Eucalathis magna Cooper 1981

• Main Authors: Bitner, Maria Aleksandra, Logan, Alan
• Format: Text
• Language: unknown
• Published: Zenodo 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Brachiopoda; Rhynchonellata; Terebratulida; Chlidonophoridae; Eucalathis; Eucalathis magna; Heard Island; Indian; Davidson; Rugosa; Almond
• Online Access: https://dx.doi.org/10.5281/zenodo.4579071; https://zenodo.org/record/4579071

Eucalathis magna Cooper, 1981 (Fig. 10 A-D) Eucalathis magna Cooper, 1981a: 17, pl. 1, figs 1-6. — Zezina 2010: 1187. MATERIAL EXAMINED. — South Madagascar . ATIMO VATAE, stn DW 3529, 1 bivalved specimen. DEPTH RANGE. — 402- 207 m. MEASUREMENTS. — Length 13.4 mm, width 10.7 mm, thickness 4.8 mm. REMARKS Species of the genus Eucalathis are common in all the oceans of the world and range greatly in depth. Six species have been recorded from the Indian Ocean: E. rotundata Cooper, 1981; costellata Cooper, 1981; fasciculata Cooper, 1973; magna Cooper, 1981; murrayi (Davidson, 1878); and rugosa Cooper, 1973 (Logan 2007). E. magna is very rare in the investigated material, represented by only one specimen. It was originally described, also based on one specimen, from the West of Heard Island at a depth of 790 m by Cooper (1981a). The present finding extends its geographical range. This species is characterized by a large size for the genus and almond-like outline. Both in outline and ornamentation E. magna strongly resembles Terebratulina species. Cooper (1981a: 17) indicated the absence of deltidial plates, however, although minute they are present, both in the specimen from off South of Madagascar and the holotype. : Published as part of Bitner, Maria Aleksandra & Logan, Alan, 2016, Recent Brachiopoda from the Mozambique-Madagascar area, western Indian Ocean, pp. 5-41 in Zoosystema 38 (1) on page 18, DOI: 10.5252/z2016n1a1, http://zenodo.org/record/4578148 : {"references": ["COOPER G. A. 1981 a. - Brachiopods from the Southern Indian Ocean (Recent). Smithsonian Contributions to Paleobiology 43: 1 - 93.", "ZEZINA O. N. 2010. - Check-list of Holocene brachiopods annotated with geographical ranges of species. Paleontological Journal 44: 1176 - 1199.", "LOGAN A. 2007. - Geographic distribution of extant articulated brachiopods, in SELDEN P. A. (ed.), Treatise on Invertebrate Paleontology. Part H. Brachiopoda Revised. Geological Society of America and University of Kansas. Boulder, Colorado and Lawrence, Kansas, vol. 6: 3082 - 3115."]}