Subfamily Sinelobinae Sieg, 1980

Diagnosis. Modified from Sieg (1980). Four free pleonites. Pleonites 1 and 2, and also pleonite 3 in some species, each with a dorso-transverse row of setae. Antennule with four articles, and three or fewer aesthetascs on terminal article. Antenna with six articles. Labium outer lobe without terminal process. Left mandible lacinia mobilis well-developed, tooth-like and with undulate outer margin. Right mandible lacinia mobilis peg-like or tooth-like. Maxillule endite with seven to nine distal spiniform setae. Cheliped fixed finger distally flattened into anvil-shaped process. Pereopod 1 coxa without anterior bulge; dactylus and unguis slender and almost straight. Pereopods 4 to 6 dactylus and unguis fused to form a claw with lateral row of fine setae. Pereopod 6 propodus distal margin with row of leaf-like or flattened denticulate setae. Uropod with three or four articles. Sexual dimorphism low or high.

Remarks. This subfamily contains three genera, Parasinelobus, Sinelobus (type genus) and Xenosinelobus n. gen. (see below).