Lohmannella rustica Bartsch, 1977

Diagnosis. Two corneae present. Ds-2 on membranous cuticle. Ds-3 on membranous cuticle. Two dorsal setae on PE. Female with 32–41 Pgs and 8 Sgs. Male with 55 Pgs and 8 Sgs. Tr I–IV with 1-1-1-1 setae; Bf I–IV with 3- 3-2-2 setae; Tf I–IV with 8-8-6-5 setae; Gn I–IV with 6-7-5-4 setae, 2-1-0-0 Bp setae; Tb I–IV with 11-10-7-7 setae, 5-5-3-3 Bp setae; Ta I–IV with 3-3-4-4 dorsal setae, 1-(1,2)-2-1 Bp setae. Lc I smooth, without accessory process. Idiosoma length 297–395 in female, 273 in male, 260 in DN, 257 in PN, 177 in LV. Idiosoma width 223 ( idiosoma length 297) in female, 205 ( idiosoma length 273) in male. Gnathosoma length 182 ( idiosoma length 297) in female, 172 ( idiosoma length 273) in male. Gnathosoma width 82 ( idiosoma length 273) in male. Ratio of gnathosoma to idiosoma 0.61–0.63. Ratio of P-2 to P-1 2.88.

Remarks. This species resembles L. steueri, however, differs from the latter in that smooth Lc, Tb I with 6 Bp setae, GA with 5 or 6 outlying Pgs, and PD with V-shaped elevated ridge. Female, male, DN, PN, and LV are known.

Habitat. Littoral zone: Crevices in Lithophyllum (Rhodophyta).

Distribution. North Atlantic Ocean: Roscoff [France].

References. Bartsch (1977b, 1979e).

Depository. MNHNP.