Halechiniscus perfectus Schulz, 1955
Material examined. Fifteen specimens (122–196 µm long), 5 females, 2 males, 2 second stage larvae (four clawed) and 6 specimens of undetermined gender collected in coral sand at Cook’s Bay, 0.5–1.0 m depth.
Remarks. The specimens perfectly match the description of the species in Ramazzotti & Maucci (1983). This species is widely distributed in both intertidal and subtidal sand, and it has been recorded in the Atlantic Ocean (Brazil, Celtic Sea, Faroe Banks, North Sea, Scotland), Indian Ocean, Mediterranean (Adriatic Sea, Alboran Sea, Balearic Sea, Ionian Sea, Tyrrhenian Sea), and the Pacific Ocean (Coral Sea, French Polynesia, Hawaii) (Schulz 1955; Renaud-Mornant 1967, 1971, 1976; Salvat & Renaud-Mornant 1969; de Zio Grimaldi et al. 1980a, b, 1983a; Morgan & O’Reilly 1988; Villora-Moreno & de Zio Grimaldi 1996; Hansen et al. 2001; Gallo et al. 2007; Moura et al. 2009; Jørgensen et al. 2010).