Lohmannella kerguelensis Lohmann 1907
- Dataset
- Taxonomic review of the subfamily Lohmannellinae (Acari: Trombidiformes Halacaridae) with morphological comparisons among genera
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Arachnida
- order
- Trombidiformes
- family
- Halacaridae
- genus
- Lohmannella
- species
- Lohmannella kerguelensis
diagnosis
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 (1977 b, 1993 b), De Bovée et al. (1973), Chatterjee & Sarma (1991), Dalenius (1965), Imamura (1968), Lohmann (1907 a, b), Newell (1984), Viets (1950 a). Depository. MNHUB.