Didymodactylus
Didymodactylus Milne, 1916
Synonym Didymodactylos Milne (ref. ID; 1345)
ref. ID; 1923
Foot with 2 toes. Single species. (ref. ID; 1923)
ref. ID; 3137
With two toes on the foot. These toes correspond probably to the ventral toes of the other Bdelloidea. Without eye-spots and oviparous. After a thorough of Donner the de Koning's species Didymodactylos spec., 1930, syn.: Didymodactylos duplicalcar de Koning, 1947 is a species of the genus Philodina called by Donner Philodina de Koning, 1950. The genus Didymodactylos is also newly monotypic. (ref. ID; 3137)
- Didymodactylus carnosus Milne, 1916 (ref. ID; 1345)
- Didymodactylos carnosus Milne, 1916 (ref. ID; 2274)
Descriptions
Large, stout, light brown in colour, mouth and longitudinal folds strong, plicate on anal segments. Rostrum broad, the lamella wider than the rostrum has two semi-circular lobes with a connecting bridge. Dorsal antenna short and stumpy. Foot short and stout, first foot segment with dorsal hump, spurs shapely, fairly long and pointed, on cushions, with no interspace, only two small blunt toes. Discs much wider than head, the upper lip has two lobes, the small space between being wider at its base than at the top. Its exact shape was rather difficult to determine because of the presence of a small triangular spine right in its centre, the spine probably springing from the sulcus base which, however, was not easily seen. Dorsal formula 3/3+1 by extraction, teeth taper gradually, uncus fairly large, only slightly cut out, border light brown narrow and not rough. (ref. ID; 2274)
Measurements
Length of creeping animal 440; length of feeding animal 210; width across trochal discs 60; width across head 45; length between anterior edge of discs and the mastax 63; length of unci 22.5; length of spurs 15 µm. (ref. ID; 2274)