- anterior two spines of unequal length
- one apical palp organ
- dorsal two inconspicuous keels and ribbon of stripes
- length 300–575 µm (with toes)
- one dorsal eyespot
- stomach and intestine with fat spherules
- retrocerebral organ with elongated sac
- left toe, almost body length
- right toe, short and curved
- 5–7 very short, secondary toes (hard to see)
- cuticle often colored yellowish or reddish
XXX
More images and information on Trichocerca longiseta: Michael Plewka-Freshwater life-Trichocerca longiseta
Fig. 1 a-b: Proalinopsis caudatus. L = 180 µm. A specimen gliding along a detritus flake from left lateral view. Note the dorsal antenna (DA) and the caudal antenna (CA) arising from short papillae. The head is clearly set off from the body. Obj. 40 X.
Fig. 2 a-c: Proalinopsis caudatus. L = 217 µm. A freely gliding specimen from dorsal. Note the lateral antennae with the long setae. The body is covered with a mucilaginous sheath (MS), visible by interspersed bacteria. Obj. 40 X.
Fig. 3 a-b: Proalinopsis caudatus. L = 217 µm. The slightly squashed specimen shown in fig. 2 a-c. ES = eyespot, GG = gastric glands, Int = intestine, MS = mucilaginous sheath, ST = stomach, TO = toes, Vit = vitellarium. Obj. 40 X.
Fig. 4 a-b: Proalinopsis caudatus. L = 216 µm. A transparent, slightly squashed specimen from ventral. Note the mucilaginous sheat (MS) with the interspersed bacteria. Obj. 60 X.
Fig. 5: Proalinopsis caudatus. L = 216 µm. Focal plane on the surface of the mucilaginous sheath with the interspersed bacteria (arrows). The bacteria are 2–4 µm long rods and arranged radially. Obj. 100 X.