Genus Pleoschisma Brady, 1890

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Genus Pleoschisma Brady, 1890

Pleoschisma Brady, G.S. 1890. On Ostracoda collected by H. B. Brady, Esq., L.L.D.F.R.S., in the South Sea Islands. Transactions of the Royal Society of Edinburgh 35: 489-525 [513].
Type species:
Pleoschisma moroides Brady, 1890 by subsequent designation, see Sylvester-Bradley, P.C. 1961. Myodocopida. pp. 387-406 in Moore, R.C. (ed.). Treatise on Invertebrate Paleontology. Lawrence, Kansas : Geological Society of America and Univ. of Kansas Press. [399].

Distribution

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)

IMCRA

Tasmania Province (10), Southeast Transition (11), Central Eastern Province (12), Tasman Basin Province (13)

Original AFD Distribution Data

Australian Region

Australia
- 200 mile fishing zone: SE oceanic

Diagnosis

Carapace of female generally with very shallow incisur; incisure of adult male also fairly shallow. Valve surface without ribs or large processes, or horns. Second antenna: endopod of adult female 2-segmented. Mandibula: end segment with 1 or 2 stout clawlike bristles in addition to other bristles. Fifth limb: 3-segmented; exopod — 1st segment with 1 or 2 elongate fanglike teeth bearing additional teeth along inner margin; 2nd segment with elongate fanglike tooth with 2 well-developed teeth along its inner margin; latter teeth bearing smaller secondary teeth along their inner margins. Sixth limb: with 4 segments; end segment projecting posteriorly. Seventh limb: terminus consisting of comb teeth opposite either 1 or 2 pegs, or large spine with small blunt teeth. Furca: all claws separated from lamella by suture; claws 1, 2, 4 stout primary claws; claw 3 and claw following primary claw 4 very small secondary claws. Bellonci organ: elongate, broadening in middle part, then tapering to thin pointed tip; either with sutures or with 1 or 2 weak suture.

Diagnosis References

Kornicker, L.S. 1981. A restudy of the ostracode genus Pleoschisma Brady, 1890 (Myodocopina). Smithsonian Contributions to Zoology No. 332: 1-16 [2]

General References

Kornicker, L.S. 1981. A restudy of the ostracode genus Pleoschisma Brady, 1890 (Myodocopina). Smithsonian Contributions to Zoology No. 332: 1-16 [2]

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

Australian Biological Resources Study

Australian Faunal Directory