Scaptognathus monstrosus Otto, 2000

Diagnosis. Glp-1 anterior to Ds-1. Ds-2 on membranous cuticle. Dorsal seta indistinct on PE. GA uniform, entirely sclerotized in female. Female with 6 Pgs and 6 Sgs. Tr I–IV with 1-1-1-1 setae; Bf I–IV with 1-1-1-1 setae; Tf I–IV with 4-4-3-3 setae, 1-1-0-0 Bp setae; Gn I–IV with 4-4-3-3 setae, 1-0-0-0 Bp setae; Tb I–IV with 9-5-5-5 setae, 6-2-2-2 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 394–396 in female.

Remarks. The species is characterized by the uniform GA in female. This species is similar to S. peregrinus, in having wide rostrum and peculiar sclerite connecting gnathosoma to idiosoma . However, this species distinguishable from the latter by its larger body size and the possession of Bp setae on Gn I. Female is known.

Habitat. Littoral zone: Coarse sands and rubles at 0.5– 3 m depth.

Distribution. South Pacific Ocean: Elizabeth Reef, Reef 21–149 (21°06’S, 151°43’E) (Great Barrier Reef) [Australia].

Reference. Otto (2000b).

Depository. QMS.