Paratanaoidean tanaidaceans (Crustacea: Peracarida) from littoral and shallow sublittoral habitats in New Zealand, with descriptions of three new genera and seven new species

Abstract

Three new genera and seven new species of paratanaoidean tanaidaceans are described from a variety of littoral and shallow sublittoral habitats around New Zealand, from the Snares Islands to Northland. These include a new leptocheliid genus, Parakonarus, closely allied to Konarus Bamber, and three paratanaids: two species of Paratanais Dana and a new genus, Atemtanais, which appears to show characters intermediate between Metatanais Shiino and Paratanais. The remaining three taxa belong either to the Tanaellidae (a new species of Araphura Bird & Holdich) or are of incertae sedis family status: Kanikipa n. gen. and a new species of Tanaopsis G.O. Sars.This study has almost doubled the known, published records of shallow-water tanaidomorphan species in New Zealand and all of the species are likely to be recorded more widely than the records here imply.

The Shallow-water Tanaidacea (Arthropoda: Malacostraca: Peracarida) of the Bass Strait, Victoria, Australia (other than the Tanaidae)

“…The small distal article on the antennule has only been reported before for a Tanaopsis species by Bird (2011), who noted its presence in T. rawhitia. While such an article does not appear to have been present in some other more recently or better-described species, viz.…”

“…16g) is typical of a species of Konarus Bamber, 2006 or Parakonarus Bird, 2011, and not Pseudoleptochelia sens. auctt., casting doubt on with which female his subchelate male should be associated (see Bird, 2011). In practice, the maxilliped-basis setation and female antennal spination are unknown in at least half of the Pseudoleptochelia species.…”

“…Further detailed cladistic analyses may associate other genera, which would then require qualifying the familial diagnosis above, removing characters not consistent across all associated genera into the diagnosis of the genus Tanaopsis. Bird (2011) suggests possible affinities with Cristatotanais Kudinova- Pasternak, 1990(including Spinitanaopsis Larsen, 2005.…”

“…Bird & Bamber (2000), while describing as new T. chotkarakde, also added T. gallardoi to the genus. Since then, the only new Tanaopsis species that have been described are T. canaipa from Queensland and T. rawhitia Bird, 2011 from New Zealand.…”

Palaeobiology of tanaidaceans (Crustacea: Peracarida) from Cretaceous ambers: extending the scarce fossil record of a diverse peracarid group

“…nov. in this genus. Its form approaches that of extant leptocheliids such as Konarus Bamber, 2006, Parakonarus Bird, , and Pseudoleptochelia Lang, 1973 (see Bamber, ), but the fixed finger is better developed than in those taxa; the forcipate nature and long dactylus also resemble those of the extant nototanaids Nototanais antarcticus (Hodgson, 1902) and Nototanais dimorphus (Beddard, 1886).…”