Adineta vaga vaga (Davis 1873

Adineta cf. vaga vaga (Davis, 1873)

(Fig. 3C)

Callidina vaga Davis 1873: 201

Adineta vaga – Donner 1965: 295, Kutikova 2005: 275

N o t e s. This morphospecies was identified as typical form of the Adineta vaga (Davis, 1873), which is the very common oviparous species characterized by rostrum with two lobes bearing not bristles but only very short cilia (Fig. 3C). Iakovenko et al. (2015) pointed that newly described A. emsliei Iakovenko et al., 2015 strongly resembles A. vaga. However, the registered morphospecies (1) was colourless, not bright orange or brown; (2) has triangular simple spurs, not needle-formed based on bulbs. These diagnostic peculiarities approached the observed rotifers much closer to A. vaga and distingushed them from A. emsliei. However, the morphometric analysis shows the similarity with A. emsliei in basic proportions of the head, body and foot. Also the rump of the species is rather long but narrower (Table 2). Obviously, for more correct comparison, more data (measured individuals) are needed.