Published June 27, 2023 | Version v1
Taxonomic treatment Open

Paralophaster Fisher 1940

Description

Paralophaster Fisher, 1940

Paralophaster Fisher, 1940: 175, A.M. Clark 1962: 52; H.E.S. Clark 1963: 60; Mah & Fujita 2020: 75.

Myoraster Fisher, 1940: 181, A.M. Clark 1962: 52.

Diagnosis

Arms five. Abactinal plates in reticulate skeleton, variably arranged among species. Papulae present in tissue covered regions interspersed between plates. Abactinal plates paxillate, bearing short hyaline spinelets with hyaline tips, 3–40 per plate. Taxa with a single series of large paxillae-like marginal plates, widely spaced, reaching 3× the thickness and size of the abactinal plates; pointed spinelets numerous. Marginal plate series encroaches onto actinal interradial region. Superomarginals variably present or absent among species (see discussion below). When present, superomarginals are comparable in height and size to abactinal plates but distinct. Furrow spines, 1 to 5, mostly 2 to 4. Subambulacral spines 2 to 6. At least two species with coelomic brooding of juveniles.

Notes

Published as part of Mah, Christopher L., 2023, New Genera, Species, and observations on the biology of Antarctic Valvatida (Asteroidea), pp. 1-88 in Zootaxa 5310 (1) on page 56, DOI: 10.11646/zootaxa.5310.1.1, http://zenodo.org/record/8090240

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Linked records

Additional details

Biodiversity

Family
Solasteridae
Genus
Paralophaster
Kingdom
Animalia
Order
Valvatida
Phylum
Echinodermata
Scientific name authorship
Fisher
Taxon rank
genus
Taxonomic concept label
Paralophaster Fisher, 1940 sec. Mah, 2023

References

  • Fisher, W. K. (1940) Asteroidea. Discovery Reports, 20, 69 - 306.
  • Clark, A. M. (1962) Asteroidea. B. A. N. Z. Antarctic Research Expedition 1929 - 1931, B 9, 68 - 70.
  • Clark, H. E. S. (1963) The Fauna of the Ross Sea. Part 3. Asteroidea. New Zealand Department of Scientific and Industrial Research Bulletin, 151, 1 - 84.
  • Mah, C. & Fujita, T. (2020) New species and occurrence records of Japanese Solasteridae and Ganeriidae including a new species of Paralophaster from the North Pacific with an overview of Hyalinothrix. Zootaxa, 4750 (1), 67 - 100. https: // doi. org / 10.11646 / zootaxa. 4750.1.4