Australian Museum Journal Millipedes from Australia, 6: Australiosomatini from Victoria (Diplopoda: Polydesmida: Paradoxosomatidae)

Shortform:
Jeekel, 1984, Rec. Aust. Mus. 36(1): 19–44
Author(s):
Jeekel, C. A. W.
Year published:
1984
Title:
Millipedes from Australia, 6: Australiosomatini from Victoria (Diplopoda: Polydesmida: Paradoxosomatidae)
Serial title:
Records of the Australian Museum
Volume:
36
Issue:
1
Start page:
19
End page:
44
DOI:
10.3853/j.0067-1975.36.1984.323
Language:
English
Date published:
15 June 1984
Cover date:
15 June 1984
ISSN:
0067-1975
CODEN:
RAUMAJ
Publisher:
The Australian Museum
Place published:
Sydney, Australia
Subjects:
DIPLOPODA
Digitized:
14 May 2009
Available online:
16 July 2009
Reference number:
323
EndNote package:
EndNote file
Title page:
Title page (168kb PDF)
Complete work:
Complete work (4796kb PDF)

Abstract

Redescriptions of Hoplatria clavigera Verhoeff, 1941, and Hoplatessara pugiona Verhoeff, 1941. Descriptions of: Somethus biramus n.sp., characterized by the length of the tibiotarsal branch of the gonopods, and the small size of the femoral branch, which is reduced to a tiny lappet emanating from near the apex of the seminiferous branch; Australiosoma laminatum n.sp., characterized by the laminate expansion of the femoral process of the gonopods; and Hoplatessara nigrocingulata n.sp., particularly characterized by the relative length and shape of the femoral process of the gonopods. Two new genera are proposed: Archicladosoma and Isocladosoma. Archicladosoma, type species A. magnum n.sp., is of particular interest since it is characterized by what may be regarded as the most ancestral type of gonopods yet recorded in the Australiosomatini, with a distinctly demarcated femoral section, and the tibiotarsus, femoral process and solenomerite unmodified. Isocladosoma, type species I. guttatum n.sp., has the gonopods split into three branches, all of which emanate almost directly from the prefemur. The genus suggests Cladethosoma Chamberlin, 1920, but differs in having the femoral process elongate lanceolate, and in having only a single tibiotarsal branch, which in some species bears an additional spine. A second and third species, I. pallidulum n.sp. and I. maculatum n.sp., substantiate the characters of the genus. The three species are distinguished mainly by the structure of the tibiotarsus of the gonopods and by their colour pattern.

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