Trocheta tunisiana Ahmed, Bielecki, Cichocka, Tekaya, Gorzel & Harrath 2013

Trocheta tunisiana Ben Ahmed et al. 2013

(Fig. 4E)

Diagnosis: The colour of living specimens is light brown. Dorsally, there are four longitudinal stripes. The ventral surface is always somewhat lighter than the dorsum. The head has four pairs of eyes. In the postclitellar region, lateral keels are present. Annulation is typical for Trocheta species. The complete somite is divided into eight annuli, the first two of which are short, followed by three longer ones and another three short annuli. The gonopores are separated by two annuli.

Habitat: Trocheta tunisiana has been collected in smaller brooks and springs occurring in the mid and higher elevations (usually over 350 m asl.). It is distributed in the northwest of Tunisia.

Distribution: This species is so far known only from Tunisia: the type locality is spring Zaga in Béja governorate (36.58965N, 9.5693E), moreover it was recorded from Spring Oued El Madin (36.90107N, 9.16501E); stream Oued el Melih Ouechtéta (36.97467N, 09.01214E) from the same governorate and in spring Aïn Sobh (36.57173N, 08.54565E) and spring Touiaytia, Aïn Draham (36.74456N, 08.58686E) of Jendouba Governorate.