Hedgpethia chitinosa ( Hilton, 1943 )

Sabroux, Romain, 2025, The genus Hedgpethia Turpaeva, 1973 (Pycnogonida: Colossendeidae): a review and a new species, European Journal of Taxonomy 1026, pp. 147-170 : 153-154

Hedgpethia chitinosa ( Hilton, 1943)

Fig. 2, Table 1

Colossendeis chitinosa Hilton, 1943: 4 .

Colossendeis chitinosa – Hedgpeth 1949: 301, fig. 47e–h. — Stock 1954: 161, fig. 79; 1958: tab. 1. — Utinomi 1955: 34–35, fig. 20; 1959: 220; 1971: 337–338. — Losina-Losinsky & Turpaeva 1958: 23–26, 32 [key], 33 [text], fig. 1, tabs 1, 4–5. — Child 1996: tab. 1.

Rhopalorhynchus chitinosum – Stock 1958: 116 [text], 118 [key], tab. 1; 1970: 9 [key].

Hedgpethia californica – Turpaeva 1973 [partim]: 185 [key], 186–189, tab. 2. — Child 1996: tab. 1.

Hedgpethia californica chitinosa – Turpaeva 1973: 186–189, tab. 3; 2002: 1451, 1451 [text], 1452 [key].

Hedgpethia chitinosa – Nakamura & Child 1983: 63, 63 [key]; 1991: 63. — Nakamura 1987: 36–37, pl. 33. — Stock 1991a: 166 [text]. — Turpaeva 1993: 21 [text]. — Dudnik & Kremenetskaia 2025: tab. 3.

Type material (not examined)

Holotype

BERING SEA • ♀; Aleutians West Census Area ( Alaska), Pribilof Islands, south of Saint George Island ; 56°1′59.88″ N, 169°30′ W; depth 0–221 m; 17 Jul. 1893; R/V Albatross , United States Fish Commission (USFC) stn 3500; USNM 81496 .

Paratypes BERING SEA • 3 specs; Aleutians West Census Area ( Alaska), Pribilof Islands, north of Saint Paul Island ; 58°23′ N, 170°21′ W; depth 3939 m; 11 Aug. 1895; USFC stn 3603; hosting institution unknown .

Distribution and depth range

Recorded from the Aleutian Islands and the Bering Sea, including off Pribilof Islands ( type locality), as well as around Japan (Sea of Japan, coasts of Honshu, Hokkaido and in the Tsushima Straits; Pacific coasts Honshu, Shikoku, Kyushu and down to southwest of Danjo Islands). Minimal known depth range 41–926 m? Hilton (1943) cites three specimens from 1771 fathoms ( 3939 m), and Dudnik (2025) records one specimen sampled at depths of 6410–6757 m. These four specimens should be reexamined for confirmation, and contamination should also be considered.