Pilumnus trispinosus

Pilumnus trispinosus (Sakai, 1965) Parapilumnus trispinosus — Horikoshi and Takeda 1982: tab. 1; Morton and Morton 1983: 273. Taxonomy: Sakai (1965: as Parapilumnus), Takeda and Miyake (1969c: as Parapilumnus); on Parapilumnus Kossmann, 1877: Ng (2002b), Ng and Chen (2004a). Type: Syntypes in BLIH. Type locality: Sagami Bay, Japan. Distribution: West Pacific: from South China, Taiwan, Japan, to Fiji (Sakai 1976; Horikoshi and Takeda 1982; Hsueh et al. 2009). Habitat: Intertidal; along rocky shores, entangled to Sargassum seaweed (Sakai 1976).