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Porifera source details

Hooper, J. N. A. (2002 [2004]). Family Hemiasterellidae Lendenfeld, 1889. Pp. 186–195. In: Hooper, J.N.A.; Van Soest, R.W.M. (2002 [2004]). Systema Porifera. A Guide to the Classification of Sponges. (2 volumes). Kluwer Academic/Plenum Publ., New York. 1708+XLVIII. ISBN 978-1-4615-0747-5 (eBook electronic version).
404773
Hooper, J. N. A.
2002 [2004]
Family Hemiasterellidae Lendenfeld, 1889. Pp. 186–195. <em>In: </em>Hooper, J.N.A.; Van Soest, R.W.M. (2002 [2004])
Systema Porifera. A Guide to the Classification of Sponges
(2 volumes). Kluwer Academic/Plenum Publ., New York. 1708+XLVIII. ISBN 978-1-4615-0747-5 (eBook electronic version)
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Available for editors  PDF available [request]
Hemiasterellidae Lendenfeld (Demospongiae, Hadromerida) contains 11 nominal genera, of which six are valid, and approximately 20 described species worldwide. Species live in all oceans, predominantly in shallow waters, are often dichotomously branching or flabellate, with hispid surface or conules and stiff texture. The family has a unique combination of euasters mainly at the surface, and monaxonic megascleres (styles and/or oxeas) with distinctly structured arrangement of axial and extra-axial skeletons. Genera are differentiated predominantly on the basis of whether megascleres are diactinal or monactinal, development of the axial and extra-axial skeletons, presence or absence of ectosomal specialisation, and euaster morphology.
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2021-04-18 13:57:37Z
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2021-04-19 09:34:44Z
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 Syntype

Hooper (2002) mentions only Guernsey as type locality, whereas Bowerbank (1866: 112) considers Hastings as the ... [details]



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