Hydrophis torquatus Ģnther, 1864 — Erroneous.

West Coast Black-headed Sea Snake

Singapore records.

Hydrus nigrocinctus — Cantor, 1847c: 1050, 1057, 1072.

Hydrophis torquatus — Flower, 1896: 892.—Sworder, 1923: 69.—K.K.P. Lim & L.M. Chou, 1990: 55.— K.K.P. Lim & F.L.K. Lim, 1992: 149.—L.M. Chou et al., 1994: 105.—K.P. Lim & F.L.K. Lim, 2002: 148.— Das, 2010: 322.

Hydrophis torquatus torquatus — Iskandar & Colijn, 2001: 137.

Hydrophis diadema —Sworder, 1923: 69.

Chitulia torquata —Chan-ard et al., 2015: 277.

Remarks. Cantor (1847c) first listed Singapore as a locality for H. torquatus, and said it is rare based on catches in fishing nets (Cantor 1847c). No additional specimens or reported observations for H. torquatus exist. Subsequent publications likely refer to Cantor (1847c). Since there are inconsistencies regarding the localities of Cantor’s specimens, we refrain from including H. torquatus into Singapore’s herpetofauna checklist.

LKCNHM & NHMUK Museum specimens. No specimens.

Additional Singapore museum specimens. No specimens.

Family Homalopsidae Bonaparte, 1845 (2 species)

Genus Myrrophis Kumar, Sanders, George & Murphy, 2012 (2 species)