Naxioides robillardi ( Miers, 1882 )

Lee, Bee Yan, Forges, Bertrand Richer De & Ng, Peter K. L., 2017, Deep-sea spider crabs of the families Epialtidae MacLeay, 1838 and Inachidae MacLeay, 1838, from the South China Sea, with descriptions of two new species (Decapoda, Brachyura, Majoidea), European Journal of Taxonomy 358, pp. 1-37 : 4

Naxioides robillardi ( Miers, 1882)

Fig. 13A

Naxia (Naxioides) robillardi Miers, 1882: 339–341 , pl. 20 fig. 1 (type locality: Mauritius).

Hyastenus elegans Miers, 1886: 26 (list), 40 (list), 44 (list), 58–59, pl. 6 fig. 3.

Naxia mammillata Ortmann, 1893: 56 , pl. 3 fig. 7 (type locality: Kagoshima, Japan).

Naxioides robillardi – Balss 1929: 14 (list). — Griffin 1974: 21–22. — Griffin & Tranter 1986a: 169 (key), 171. — Poupin 1995: 86–96, 105 (key), figs 7, 8a–b, 9a–b. — Takeda & Komatsu 2005: 278. — Ng et al. 2008: 104 (list). — Richer de Forges & Ng 2013: 479 (list).

Naxioides mamillata – Rathbun 1911: 194 (list), 253. — Balss 1929: 14 (list). — Sakai 1938: 268–270, pl. 27 fig. 1; 1965: 78, pl. 35 fig. 1. — Serène & Lohavanijaya 1973: 52, figs 98–103, pl. 9C–D. — Takeda 1982: 124, un-numbered text-fig.

? Naxioides robillardi – Guinot & Richer de Forges 1986: 149 –150, pl. 11 figs A–D.

(For complete synonymy, see Poupin 1995: 89).

Material examined

SOUTH CHINA SEA: 1 ♂ (39.2 × 24.5 mm) ( ZRC 2016.0065), northwest of Dongsha, stn CP4159, 20°45.92′ N, 116°41.11′ E to 20°47.62′ N, 116°42.34′ E, 221– 190 m, coll. ZHONGSHA 2015 Expedition, 30 Jul. 2015.

Remarks

Poupin (1995) provided a detailed review of Naxioides mammillata Ortmann, 1893 (type locality Japan), under which he synonymised with N. robillardi ( Miers, 1882) (type locality Mauritius). On the basis of a large series of specimens from the Indian and Pacific Oceans, Poupin (1995) observed that there was too much variation in the carapace armature to recognise both as separate species. Poupin’s (1995) arguments in synonymising the two taxa are followed in this study.

Distribution

This species was recorded from Mauritius ( Miers 1882), Japan ( Ortmann 1893), the Indian and Pacific Oceans ( Poupin 1995) and South China Sea ( Serène & Lohavanijaya 1973).

Figures

Fig. 13. Colour in life. A. Naxioides robillardi (Miers, 1882), ♂ (39.2 × 24.5 mm) (ZRC 2016.01065), South China Sea. B. Oxypleurodon stimpsoni Miers, 1885, ♂ (with Sacculina, 14.0 × 9.0 mm) (ZRC 2016.0072), South China Sea. C. Oxypleurodon auritum (Rathbun, 1916), ♂ (16.7 × 11.1 mm) (ZRC 2016.0066), South China Sea. D. Oxypleurodon forte Lee, Corbari & Richer de Forges, 2015, ♂ (14.2 × 9.1 mm) (ZRC 2016.0078), South China Sea. E. Oxypleurodon sanctaeclausi Richer de Forges & Ng 2009, paratype, ♀ (18.7 × 16.8 mm) (ZRC 2009.0019) (after Richer de Forges & Ng 2009a). F. Stegopleurodon pteridion sp. nov., holotype, ♂ (13.1 × 7.9 mm) (NTOU), South China Sea. Scale bars: A = 10 mm; B–F = 5 mm.