Cyrtomaia owstoni Terazaki, 1903

Cyrtomaia owstoni Terazaki, 1903: 239, 240 (un-numbered text-fig.) (type locality: Misaki, Japan).

Cyrtomaja owstoni [sic] – Sakai 1938: 240, pl. 35 fig. 1; 1965: 71, pl. 31 fig. 2.

Cyrtomaia owstoni – Serène & Lohavanijaya 1973: 45 (key), 46–47, figs 73–78, pl. 7 C, D. — Sakai 1976: 178 (key), 179, pl. 59. — Griffin 1976: 188. — Griffin & Tranter 1986a: 24 (key), 29–30. — Ikeda 1998: 32–33, pl. 30. — Richer de Forges & Ng 2007: 56 (list). — Ng et al. 2008: 111 (list).

Material examined

SOUTH CHINA SEA: 1 ♂ (22.0 × 24.4 mm) (ZRC 2016.0088), south of Taiwan bank, stn CP4166, 22°07.62′ N, 118°43.30′ E to 22°03.29′ N, 118°45.46′ E, 587–756 m, coll. ZHONGSHA 2015 Expedition, 1 Aug. 2015; 1 ♂ (11.6 × 12.4 mm), 1 ♀ (17.1 × 18.6 mm) (ZRC 2016.0087), south of Taiwan Bank, stn CP4165, 22°09.89′ N, 118°42.02′ E to 22°07.29′ N, 118°43.39′ E, 443–618 m, coll. ZHONGSHA 2015 Expedition, 1 Aug. 2015.

Remarks

Cyrtomaia owstoni Terazaki, 1903, is characterized by the curved branchial spines that are longer than the protogastric spines (Griffin & Tranter 1986a).

Distribution

The species is known from Japan (Sakai 1938, 1965, 1976; Ikeda 1998), the Philippines (Griffin 1976) and South China Sea (Serène & Lohavanijaya 1973).