| Philodina citrina, two specimens on the carapax of a dead water flea Daphnia longispina.(2) |
| |
 |
| Philodina citrina, ventral view (1) |
|
|
| Philodina citrina; 3 aspects of the head, slightly different focus planes. The upper image (left) shows the convex upper lip . The lower images show two notches between the sulcus and the trochal discs (arrowheads in the left image). (3) |
| |
 |
| Philodina citrina; anterior part/ head of specimen from (8) |
| |
 |
| Philodina citrina; specimen from (4), focus plane on the rostrum and the red eyespots. |
| |
 |
 |
| Philodina citrina; head of a creeping specimen, dorsal view. Focus plane in the upper image some microns more dorsal than the lower image. Br: pear-shaped brain with elongate oblique orange eyespots. DA: dorsal antenna (the lower image shows the base of the dorsal antenna, BDA); DMG: dorsomedian gland (presumably retrocerebral sac (RCS)); MG: mastax glands; SCG: subcerebral glands ; St: stomach with lumen (L). The arrowheads in the lower image mark the ducts of the subcerebral glands. (4) |
| |
 |
| Philodina citrina; specimen from (4), apical view of the dorsal antenna. |
| |
 |
| Philodina citrina, another specimen from Haspelmoor 2012 (3) |
| |
 |
| Philodina citrina, lateral view. (1) |
| |
 |
| Philodina citrina, lateral view of same specimen as above, detail. (1) |
| |
 |
| Philodina citrina, the same specimen from above image was later attacked and killed by Notommata aurita, which is a predator for bdelloid rotifers. (1) |
| |
 |
| Philodina citrina, creeping specimen, rostrum. |
| |
 |
| |
| Philodina citrina; 3 images of the trophi with dental formula 2/2. The trophi of this species are characterized by two projections (apophysis) on the inner side of the rami (arrowheads in the first image). The two lower images show the trophi of another specimen in cephalic and caudal view.(7) |
| |
 |
| Philodina citrina; foot with spurs and 4 toes (arrowheads). |
| |
 |
| Philodina citrina; specimen from (6); foot with spurs. |
| |
|
|
|
| Location: Gevelsberg, Stefansbachtal Schulzentrum, Grünes Klassenzimmer, pond (1);(2); Haspelmoor, Bavaria, Germany (3): Ohligser Heide, pond (4); NSG Heiliges Meer, Kleines Heiliges Meer (7); St. Mathieu, Bretagne, France, creek (8) |
| Habitat: detritus; between water plants and algae.(1); on desintegrating leaf (2); sphagnum bog (3); (3); periphyton (4); detritus (7); between algae (8) |
| Date: 07.05.2005 (1); 05.06.2010 (2); 27.09.2012 (3); 16.01.2016 (4); 30.10.2015 (6); 27.05.2012 (7); 26.08.2020 (8) |
|
|
