Family HIMEROMETRIDAE
Compiler and date details
2012 - Tim O'Hara, Museum Victoria, Carlton, Victoria, Australia
2001 - Tim O'Hara, Museum Victoria, Carlton, Victoria, Australia
1995 - F.W.E. Rowe & J. Gates, Australian Museum, Sydney, New South Wales, Australia
Introduction
Himerometridae are a family of six Recent genera known from the tropical Indo-west Pacific region. Four genera are recorded in Australian waters, represented by nine species.
This family is distinguished from other comatulid crinoids by the following combination of character states: arms ten or more; IBr united by synarthry; dorsal surface of cirrus segments with median prominence if any; distal pinnules flexible; pinnule combs absent; second brachial syzygy further out than 9+10, brachials distinctly wider than long at least proximally; if more than ten arms, then external IIBr series at least are of four ossicles.
General References
Clark, A.H. 1941. A monograph of the existing crinoids. Vol. 1. The comatulids. Part 4a.— Superfamily Mariametrida (except the family Colobometridae). Bulletin of the United States National Museum 82: 1-603 pls 1-61
Rasmussen, H.W. & Sieverts-Doreck, H. 1978. Articulata. pp. T813-T1027, figs 549-619 in Moore, R.C. & Teichert, C. (eds). Treatise on Invertebrate Paleontology. Part T. Echinodermata 2. Crinoidea. Kansas : Geological Society of America and University of Kansas Press Vol. 3.
History of changes
Published | As part of group | Action Date | Action Type | Compiler(s) |
---|---|---|---|---|
15-Sep-2023 | 11-Dec-2012 | MODIFIED | ||
12-Feb-2010 | (import) |