Actumnus elegans De Man, 1888

Wong, Kingsley J. H., Ng, Peter K. L., Shih, Hsi-Te & Chan, Benny K. K., 2024, Positive association between PTN polymorphisms and schizophrenia in Northeast Chinese Han population., Zoological Studies 63 (38), pp. 141-149 : 54

Actumnus elegans De Man, 1888

Actumnus elegans — Clark et al. 2008: 921.

Taxonomy: Chopra and Das (1937), Takeda and Miyake (1969c), Sakai (1983b).

Type: Syntype RMNH D 1356c, other syntypes possibly also in ZMA ( Fransen et al. 1997; Davie 2002).

Type locality: Lampi Island (as Sullivan Island), Mergui Archipelago, Myanmar.

Distribution: Eastern Indian Ocean to South China Sea and East Asia: Western Australia, Mergui Archipelago, the Philippines, South China, and Japan ( Takeda and Miyake 1969c; Garth and Kim 1983; Davie 2002; Clark et al. 2008).

Habitat: Subtidal; associated with epifauna, among coral head and sponges, often in areas with faster flowing waters ( Goh et al. 1990; Clark et al. 2008).

Remarks: The record presented by Clark et al. (2008) was identified based on work of Takeda and Miyake (1969c). The understanding of this species in the latter paper was considered erroneous by Sakai (1983b: p. 11), given frontal and anterolateral margins shown ( Takeda and Miyake 1969c: fig. 1) differ substantially from the syntype in the ZSI, illustrated by Chopra and Das (1937: text-fig. 12).

Actumnus setifer (De Haan, 1835) #

Actumnus setifer — Alcock 1898: 202; Gordon 1931: 527; Shen 1940a: 227; Horikoshi and Takeda 1982: tab. 1; Johnson et al. 2008: 262, figs. 1–3; Wong et al. 2021: 33, fig. 53, pl. 11A.

Taxonomy: Sakai (1939 1965), Takeda and Miyake (1969c), Campbell and Stephenson (1970).

Type: Lectotype ò and paralectotype in RMNH D 42108, 42109, paralectotypes also in RMNH and MNHN (designated by Yamaguchi and Baba 1993; see also Fransen et al. 1997).

Type locality: Japan, locality unspecified.

Distribution: Western Indian Ocean to Central Pacific: from South Africa, Mauritius, Red Sea, to Southeast and East Asia reaching Japan, towards New Caledonia, Australia, Vanuatu, Fiji, Samoa, and Tahiti ( Johnson et al. 2008).

Habitat: Subtidal; in crevices of rock or coral reefs, or depths from littoral to 200 m ( Dai and Yang 1991; Johnson et al. 2008); also reported to be excavating burrows in living or dead coral clumps ( Johnson et al. 2008).

Actumnus squamosus (De Haan, 1835) #

Actumnus squamosus — Wong et al. 2021: 35, fig. 54, pl. 11B.

Taxonomy: Sakai (1939 1965), Takeda and Miyake (1969c), Campbell and Stephenson (1970).

Type: Holotype RMNH D 44480: only maxilliped 3 extant ( Yamaguchi and Baba 1993; Fransen et al. 1997).

Type locality: Japan, locality unspecified.

Distribution: Eastern Indian Ocean to West Pacific: from Palk Strait ( India), Sri Lanka, Singapore, Southeast and East Asia reaching Japan, and Queensland ( Australia) ( Takeda and Miyake 1969c; Campbell and Stephenson 1970).

Habitat: Intertidal to subtidal; to depths of 35 m ( Sakai 1976).