Thor amboinensis (De Man, 1888)

(Fig. 3A)

Material examined. 1 ov. female (pocl 1.4), Stn. Dive 6, near Aka-todai, 26°21.225´N 126°49.628´E, depth 15–30 m, 10 Nov. 2009, NTOU M1160; 2 females (pocl 1.2, 1.7), Stn. Dive 16, Koukou-mae (in front of high school), 26°19.885´N 126°45.616´E, depth <4 m, 14 Nov. 2009, NTOU M01150; 1 female (pocl 1.4), Stn. Dive 35, Akatodai, 26°19.251´N 126°45.354´E, depth 15 m, 18 Nov. 2009, NTOU M01151; 1 female (pocl 1.1), Stn. Dive 42, Ara, 26°19.00´N 126°46.50´E, depth 18 m, 20 Nov. 2009, RUMF-ZC-1530; 1 female (pocl 1.3), Stn. Intertidal 2, Ifu Beach, 26°20'08.0" N 126°48'57.5" E, 17–18 Nov. 2009, night collecting, RUMF-ZC-1531; 1 ov. female (pocl 1.3), 1 female (pocl 1.1), 1 damaged specimen (pocl 0.9), Stn. Dredge 52, 26°20.409´N 126°49.675´E – 26°20.018´N 126°49.224´E, depth 4.5–5.1 m, 17 Nov. 2009, NTOU M01152.

Distribution. Widely distributed in the Indo-West Pacific and parts of the West Atlantic. Previously reported from Kumejima by Kawamoto & Okuno (2001).