Genus Lophophysema Schulze, 1900

Museums

Regional Maps

• Lophophysema Schulze, F.E. 1900. Hexactinelliden des Indischen Oceans. III. Theil. Abhandlungen der Königlich-Preussischen Akademie der Wissenschaften. Berlin Phys.-Math. Kl. 1900: 1-46 pls I-VII [19].

Distribution

States

Queensland, Western Australia

IBRA and IMCRA regions

IMCRA

Timor Province (2), Northwest Transition (3), Northwest Province (4), Central Western Transition (5)

Diagnosis

Body is composed of two opposite cones. The outer surface of the upper cone corresponds to the everted atrial surface, forming the major part of the external body surface, while the same of the lower one is the dermal area, deeply sunk in the form of pits. Extensive inhalant system of wide and branching cavities and canals is vertically directed. The apical cone seems to protrude over the apex. The basalia are twisted in a tuft. Choanosomal skeleton consists of diactines, sometimes with hexactines. Prostalia marginalia (corresponding to oscularia) are pinular diactines. Dermalia, atrialia and canalaria are usually pinular pentactines, rarely hexactines. Hypodermalia are pentactines, hypoatrialia may be absent or are also pentactines. Microscleres are amphidiscs (macramphidisc and mesamphidiscs may be absent or rare, micramphidiscs are always present) and spiny microhexactines or rough monactines.

ID Keys

See Family Hyalonematidae Diagnosis.

Diagnosis References

Tabachnick, K. & Menshenina, L. L. 2002. Family Hyalonematidae Gray, 1857. pp. 1232-1263 in Hooper, J.N.A. & Soest, R.W.M. Van (eds). Systema Porifera. A guide to the classification of sponges. New York : Kluwer Academic/Plenum Publishers Vol. 2. [1260]

History of changes