Head wider than long, narrowing anteriorly, strongly pitted dorsally and laterally; rostrum very broad, bluntly rounded, little longer than anterolateral lobes; cheek definitely angular anteriorIy; eyes dark. Pereon with strong dorsolateral grooves complicated by some small pits, extensively pitted dorsally and laterally. Pereonite 1 with obsoletely biblobed ventral keel, not produced anteriorIy.
Pereonites 4-6 with transverse step between major part of dorsal surface and lower anterior area; dorsal pit reduced to a small keyhole-shaped notch at midpoint of this step. Pleonites 1-5 with small epimera, dorsolateral groove distinct, complicated by pits and not extending back to posterior margin; pitted laterally but free of pits mid-dorsally. Pleonite 6 fused with telson at midpoint. Telson thick; a low median carina along whole length but most prominent proximally, and smooth dorsolateral ridges on distal half, pitted dorsally between the 3 ridges and laterally; narrowly rounded terminally. Uropod peduncle with medial lobe square posteriorly; endopod not reaching to end of telson, bluntly rounded with scalloped lateral margin and concave medial margin; exopod with sinuous margin, folding alongside telson and not exceeding it dorsally, little longer than peduncle.
Antenna 2, article 2 short, dorsal flange subtriangular, much less than half width of front of head; flagellum of 6 articles, shorter than peduncle article 5. Mandible with prominent molar bearing sharp accessory tooth; palp reaching beyond incisor, article 2 the longest with a single long subterminal seta, article 3 narrow, curved, with transverse row of 4 setae. Maxilla narrow, sharply curved end; 5 hooks and 2 spines. Maxilliped articles 2, 3 broad, laterally produced; article 3 rounded terminally, 4 short setae on medial margin, ventral face with 2 proximal setae, near distal suture and 1 near outer distal edge; article 4 small, ovoid, subterminal, scarcely exceeding end of 3, with 6 setae. Pereopod 1 with straight, blade-like palm on axis of limb, few medial setae and 1-2 laterally near palm edge; unguis 0.25 length of dactylus.
Source: Poore, G.C.B. (1975) Australian species of Haliophasma (Crustacea: Isopoda: Anthuridae). Records of the Australian Museum, 29, 503-533.