Lohmannella kerguelensis Lohmann 1907

• Main Author: Abé, Hiroshi
• Format: Other/Unknown Material
• Language: unknown
• Published: 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Arachnida; Trombidiformes; Halacaridae; Lohmannella; Lohmannella kerguelensis; Antarctic; Arctic; Arctic Ocean; Indian; Kerguelen; Newell; Palmer Archipelago; Antarc*
• Online Access: https://zenodo.org/record/4984965; https://doi.org/10.5281/zenodo.4984965

Lohmannella kerguelensis Lohmann, 1907 Diagnosis. One cornea present. Glp-1 anterior to Ds-1. Ds-2 on membranous cuticle. Ds-3 on margin of PD. Two dorsal setae on PE. Male with ca.56 Pgs and 8 Sgs. Tr I–IV with 1-1-1-1 setae; Bf I–IV with 3-3-3-3 setae; Tf I–IV with 8-7-(6,7)-4 setae; Gn I–IV with 8-9-4-4 setae, 4-4-1-1 Bp setae; Tb I–IV with 14-(12,13)-11-10 setae, 7- 6-6-5 Bp setae; Ta I–IV with 3-3-4-3 dorsal setae, 2-2-(2,3)-(2,3) Bp setae. Lc I with unidentate accessory process. Idiosoma length 420–453 in male. Idiosoma width 322 (idiosoma length 453) in male. Gnathosoma length 310–320 in male. Ratio of gnathosoma to idiosoma 0.71–0.74. Ratio of P-2 to P-1 3.63. Remarks. This species was originally described under the name of L. gaussi var. kerguelensis. Thereafter, Newell (1984) regarded this variety as a distinct species. The specis resembles other two Antarctic species (L. fukushimai and L. gaussi) in having 7 pectinate setae on Tb I. However, L. kerguelensis is separated from the latter 2 species by its shorter gnathosoma, lacking of porose areolae, and the absence of the spinelet-replaced Glps. Female and male are known. Habitat. Littoral–Sublittoral zones: Crevices, colonial organisms, algal tufts, sediments at a depth of 49–58 m. Distribution. Indian Ocean: Kerguelen Is. [France]. Arctic Ocean: Palmer Archipelago [US]. References. Bartsch (1977b, 1993b), De Bovée et al. (1973), Chatterjee & Sarma (1991), Dalenius (1965), Imamura (1968), Lohmann (1907a, b), Newell (1984), Viets (1950a). Depository. MNHUB. Published as part of Abé, Hiroshi, 2021, Taxonomic review of the subfamily Lohmannellinae (Acari: Trombidiformes Halacaridae) with morphological comparisons among genera, pp. 201-255 in Zootaxa 4980 (2) on page 215, DOI:10.11646/zootaxa.4980.2.1, http://zenodo.org/record/4888860