Astrotylus Plotkin & Janussen 2007 ...

Genus Astrotylus Plotkin & Janussen, 2007 Diagnosis: Cushion­shaped encrusting sponges with hispid surface. Choanosomal skeleton consists of radial tracts of principal megascleres, between which numerous microscleres and rare small megascleres are freely scattered. Cortical skeleton formed by th...

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Bibliographic Details
Main Authors: Plotkin, Alexander S., Janussen, Dorte
Format: Text
Language:unknown
Published: Zenodo 2008
Subjects:
Biodiversity
Taxonomy
Animalia
Porifera
Demospongiae
Hadromerida
Polymastiidae
Astrotylus
Antarc*
Antarctic
Weddell Sea
Online Access:https://dx.doi.org/10.5281/zenodo.6235789
https://zenodo.org/doi/10.5281/zenodo.6235789
Description
Summary:Genus Astrotylus Plotkin & Janussen, 2007 Diagnosis: Cushion­shaped encrusting sponges with hispid surface. Choanosomal skeleton consists of radial tracts of principal megascleres, between which numerous microscleres and rare small megascleres are freely scattered. Cortical skeleton formed by the main tracts arising from the choanosome, diverging into bouquets, reinforced by the irregular palisade of small megascleres and echinating the surface. Megascleres are tylostyles, microscleres are astrotylostyles. Type species: Astrotylus astrotylus Plotkin & Janussen, 2007 (by original designation). Astrotylus astrotylus Plotkin & Janussen, 2007 (Fig. 3) Synonymy Astrotylus astrotylus— Plotkin and Janussen 2007: 1395, figs. 1–3. Material examined Holotype: SMF 10518 (1 specimen): PS67/102­11. Paratypes: SMF 10517 (1 specimen): PS67/094­11; SMF 10519 (1 specimen): PS67/102­11; SMF 10516 (1 specimen): PS67/110­2. Description (emended from Plotkin & Janussen 2007) External morphology. Sponges are small ... : Published as part of Plotkin, Alexander S. & Janussen, Dorte, 2008, Polymastiidae and Suberitidae (Porifera: Demospongiae: Hadromerida) of the deep Weddell Sea, Antarctic *, pp. 95-135 in Zootaxa 1866 on pages 100-102, DOI: 10.5281/zenodo.183878 ...

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