Macrurocyttus is a monotypic genus of tinselfish, family Grammicolepididae. The only species is Macrurocyttus acanthopodus, the dwarf dory. It is native to the western Pacific Ocean where it has been found in the deep waters around the Philippines and Australia on the continental slope at depths at around 878mto1190mm (2,881feetto3,900feetm). It is dark brown species with a relatively shallow body and large eyes. Pelvic fins have a single, large serrated spine. It is scaleless. It can grow to 4.5cm (01.8inches) standard length.