Heteronida
Heteronida Baba and de Saint Laurent, 1996: 474 [type species: Bathymunida aspinirostris Khodkina, 1981. Gender: feminine]. – Baba 2005: 87. – Baba et al. 2008: 81 (list of species and synonymies). – Baba et al. 2009: 130.
Carapace finely granulate, without distinct transverse striae. Gastric region with laterally compressed, anteriorly bluff strong process. Pair of epigastric spines obsolescent. Rostral base broad, rostral spine rudimentary, supraocular spines blunt. Sternite 4 having anterior margin narrower than posterior margin of sternite 3. Abdominal somites 2 and 3 each with strong median process flanked by low process at lateral end of tergite. Telson subdivision complete. Ocular peduncles short, cornea somewhat dilated. Basal article of antennule with 2 terminal and 1 lateral spine, all small. Article 2 of antennal peduncle slender; flagellum short, terminating in end of antennular flagellum. Mxp3 ischium ending in lobe-like process on flexor distal margin; merus short, lobe-like on flexor margin, with strong spine on extensor distal margin. P2–4 dactyli with row of seta-like spines on flexor margin. P5 with brush of plumose setae on flexor face of chela. G1 absent; G2 present.