Scaptognathus hallezi Trouessart 1894
- 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
- Scaptognathus
- species
- Scaptognathus hallezi
diagnosis
Diagnosis. Glp- 1 same level as Ds- 1. Ds- 2 on AD. PE with 1 dorsal seta. GA bipartite in female and male. Female with 3 or 4 Pgs and 4 Sgs. Male with 30 – 40 Pgs and 6 Sgs. Tr I – IV with 1 - 1 - 1 - 1 setae; Bf I – IV with 2 - (1,2) - (1,2) - (1,2) setae; Tf I – IV with (4,5) - 4 - 2 - 2 setae, 2 - 0 - 0 - 0 Bp setae; Gn I – IV with (2,4) - (3,5) - 3 - 3 setae, 2 - 1 - 0 - 0 Bp setae; Tb I – IV with (7,9) - 6 - (6,7) - (5,7) 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 with accessory process. Idiosoma length 223 – 260 in female, 223 – 241 in male. Idiosoma width 126 (idiosoma length 231) in female, 145 – 148 (idiosoma length 237 – 240) in male. Gnathosoma length 148 – 167 (idiosoma length 223 – 260) in female, 148 – 155 (idiosoma length 223 – 241) in male. Ratio of gnathosoma to idiosoma 0.66 – 0.71 in female, 0.62 – 0.69 in male. Ratio of P- 2 to P- 1 3.17. Remarks. This species is similar to S. sabularius and S. tereninus in having Ds- 2 on AD. However, S. hallezi differs from the latter two species in the shape of GA in female. Bartsch (1986) suggested that S. neretinus Morselli & Mari, 1981 would be synonymous with S. hallezi. Female and male are known. Habitat. Littoral – Sublittoral zones: Medium to coarse sandy sediment, algae, and bryozoans at intertidal zone to 58 m depth. Distribution. North Atlantic Ocean: Roscoff, Granville [France]. Mediterranean: Île If, Île Ratonneau, Île Riou, Île Jarre, Plateau des Chevres, Envau, Port-Pin [France]. Lido Frascone (Puglia), Lido dell’Ancora [Italy]. Kaþ, Hamitbey Plajý (Antalya) [Turkey]. Indian Ocean: Waltair [India]. References. Abé (1990 c), Abé & Green (1994), André (1946), Bartsch (1986 b, 1988 c, 1994 b), Durucan (2018), Halbert (1915), Lohmann (1901), Monniot (1964), Morselli & Mari (1984), Rao & Ganapati (1968), Trouessart & Neumann (1894 a, 1894 b). Depository. MNHNP.