Affinities of the family Sollasellidae (Porifera, Demospongiae). I. Morphological evidence

van Soest, R. W. M., Hooper, J. N. A., Beglinger, E. and Erpenbeck, D. (2006) Affinities of the family Sollasellidae (Porifera, Demospongiae). I. Morphological evidence. Contributions to Zoology, 75 3-4: 133-144.

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Author van Soest, R. W. M.
Hooper, J. N. A.
Beglinger, E.
Erpenbeck, D.
Title Affinities of the family Sollasellidae (Porifera, Demospongiae). I. Morphological evidence
Journal name Contributions to Zoology   Check publisher's open access policy
ISSN 1383-4517
Publication date 2006
Sub-type Article (original research)
Open Access Status File (Publisher version)
Volume 75
Issue 3-4
Start page 133
End page 144
Total pages 12
Editor R. Vonk
Place of publication Leiden, Netherlands
Publisher Nationaal Natuurhistorisch Museum
Language eng
Subject C1
270504 Invertebrate Biology
770302 Living resources (incl. impacts of fishing on non-target species)
0608 Zoology
Formatted abstract
Comparison of Sollasella digitata Lendenfeld, 1888, up until the present assigned to its own family Sollasellidae Lendenfeld, 1887 in the order Hadromerida, and Raspailopsis cervicornis Burton, 1959, assigned to Raspailiidae Nardo, 1833 in the order Poecilosclerida, leads to the conclusion that both should be considered congeneric and are best assigned to a single genus Sollasella . This conclusion is based on examination of habit and skeletal characters of the type material of S. digitata and both type and freshly collected material of S. cervicornis. The conclusion is strengthened by the discovery of a new species, Sollasella moretonensis n.sp. collected in North Australia (primarily in the northeastern coast, but also an isolated record from the northwestern Australian coast), which possesses in addition to the characteristic surface pattern and skeletal structure, genuine echinating acanthostyles. The redefined genus Sollasella shares axial / extra-axial arrangement of the skeleton, special surface brushes of oxeas surrounding a single protruding style, and vestigial occurrence of acanthostyles with many Raspailia s.l. Nevertheless, it is retained as a separate genus, on account of its peculiar polygonal arrangement of surface pores. The distribution of the genus is disjunctive including both (southeast, northeast and northwest) Australian and Western Indian Ocean localities, but so far no intermediate records. Based on this morphological evidence, it is proposed – pending publication of corroborating molecular evidence to be presented in a follow-up study – to reassign Sollasella and the family Sollasellidae to the poecilosclerid family Raspailiidae.
Keyword Sponges
28S rDNA
Molecular systematics
Sponges porifera
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Biological Sciences Publications
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