Scaptognathus meteorensis Bartsch, 2003

Abé, Hiroshi, 2021, Taxonomic review of the subfamily Lohmannellinae (Acari: Trombidiformes Halacaridae) with morphological comparisons among genera, Zootaxa 4980 (2), pp. 201-255 : 231

Scaptognathus meteorensis Bartsch, 2003

Diagnosis. Glp-1 same level as Ds-1. Ds-2 and Ds-3 on membranous cuticle. PE with 1 dorsal seta. GA bipartite in female and male. Female with 6 Pgs and 4 Sgs. Male with 21 Pgs and 6 Sgs. Tr I–IV with 1-1-1-1 setae; Bf I–IV with 2-2-1-1 setae; Tf I–IV with 5-4-2-2 setae, 2-0-0-0 Bp setae; Gn I–IV with 4-5-3-3 setae, 2-1-0-0 Bp setae; Tb I–IV with 9-6-7-7 setae, 6-3-4-4 Bp setae; Ta I–IV with 3-3-3-3 dorsal setae, 1-1-0-0 Bp setae. Lc I almost smooth. Idiosoma length 202–215 ( holotype 215) in male, 222 in female. Idiosoma width 137 in male ( holotype). Gnathosoma length 167 in male ( holotype). Gnathosoma width 77 in male ( holotype). Ratio of gnathosoma to idiosoma 0.78 in male ( holotype). Ratio of P-2 to P-1 5.0 ( holotype).

Remarks. This species is similar to S. minutus , however, different from the latter in the AD with broadly arched posterior margin and PD extending far beyond Ds-6. A larva described under the name of “ Scaptognathus sp. A ” in Bartsch (1973b) is likely to be this species ( Bartsch 2003b). Male, female, and LV are known.

Habitat. Bathyal zone: Sediment at 332 m depth.

Distribution. North Atlantic Ocean: Great Meteor Seamount.

Reference. Bartsch (2003b).

Depository. ZIZMH.