Lycomysis spinicauda Hansen, 1910

= Lycomysis pusilla Zimmer, 1915

Type locality. Butung Strait, Indonesia (Hansen 1910) .

Record from Thailand. South-eastern Andaman Sea, next to Phuket Island (Fukuoka & Murano 2002).

Habitat and depth range. Marine, depth: 19–60 m (Fukuoka & Murano 2002) .

Distribution. This species is known from Indonesia (Hansen 1910), Sri Lanka to New Guinea (Zimmer 1915), South China Sea (Colosi 1919; Liu & Wang 1986), Andaman Islands (W.M. Tattersall 1922), Andaman Sea (Fukuoka & Murano 2002; Biju & Panampunnayil 2011) and Malaysia (Gan et al. 2010; Tan & Azman 2018)

Remarks. The species Lycomysis spinicauda is very similar in appearance to L. platycauda, however, the first species is recognized by the following characteristics: the apex of the telson is subtruncate, with two pairs of long spines and two pairs of very short spines and the uropodal endopod is without spines; while in the latter species, the apex of the telson is rounded, with five pairs of long spines and uropodal endopod is armed with four spines below the statocyst (Biju & Panampunnayil 2011).