Modiolus matris Pilsbry 1921

• Main Authors: Raines, Bret, Huber, Markus
• Format: Text
• Language: unknown
• Published: Zenodo 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Mollusca; Bivalvia; Mytilida; Mytilidae; Modiolus; Modiolus matris; Austral; Kay; Gomez; Modiolus modiolus
• Online Access: https://dx.doi.org/10.5281/zenodo.5250626; https://zenodo.org/record/5250626

Modiolus matris Pilsbry, 1921 Figures 5 G–J Modiolus matris Pilsbry, 1921: p. 321, pl. 12, fig. 18. Volsella matris Pilsbry, 1921 — Dall et al ., 1938: p. 44, pl. 7, figs. 12–15. Modiolus matris Pilsbry, 1921 — Kay, 1979: p. 512, figs. 164 K–L; Rehder, 1980: p. 107, pl. 13, figs. 7–8; Preece, 1995: p. 350; Tröndlé & Boutet, 2009: p. 4; Huber, 2010: p. 123, fig. 6; Severns, 2011: p. 438, pl. 200, fig. 3. Material examined. Ten single valves (3.2 to 6.7 mm) from EI , plus specimens from the Hawaiian Islands (MHU), Marquesas Islands (MHU) and Pitcairn Island (BK). Diagnosis. Shell small, somewhat rhomboidal, equivalve, inflated, thin and fragile, with a rounded dorsal margin and a gently concave ventral margin. Exterior surface consisting of fine, close-set commarginal threads, with a thin, hairy periostracum. Color creamy white to pale yellow background with irregular reddish brown radial streaks and blotches. Remarks. The EI specimens conform to the Hawaiian and Marquesas material, though small compared to the maximum Hawaiian size of 19.3 mm. Habitat. Occasionally found at several locations around EI , in fine sand, from 30–100 m. Distribution. Modiolus matris was originally described from Oahu, Hawaii, but also known from Marquesas Islands, Austral Islands, Pitcairn Islands and Easter Island— E5 . : Published as part of Raines, Bret & Huber, Markus, 2012, 3217, pp. 1-106 in Zootaxa 3217 on pages 14-15 : {"references": ["Pilsbry, H. A. (1921) Marine Mollusca of Hawaii VIII - XIII. Proceedings of the Academy of Natural Sciences, Philadelphia, 72, 296 - 326.", "Dall, W. H., Bartsch, P. & Rehder, H. A. (1938) A manual of the recent and fossil marine pelecypod mollusks of the Hawaiian Islands. Bernice P. Bishop Museum Bulletin, 153, 1 - 33.", "Kay, E. A. (1979) Hawaiian Marine Shells. Reef and shore fauna of Hawaii Sec. 4: Mollusca. Oahu, Hawaii (Bishop Museum Press), 653 pp.", "Rehder, H. A. (1980) The marine mollusks of Easter Island (Isla de Pascua) and Sala y Gomez. Smithsonian Contributions to Zoology, Number 289, 167 pp.", "Preece, R. C. (1995) The composition and relationships of the marine molluscan fauna of the Pitcairn Islands. Biological Journal of the Linnean Society, 56, 339 - 358.", "Trondle, J. & Boutet, M. (2009) Inventory of marine molluscs of French Polynesia. Atoll Research Bulletin, 570, 1 - 87.", "Huber, M. (2010) Compendium of Bivalves. A full-color guide to 3,300 of the world's marine bivalves. A status on Bivalvia after 250 years of research. ConchBooks, Hackenheim, Germany, 901 pp., 1 CD.", "Severns, M. (2011) Shells of the Hawaiian Islands. The Sea Shells. ConchBooks, Hackenheim, Germany, 564 pp."]}