A new genus and species of Ridgewayiidae (Copepoda: Calanoida) from subterranean waters of Northwestern Australia

Tang, Danny, Barron, Harley and Goater, Sarah (2008) A new genus and species of Ridgewayiidae (Copepoda: Calanoida) from subterranean waters of Northwestern Australia. Journal of Crustacean Biology, 28 3: 551-563.


Author Tang, Danny
Barron, Harley
Goater, Sarah
Title A new genus and species of Ridgewayiidae (Copepoda: Calanoida) from subterranean waters of Northwestern Australia
Journal name Journal of Crustacean Biology   Check publisher's open access policy
ISSN 0278-0372
Publication date 2008-08
Sub-type Article (original research)
DOI 10.1651/07-2869R.1
Volume 28
Issue 3
Start page 551
End page 563
Total pages 13
Place of publication Lawrence, U.S.
Publisher Crustacean Society
Language eng
Subject 06 Biological Sciences
0608 Zoology
Formatted abstract A new ridgewayiid copepod, Stygoridgewayia trispinosa n. g. and n. sp., is described from continental ground waters of the Cape Range Peninsula and Pilbara regions of Western Australia, as the first occurrence of this family in fresh waters. The new genus can be distinguished from other ridgewayiid genera by a combination of characters that include three digitiform processes and striated membrane on each caudal ramus, fused ancestral segments II-IV and V-VI on the antennary exopod, leg 1 with a subterminal flagellum on the outer spiniform setae of the terminal exopodal segment, legs 3 and 4 with two outer spiniform setae on the terminal exopodal segment, and female leg 5 with reduced armature on the exopod, terminal exopodal segment inserted along the distal margin of the middle exopodal segment, and endopod absent. We postulate that this new ridgewayiid is a particle feeder living in close contact with the sediment surface, and originated in shallow coastal waters and secondarily colonized the freshwater hypogean environment.
Keyword Copepoda
Ground water
Ridgewayiidae
Stygoridgewayia trispinosa
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Population Health Publications
 
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