Genus Perionychella Michaelsen, 1907

Museums

Regional Maps

• Perionychella Michaelsen, W. 1907. Oligochaeta. pp. 117-232 in Michaelsen, W. & Hartmeyer, R. (eds). Die Fauna Südwest-Australiens. Jena : Gustav Fischer Verlag. [163].

  Type species:

   Perichaeta dendyi Spencer, 1892 (=Perionychella dendyi (Spencer, 1892)) by original designation.
• Pseudoperichaeta Jamieson, B.G.M. 1970. A revision of the Australian earthworm genus Woodwardiella with descriptions of two new genera (Megascolecidae: Oligochaeta). Journal of Zoology, London 162(1): 99-144 [133-134].

 

Distribution

States

New South Wales, Queensland, Tasmania, Victoria

IBRA and IMCRA regions

drainage basins and coastal and oceanic zones

IBRA

NSW, Qld, Tas, Vic: Australian Alps (AA), Brigalow Belt North (BBN), Brigalow Belt South (BBS), Ben Lomond (BEL), Broken Hill Complex (BHC), Channel Country (CHC), Central Mackay Coast (CMC), Cobar Peneplain (CP), Cape York Peninsula (CYP), Desert Uplands (DEU), Darling Riverine Plains (DRP), Einasleigh Uplands (EIU), Flinders (FLI), Gulf Plains (GUP), King (KIN), Murray Darling Depression (MDD), Mitchell Grass Downs (MGD), Mount Isa Inlier (MII), Mulga Lands (ML), Nandewar (NAN), Naracoorte Coastal Plain (NCP), New England Tablelands (NET), NSW North Coast (NNC), NSW South Western Slopes (NSS), Riverina (RIV), Sydney Basin (SB), South East Coastal Plain (SCP), South East Corner (SEC), South Eastern Highlands (SEH), South Eastern Queensland (SEQ), Simpson Strzelecki Dunefields (SSD), Tasmanian Central Highlands (TCH), Tasmanian Northern Midlands (TNM), Tasmanian Northern Slopes (TNS), Tasmanian South East (TSE), Tasmanian Southern Ranges (TSR), Tasmanian West (TWE), Victorian Midlands (VM), Victorian Volcanic Plain (VVP), Wet Tropics (WT)

Original AFD Distribution Data

Australian Region

• Australia
  • New South Wales
  • Queensland
  • Tasmania
  • Victoria: SE coastal

Diagnosis

Setae at least in the mid- and hind-body many more than 8 per segment. Spermathecal pores 2-4 (-5?) pairs between segments IV and IX. One gizzard, in segment 5 or 6. Completely meganephric (holonephric). Prostates with branched canal system. (Michaelson 1907).

Setae 8 or more per segment. Combined pores of vasa deferentia and tubular or tubuloracemose prostates on XVIII. Gizzard in V, rarely VI or VII (well developed to vestigial); typhlosole absent. Extramural calciferous glands usually absent, and never paired, but the oesophagus often vascularised and internally rugose, especially in XIV and XV. Nephridia stomate, exonephric holonephridia with or without bladders; the anterior nephridia sometimes tufted. Spermathecae 1 to 5 pairs. (Jamieson 1974)

Setae in the forebody 4 to 6 pairs; in the hindbody 4 pairs or perichaetin. Prostates racemose. Holonephric, avesiculate, but with (always meronephric?) tufts in one or more anterior segments. Spermathecae 2 to 4 pairs, with single, uniloculate diverticula. (Jamieson 2000)

 

Diagnosis References

Jamieson, B.G.M. 1974. The indigenous earthworms (Megascolecidae: Oligochaeta) of Tasmania. Bulletin of the British Museum (Natural History) Zoology 26: 201-328 [216]

Jamieson, B.G.M. 2000. Native Earthworms of Australia (Megascolecidae, Megascolecinae). Enfield, New Hampshire, USA : Science Publishers, Inc. [CD ROM] 2506 pp. [Date published 12 December 2000] [952]

Michaelsen, W. 1907. Oligochaeta. pp. 117-232 in Michaelsen, W. & Hartmeyer, R. (eds). Die Fauna Südwest-Australiens. Jena : Gustav Fischer Verlag.

 

History of changes

Published	As part of group	Action Date	Action Type	Compiler(s)
		15-Jul-2010	MODIFIED