Philodina roseola EHRENBERG, 1832
Philodina roseola; whirling; ventral view. Characteristic for this species which seems to be closely associated with the green algae Haematococcus pluvialis is the bright red or orange stomach.(2)
Philodina roseola; creeping, lateral view.(2)
Philodina roseola; ventral view of the anterior part of a creeping specimen. The right image may show the opening of the ducts of the retrocerebral organ through which the attachment of the rostrum while creeping is enabled.
Philodina roseola; whirling; focus plane on the foot with spurs and the long dorsal oriented toes. Also visible are the two oblong eyespots.
Philodina roseola; the water current which is caused by the cilia is visible by means of the green algae and detritus.
Philodina roseola; whirling. (1)
Philodina roseola, creeping. (1)
Philodina roseola; left: focus plane on the spurs (crop of the above image). Right: focus plane on the 4 toes (arrowheads)
Philodina roseola; two aspects of the trophi; different focus planes. Upper image: caudal view; lower image: cephalic view. Like in Philodina citrina each ramus bears a conspicuous projection called ramus apophysis, a detail which apparently has been overlooked by a lot of rotiferologists and can only be observed by carefully focusing on the caudal side of the trophi (arrowheads). In P. acuticornis with which P. roseola maybe confused (according to DONNER) these projections seem to be lacking or are smaller. (2)
Location: Sprockhövel, Paastr., granite-bird bath (1); Hagen, Germany, garden, bird bath made from sand stone; together with Abrochtha intermedia.
Habitat: Detritus (1); detritus (2). This species seems to occur preferably in ephemeral pools.
Date: 24.8.2008 (1); 14.02.2016 (2);
freshwater life
marine life