Australian Biological Resources Study

Australian Faunal Directory

Genus Meridiescandona Karanovic, 2003

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Genus Meridiescandona Karanovic, 2003

Distribution

States

Western Australia


Note that conversion of the original AFD map of states, drainage basins and coastal and oceanic zones to IBRA and IMCRA regions may have produced errors. The new maps will be reviewed and corrected as updates occur. The maps may not indicate the entire distribution. See further details below.
IBRA and IMCRA regions (map not available)
drainage basins and coastal and oceanic zones (map not available)

IBRA

WA: Carnarvon (CAR), Gascoyne (GAS), Geraldton Sandplains (GS), Murchison (MUR), Pilbara (PIL), Yalgoo (YAL)

Original AFD Distribution Data

Australian Region

  • Australia
    • Western Australia: NW coastal

Diagnosis

Carapace subrectangular and ornamented. Left valve overlapping right valve on all free margins. Antennula 6-segmented: third and fourth segments fused. Second antenna with only one "t" seta and one "z" claw in both sexes. Mandibular palp 4-segmented. Second segment with two setae on outer edge, with bunch of 3+2 setae on inner edge. Penultimate segment with two setae externo-medially, one externo-distally, and three interno-medially to intero-distally. Terminal segment with fused claw. L : W ratio of terminal segment less than 2 : 1. Terminal segment of maxillular palp square to trapezoidal. Claws on third endite plumose. First thoracopod with one "Ta" seta. Both "Tb" and "Td" setae present. Exopodite of same appendage with three rays. Prehensile palps almost symmetrical with elongate fingers and long subterminal sclerotised structures. Second thoracopod 5-segmented and lacking seta on basal segment. Setae on penultimate segment short. Third thoracopod 5-segmented. Basal segment with "dp", "d1", and "d2" setae present. Also, all other endopodal setae ("Te", "Tf", "Tg", "Th1", "Th2", and "Th3") developed. Terminal segment with two short ("Th1", "Th2") and one long ("Th3") setae with subterminal spines. Caudal ramus with all claws and setae present. Genital lobe rounded and without appendages. Hemipenis with stocky appearance. Lobe "a" not extended dorsally and with obtuse posterior margin. Lobe "b" with one well-chitinised structure passing into oblong margin towards dorsal side and inclined margin towards ventral side. Lobe "h" double-folded and rounded. Central chitinised part ("g") well sclerotised in its proximal part, while distally so only on its outer margins; also this part protrusible between lobes. Zenker's organ with 5+2 rows of spines.

 

History of changes

Note that this list may be incomplete for dates prior to September 2013.
Published As part of group Action Date Action Type Compiler(s)
28-Mar-2012 28-Mar-2012 MODIFIED
30-Mar-2010 MODIFIED