Leptochiton fairchildi

• Main Author: Sirenko, Boris
• Format: Text
• Language: unknown
• Published: Zenodo 2020
• Subjects: Biodiversity; Taxonomy; Animalia; Mollusca; Polyplacophora; Lepidopleurida; Leptochitonidae; Leptochiton; Leptochiton fairchildi; Antarctic; New Zealand; Haddon; Antarc*; Macquarie Island
• Online Access: https://dx.doi.org/10.5281/zenodo.4486598; https://zenodo.org/record/4486598

Leptochiton fairchildi (Iredale & Hull, 1929) (Figure 9) Lepidopleurus kerguelenensis Hedley 1916: 34. Non Leptochiton kerguelensis Haddon, 1886. Terenochiton fairchildi Iredale & Hull 1929: 79, pl. 9, figs. 18–19; Cotton 1937: 12; Dell 1964: 268; Powell 1979: 21. Leptochiton (Leptochiton) fairchildi Kaas & Van Belle 1985: 156, fig. 71, map 28. Type material. Holotype (AM C.46625). Type locality. New Zealand, Macquarie Island. Material examined. New Zealand, Macquarie Island, R / V Eltanin, cruise 27, stn 1972, 54°30’S, 158°58’E, 31 m, 10 spms, BL 2.4–6.0 mm, 15.02.1967 (USNM?); Macquarie Island, R / V Dmitriy Mendeleev 30 m, 1 damaged spm (ZISP 2380), BL ca. 4 mm, 21.01.1976, leg. V. Averintsev. Distribution. Only known from Macquarie Island, on rocks, 30– 69 m. Remarks. Available specimen (BL ca. 4 mm) from Macquarie Island (30 m, R/V Dmitriy Mendeleev, 21.01.1976) was very damaged and it was only possible to study pieces of head and intermediate valves and the radula by SEM. It turned out that the tegmentum is smooth with very small, narrow grooves and with megalaesthete pores only, which are arranged in quincunx. The studied specimen has a radula with a length of about 1 mm and 24 transverse rows of mature teeth. The cusp of the major radular lateral tooth is tridentate, the denticles are almost of equal size. The specimen from the USNM sample with BL 6.0 mm has 7 gills arranged from valve six to anus. Besides the different radulae L. fairchildi differs from L. kerguelensis in the absence of granules in tegmentum but the presence of growth marks. : Published as part of Sirenko, Boris, 2020, New Zealand and Australian species of the genus Leptochiton (Mollusca Polyplacophora), pp. 401-449 in Zootaxa 4851 (3) on page 409, DOI: 10.11646/zootaxa.4851.3.1, http://zenodo.org/record/4407805 : {"references": ["Iredale, T. & Hull, A. F. B. (1929 - 1932) The loricates of the Neo-Zelanic region. Australian Journal of Zoology, 5 - 7, 305 - 323, pls. 30 - 34; 75 - 95, pls. 9 - 10 (1929), 157 - 166, pl. 16 (1930); 59 - 76, pl. 3 (1931), 119 - 164, pls. 7 - 10 (1932).", "Hedley, C. (1916) Mollusca. In: Australian Antarctic Expedition, 1911 - 14, under the leadership of Sir Douglas Mawton, D. Sc., B. E. Scientific Reports, C, Zoology and Botany, 4 (1), pp. 1 - 80, pls. 1 - 9. https: // doi. org / 10.5962 / bhl. title. 156403", "Haddon, A. C. (1886) Report on the Polyplacophora collected by H. M. S. \" Challenger \" during the years 1873 - 76. Challenger Reports, 15, 1 - 50, pls. 1 - 3.", "Cotton, B. C. (1937) Loricata. Reports of the British Australian and New Zealand Antarctic Research Expedition, 1929 - 1931, (B), 4 (1), 9 - 19, figs. 1 - 29, pl. 1.", "Dell, R. K. (1964) Antarctic and Subantarctic Mollusca: Amphineura, Scaphopoda, and Bivalvia. Discovery Reports, 33, 93 - 250, figs. 1 - 4, pls. 2 - 7.", "Powell, A. W. B. (1979) New Zealand Mollusca. Marine, Land and Freshwater shells. Collins, Auckland, Sydney and London, xiii + 500 pp., 121 figs., 82 pls., maps.", "Kaas, P. & Van Belle, R. A. (1985) Monograph of living chitons. 1. E. J. Brill / W. Backhuys, Leiden, 240 pp."]}