Ecrobia vitrea (Risso, 1826)

Mabrouki, Youness, Taybi, Abdelkhaleq Fouzi & Glöer, Peter, 2020, New additions to the freshwater gastropod fauna (Gastropoda: Hydrobiidae, Lymnaeidae) of Morocco, Ecologica Montenegrina 31, pp. 40-44 : 43

Ecrobia vitrea (Risso, 1826) ( fig. 6 )

Distribution: West Mediterranean species, its distribution in Europe ranges from the Iberian Peninsula to Malta, Italy and Albania ( de Jong et al. 2014; Glöer 2019). Although its occurrence in North Africa seems obvious, but there no clear evidence on its presence in Morocco, hence we record it for the first time in the north-eastern part of the country ( fig. 1 ).

Sampling site: Marchica lagoon at Bokana (35°14'17.246" N 2°53'55.892" W) ; Chebbak spring (35°05'18.2" N 2°21'04.0" W) ; Moulouya River mouth at Saidia (35°7'22.739" N 2°20'28.356" W) .

Habitat: This Mediterranean mud snail is a typical inhabitant of brackish waters. In the studied area, it was found in slightly brackish water systems near the Mediterranean coast, such as the River mouth and backwaters of the Moulouya at Saidia ( fig. 11 ), and even in ponds on the dune ridge of Nador lagoon.

Associated species: Mercuria gauthieri and marine gastropods.

Figures

Figure 1. Distribution range of the found species in Morocco.

Figures. 2-8. 2: Shell of Pseudamnicola luteola, 3: penis in situ of P. luteola, 4: shell of Mercuria gauthieri, 5: penis in situ of M. gauthieri, 6: shell of Ecrobia vitrea, 7: shell of Radix labiata, 8: female and male copulatory organ. Abbreviations: bc: bursa copulatrix, bd: bursa duct, e: eye, m: muscle, p: penis, pht: phallotheca, pl: penial lap, prp: preputium, vd: vas deferens, t: tentacle, v: vagina.

Figures. 9-12. 9: Habitat of Pseudamnicola luteola at Jbel Sidi Moussa, 10: habitat of Mercuria gauthieri at La’azib, 11: habitat of Ecrobia vitrea at Saidia wetland, 12: Habitat of Radix labiata at Ras El Ma.