Australian Museum Journal The genera Catoessa, Elthusa, Enispa, Ichthyoxenus, Idusa, Livoneca and Norileca n.gen. (Isopoda, Cymothoidae), crustacean parasites of marine fishes, with descriptions of eastern Australian species

Shortform:
Bruce, 1990, Rec. Aust. Mus. 42(3): 247–300
Author(s):
Bruce, Niel L.
Year published:
1990
Title:
The genera Catoessa, Elthusa, Enispa, Ichthyoxenus, Idusa, Livoneca and Norileca n.gen. (Isopoda, Cymothoidae), crustacean parasites of marine fishes, with descriptions of eastern Australian species
Serial title:
Records of the Australian Museum
Volume:
42
Issue:
3
Start page:
247
End page:
300
DOI:
10.3853/j.0067-1975.42.1990.118
Language:
English
Date published:
16 November 1990
Cover date:
16 November 1990
ISSN:
0067-1975
CODEN:
RAUMAJ
Publisher:
The Australian Museum
Place published:
Sydney, Australia
Subjects:
CRUSTACEA: ISOPODA; TAXONOMY; FISHES
Digitized:
26 November 2008
Available online:
18 December 2008
Reference number:
118
EndNote package:
EndNote file
Title page:
Title page (84kb PDF)
Complete work:
Complete work (5569kb PDF)

Abstract

The following genera of Cymothoidae are recorded from Australia: Catoessa Schiodte & Meinert, Elthusa Schiodte & Meinert, Enispa Schiodte & Meinert, Ichthyoxenus Herklots, Livoneca Leach and Norileca n.gen. Full diagnoses are given for Enispa, Livoneca and Norileca n.gen. For the remaining genera provisional diagnoses are given. Idusa Schiodte & Meinert is rediagnosed to allow separation from Catoessa. All the species described herein would have previously been placed in Livoneca. Examination of the type material of L. redmanii shows that all other species placed in the genus, except for L. bowmani Brusca, are not congeners, and are reassigned, where possible, to other genera. The genus Livoneca is found to belong to the Anilocrinae, and is most closely related to the Nerocila group of genera. The principal characters used in redefining these genera and assigning Livoneca and Norileca to the Anilocrinae are the morphology of the brood pouch, pleopods, pleon and cephalon. The species described are Catoessa ambassae n.sp., Elthusa myripristae n.sp., E. neocytta (Avdeev), E. propinqua (Richardson), E. raynaudii (Milne-Edwards), E. sacciger (Richardson), E. sigani n.sp., E. turgidula (Hale), Enispa irreqularis (Bleeker), lchthyoxenus minabensis (Shiino), Norileca indica (Milne-Edwards) and Norileca triangulata (Richardson). Discussion is given of the genera treated and the problems present in attempting to diagnose subfamilies within the Cymothoidae. Keys are given to the Australian gill attaching genera and the Australian species of the genera Elthusa and Norileca.

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