Australian Museum Journal Generic revision and relationships of the family Onuphidae (Annelida: Polychaeta)

Shortform:
Paxton, 1986, Rec. Aust. Mus. 38(1): 1–74
Author(s):
Paxton, Hannelore
Year published:
1986
Title:
Generic revision and relationships of the family Onuphidae (Annelida: Polychaeta)
Serial title:
Records of the Australian Museum
Volume:
38
Issue:
1
Start page:
1
End page:
74
DOI:
10.3853/j.0067-1975.38.1986.175
Language:
English
Date published:
27 June 1986
Cover date:
27 June 1986
ISSN:
0067-1975
CODEN:
RAUMAJ
Publisher:
The Australian Museum
Place published:
Sydney, Australia
Subjects:
POLYCHAETA; TAXONOMY
Digitized:
19 January 2009
Available online:
27 February 2009
Reference number:
175
EndNote package:
EndNote file
Title page:
Title page (181kb PDF)
Complete work:
Complete work (11826kb PDF)

Abstract

The general morphology, reproduction and development of the family Onuphidae are reviewed and supplemented with new observations, emphasizing ontogenetic changes. The following features were found to be associated with the juvenile state: distinctive colour pattern, ceratophores of antennae with few rings, absence of frontal palps and tentacular cirri, presence of eyes, smaller number of modified setigers, lesser developed branchiae, early occurrence of sub acicular hooks, presence of compound falcigers in anterior and far posterior setigers. Five new genera are described, bringing the number of recognized genera in the family to 22. A key, diagnoses and illustrated definitions to all genera are given. The relationships within the family are analyzed using morphological, ecological and life history characters. Two subfamilies: Hyalinoeciinae, n. subf., and Onuphinae are erected. The two subfamilies differ in the presence or absence of notosetae, position of sub acicular hooks and lower limbate setae, number of anal cirri, primary envelope of oocytes and arrangement of their nurse cells. Two groups of genera are recognized in each subfamily. The Hyalinoeciinae includes the Nothria group (consisting of Nothria and Anchinothria, n. gen.) and the Hyalinoecia group (consisting of Hyalinoecia; Leptoecia; Neonuphis; HyalospiniJera). The Onuphinae includes the Diopatra group (consisting of Notonuphis; Paradiopatra; Diopatra; Epidiopatra; Brevibrachium, n. gen.; Longibrachium, n. gen.; Rhamphobrachium; Americonuphis) and the Onuphis group (consisting of Australonuphis; Hartmanonuphis, n. gen.; Hirsutonuphis, n. gen.; Aponuphis; Kinbergonuphis; Mooreonuphis; Onuphis; Heptaceras). It is hypothesized that the Onuphidae have a southern centre of origin and radiated from epifaunal habitats to world-wide distributions from the shallowest to the deepest depths.

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