Hygrosoma petersii (A. Agassiz 1880)
- Dataset
- Illustrated guide to the echinoid (Echinodermata: Echinoidea) fauna of South Africa
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Echinodermata
- class
- Echinoidea
- order
- Echinothurioida
- family
- Echinothuriidae
- genus
- Hygrosoma
- species
- Hygrosoma petersii
description
Global maximum size. Maximum test diameter 180 mm. Global distribution. Widely distributed in North Atlantic from off South-West Ireland to Azores and Senegal and from off New Jersey, USA to West Indies, also reported from West coast of South Africa; at 200 – 3200 m depth range (Schultz 2011).
discussion
Remarks. Clark & Courtman-Stock (1976) have flagged Clark’s (1923 & 1924) East coast record of the species as they point out it “ is queried by Mortensen as unlikely to refer to this Atlantic species; at least one locality off Natal is duplicated by the British Museum specimen which proved to be referable to Sperosoma biseriatum ”. Differs from Araeosoma paucispinum in arrangement of pore-pairs, where Hygrosoma petersii has pore-pairs in a single series and A. paucispinum in oblique arcs forming three ventral series.
materials_examined
Material examined. A 9812 - 079 - DT; A 22124; A 22219; A 22248; A 22251. Identification. Preserved test collapsed, with circular outline. Large oral tubercles with distinctive areoles, disappearing towards peristome. Pore-pairs in single series. Preserved test purple.
Name
- Homonyms
- Hygrosoma petersii (A. Agassiz 1880)