Philodina acuticornis odiosa MILNE 1916
Philodina acuticornis odiosa; whirling. In some population this species tends to have a reddish integument and mabe confused with Philodina roseola.
Philodina acuticornis odiosa; left: crop of the above image. Focus plane on the bulges between upper lip and trochal columns. Right: head of the same specimen, brightfield.
Philodina acuticornis odiosa; attached to a Zygnema filament, whirling.
Philodina acuticornis odiosa; left image, whirling; focus plane on the bulges between upper lip and trochal columns. Right: foot with characteristic spurs.
Philodina acuticornis odiosa; another specimen from (2).
Philodina acuticornis odiosa; crop of the above image, showing the bulges between upper lip and trochal columns. The bulges are triangle-shaped and do not reach the sulcus. (2)
Philodina acuticornis odiosa; toes of 3 different specimens. DONNER (1965) reports that P. acuticornis is the only Philodina species which keeps the dorsal toes stretched (upper images). The lower image shows the dorsal (dT) and ventral toes (vT) and the tips of the spurs. (3) So this might be a feature that separates P. acuticornis from P. roseola.
Philodina acuticornis odiosa; specimen from (4)
Location: Hattingen, Wodantal, puddle, together with Cephalodella auriculata, Notommata cyrtopus, Notholca squamula (1); Anhausen near Augsburg, fishpond (2) Hagen, garden, bird bath (3); Hattingen Oberstüter
Habitat: between algae (Zygnema sp.) ; Periphyton (2); detritus with green algae (3); moss on roof
Date: 2.3.2014 (1); 02.10.2013 (2); 26.02.2016 (3); 02.11.2014 (4)
freshwater life
marine life