Protoniopagurus Lemaitre and McLaughlin, 1996

McLaughlin, P. A., 2003, Illustrated keys to families and genera of the superfamily Paguroidea (Crustacea: Decapoda: Anomura), with diagnoses of genera of Paguridae, Memoirs of Museum Victoria 60 (1), pp. 111-144 : 126

Protoniopagurus Lemaitre and McLaughlin, 1996

Diagnosis. Gill biserial, 11 pairs. Rostrum obtusely triangular. Ocular acicles simple or bifid. Crista dentata with 1 accessory tooth. Chelipeds subequal; right slightly larger, both suboperculate. Sternite of somite XII (thoracomere 6, pereopods 3) with small subquadrate anterior lobe. Pereopod 4 semichelate; propodal rasp with 10–12 rows of corneous scales; no preungual process. Male without unpaired pleopods. Female with pleopod 1 paired, modified; pleopods 2–4. Abdomen reduced. Uropods symmetrical. Telson with terminal margin entire. Type species: Protoniopagurus bioperculatus Lemaitre and McLaughlin, 1996 .