Acarochelopodia and Actacarus Species (Acari : Halacaridae) from Australia, with Remarks on A. pacificus and A. orthotectus

Abstract

Acarochel(rpodia bi"nguis Bartsch, 1988 and four new species of Actacarus (A, chelonis, A, cornutus, A, nanus, A. spinosus) are recorded firom beaehes and subtidal sediments of northeastern Australia; A. spinosus and A. chelonis are alse recorded fkrem Freneh Polynesia, and the latter species from Indonesia. Specimens from Western Australia, previously referred to as Actacartts pacipcus Bartsch, 1979, are described as Actacarus marindicus sp. nov., A, orthotectus Newell, 1984 is removed from synonymy with A. pacijicus, and Japanese records of A. pacijicus are commented on. A key to the Australian species ofActacarus is presented.

Halacarid mites (Acari: Halacaridae) from Esperance, Western Australia: Notes on taxonomy and faunal distribution of non-Copidognathinae

“…Seven named species of Actacarus are known from Australia, the just mentioned A. pacificus, as well as A. australis Bartsch, 1993, A. chelonis Otto, 2000, A. cornutus Otto, 2000, A. festivus Bartsch, 2003, A. nanus Otto, 2000, and A. spinosus Otto, 2000(Bartsch, 1993d, 2003dOtto, 2000c). Actacarus pacificus, A. nanus and A. spinosus have four pairs of setae on the AE.…”

Psammophilous halacarids (Halacaridae, Acari) from Dampier, Western Australia. Description of species and faunal comparison of the mesopsammal halacarid fauna of western and eastern Australia

“…Bartsch (1993) and Abe (1997) believed it to be synonymous with A. pacificliS. Otto (2000c) reestablished the Chilean species (A. orthotectlls) because of its slender P-2 and presented an illustration of the palps of both a Chilean and Western Australian specimen (Otto, 2000e: figure 3e and f). The palps are said to show a lateral aspect.…”