Family PSEUDOJANIRIDAE Wilson, 1986

Pseudojanira investigatoris

© Copyright from Poore & Just 1990.

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• Pseudojaniridae Wilson, G.D.F. 1986. Pseudojaniridae (Crustacea: Isopoda), a new family for Pseudojanira stenetrioides Barnard, 1925, a species intermediate between the asellote superfamilies Stenetrioidea and Janiroidea. Proceedings of the Biological Society of Washington 99: 350-358 [351].

  Type genus:

   Pseudojanira Barnard, 1925.

Introduction

Pseudojanirids are small flat asellote isopods with subchelate first pereopods attaining up to 5 mm in length. Pseudojanirids differ from stenetriids in the absence of posterior extensions on the male pleopod 2 peduncle and a more elongate appendix masculina. Body lengths are up to 5.3 mm. They inhabit marine subtidal and shelf waters in the Southern Hemisphere (Serov & Wilson, 1999).

Once considered to warrant their own superfamily, the Pseudojaniridae (Wilson 1986, 1987; Poore & Just 1990) are now placed within the Stenetrioidea. The family was diagnosed in detail by Poore & Just (1990) and again by Serov & Wilson (1999).

Diagnosis

Male pleopod 2 peduncle with large distal extension; appendix masculina elongate, narrow, with ventrolateral groove originating proximally; exopod inserting medially. Penes adjacent to sternal spine, directed posteriorly, distally pointed.

General References

Poore, G.C.B. & Just, J. 1990. Pseudojanira investigatoris, new species from southern Australia, second species in the Pseudojaniridae (Isopoda: Asellota) with new morphological information and interpretations. Journal of Crustacean Biology 10: 520-527

Serov, P.A. & Wilson, G.D.F. 1999. A revision of the Pseudojaniridae Wilson, with a description of a new genus of Stenetriidae Hansen (Crustacea: Isopoda: Asellota). Invertebrate Taxonomy 13: 67-116

Wilson, G.D.F. 1986. Pseudojaniridae (Crustacea: Isopoda), a new family for Pseudojanira stenetrioides Barnard, 1925, a species intermediate between the asellote superfamilies Stenetrioidea and Janiroidea. Proceedings of the Biological Society of Washington 99: 350-358

Wilson, G.D.F. 1987. The road to the Janiroidea: comparative morphology and evolution of the asellote isopod crustaceans. Zeitschrift für Zoologische Systematik und Evolutionsforschung 25: 257-280

History of changes