Pilumnus cursor A. Milne-Edwards, 1873

Pilumnus cursor A. Milne-Edwards, 1873 View in CoL

? Pilumnus cursoni — J Jiang and Zhou 1982: 681.

Taxonomy: Ng (1988a).

Type: Syntype ñ in MNHN ( Ng 1988a).

Type locality: New Caledonia.

Distribution: Indo-West Pacific: so far confirmed from Phuket, Thailand and New Caledonia only (see Remarks below).

Habitat: Subtidal; in coral rock ( Ng and Davie 2002).

Remarks: Records elsewhere previously recognized as “ P. cursor ” comprises a species complex, and various of these in the region had been referred to other species ( Ng 1988a). This local record is thus very likely “either incorrect or suspicious” ( Ng and Davie 2002: p. 382) and needs to be verified. Until then, we retain this record for the time being.

Pilumnus longicornis Hilgendorf, 1878 #

? Pilumnus andersoni View in CoL — Shen 1940a: 228.

? Pilumnus cf. andersoni View in CoL — Horikoshi and Takeda 1982: tab. 1.

Pilumnus longicornis View in CoL — Horikoshi and Takeda 1982: tab. 1; Morton and Morton 1983: 273.

Taxonomy: Balss (1933), Sakai (1939), Takeda and Miyake (1968).

Type: Holotype ò in ZMB ( Balss 1933).

Type locality: Inhambane, Mozambique.

Distribution: Western Indian Ocean to Central Pacific: from South Africa, Madagascar, Persian Gulf, Arabian Sea and Bay of Bengal, to Southeast and East Asia reaching Japan, and Indonesia, Australia, New Zealand towards Hawaii ( Takeda and Miyake 1968; Garth and Kim 1983; Yang et al. 2008).

Habitat: Intertidal and subtidal; rocky shores down depths of 10 to 20 m, also on sandy substrates down to depths of 85 m ( Sakai 1976).

Remarks: Balss (1933) synonymized P. andersoni De Man, 1887 (type locality Mergui Archipelago) under P. longicornis Hilgendorf, 1878 , arguing that the morphological variations between the two (whether frontal and supraorbital margin denticulate) were age-dependent. Shen (1940a), however, cited Alcock (1898: p. 191) who interpreted the two as distinct, listing the Hong Kong material as P. andersoni . Following Balss (1933) for the moment, we list the Hong Kong records under P. longicornis .

Pilumnus minutus De Haan, 1835 #

? Pilumnus cf. minutus View in CoL — Horikoshi and Takeda 1982: tab. 1; Wong et al. 2021: 36, fig. 56, pl. 11D.

Pilumnus minutus View in CoL — Ong Che and Morton 1992: tab. 1.

Taxonomy: Sakai (1939), Takeda and Miyake (1968).

Type: Status unknown ( Davie 2002; not reported by Yamaguchi and Baba 1993).

Type locality: Japan, locality unspecified.

Distribution: Western Indian Ocean to West Pacific: from South Africa, Maldives, Red Sea, Persian/ Arabian Gulf, Bay of Bengal, Southeast and East Asia to Japan, Indonesia, Australia and New Caledonia ( Takeda and Miyake 1968; Yang et al. 2008).

Habitat: Intertidal to subtidal; along crevices of rocks, or on sandy or muddy substrates, or in sponges; depth up to 50 m ( Dai and Yang 1991).