Ariostralis Sirgel, 1985

Sirgel, W. F., 2012, A new species of Oopeltidae (Mollusca, Pulmonata, Arionoidea), with a revision of the subfamily Ariopeltinae and remarks on its affinities within the family and superfamily, African Invertebrates 53 (2), pp. 527-527 : 529

Genus Ariostralis Sirgel, 1985

Type species: Ariostralis nebulosa Sirgel, 1985 .

Emended diagnosis: Caudal end of body with caudal pore. Body posterior to mantle rounded dorsally. Peripodial grooves sloping upwards posteriorly to end laterally in caudal pore. Foot fringe thus relatively wide. Sole of foot at least as wide as body, remaining wide and straight when body is contracted, resulting in dorsal side of body taking on domed shape but animal remaining in stable, upright position. Mucus clear and sticky. Inner surface of body wall and surface of ovotestis slightly pigmented. Vaginal bulb with sub-epidermal, cartilaginous structures intruding into lumen. Apices of these folds may be enlarged and fused to form a second inner perforated wall suspended from outer wall by thin cartilaginous strands. Calcareous, sub-epidermal spines in second and third regions of penis. These spines may be dominated by one giant spine located proximally in third region.