Subgenus Hyalonema (Hyalonema) Gray, 1835
- Hyalonema Gray, J.E. 1835. On the coral known as the Glass Plant. Proceedings of the Zoological Society of London 3: 63-65 [65].
Type species:
Hyalonema sieboldi Gray, 1835 by original designation. - Euhyalonema Ijima, I. 1927. The Hexactinellida of the Siboga Expedition. 1-383 26 pls in Weber, M.W.C. (ed.). Siboga-Expeditie, livr. 106, monogr. 6. Leiden : J.E. Brill. [50] [unjustified emendation of Hyalonema Gray, 1835 as subgenus name; junior objective synonym of Hyalonema].
Type species:
Hyalonema sieboldi Gray, 1835 by original designation.
Distribution
Extra Distribution Information
Cosmopolitan.
IMCRA
Timor Province (2), Northwest Shelf Province (27), Central Western Shelf Transition (28), Northwest Transition (3), Northwest Province (4)
Distribution References
- Ijima, I. 1927. The Hexactinellida of the Siboga Expedition. 1-383 26 pls in Weber, M.W.C. (ed.). Siboga-Expeditie, livr. 106, monogr. 6. Leiden : J.E. Brill. [50]
- Lévi, C. 1964. Spongiaires des zones bathyale, abyssale et hadale. 63-112 pls 2-11 in Wolff, T. (ed.). Galathea Report. Scientific results of the Danish Deep-Sea Expedition Round the World, 1950–1952. Copenhagen : Danish Science Press Vol. 7. [85]
Diagnosis
Body is oval, small atrial cavity divided by septas into several parts when small and inverted-conical with flat oscular sieve-plate has open meshes assembled in groups which are separated by imperforate tracts in large specimens. The apical cone was not found. Choanosomal spicules are diactines, ambuncinates and rarely hexactines. In one species the ambuncinates are absent but uncinates with the tubercules in the middle are present instead of them. Pleuralia lateralia are pinular diactines. Acanthophores are stauractines, tauactines, pentactines and diactines. Basalia are represented by anchors. Dermalia and atrialia are pinular pentactines. Their pinular ray is whip-like with short lateral spines, its rhachis is thickest at base. Hypodermalia and sometimes hypoatrialia are pentactines. Amphidiscs are represented by two or three kinds (mesamphidiscs may be absent). Macramphidiscs have umbels, usually about 1/4 – 1/3 (rarely 1/12) as long, and about 1/3 – 1/2 (rarely ) as broad, as the length of the whole spicule. Mesamphidiscs and micramphidiscs have common shape. Microhexactines are entirely absent in most species or they are rare.
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. [1234]
General References
Ijima, I. 1927. The Hexactinellida of the Siboga Expedition. 1-383 26 pls in Weber, M.W.C. (ed.). Siboga-Expeditie, livr. 106, monogr. 6. Leiden : J.E. Brill. (established and retained twelve subgenera including four of Lendenfeld, 1915)
Lévi, C. 1964. Spongiaires des zones bathyale, abyssale et hadale. 63-112 pls 2-11 in Wolff, T. (ed.). Galathea Report. Scientific results of the Danish Deep-Sea Expedition Round the World, 1950–1952. Copenhagen : Danish Science Press Vol. 7.
History of changes
| Published | As part of group | Action Date | Action Type | Compiler(s) |
|---|---|---|---|---|
| 29-Mar-2018 | 28-Feb-2012 | MODIFIED | ||
| 29-Mar-2018 | 15-Apr-2011 | MODIFIED | ||
| 12-Feb-2010 | (import) |