This paper reports the first documented record of bathyal fish Glyptophidium oceanium Smith & Radcliffe, 1913 from the Indian Ocean. The species is redescribed and meristics and morphometrics were compared with its holotype. Glyptophidium oceanium is very similar to the closely related species G. japonicum Kamohara, 1936 in terms of the number of pseudobranchial filaments and pectoral fin rays, but differs from the latter in having more developed gill rakers, a larger orbit and a more slender body. The report of this poorly known bathyal fish species helps in unravelling the rich deep-sea ichthyofaunal biodiversity of India, which is still not fully investigated.
