Ostraconotus A. Milne-Edwards, 1880

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 : 124

Ostraconotus A. Milne-Edwards, 1880

Diagnosis. Gills biserial, 10 pairs, no pleurobranch on somite XIII (thoracomere 7, above pereopod 4). Cephalothorax nearly completely calcified. Rostrum as rounded lobe. Ocular acicles simple. Crista dentata reduced, without accessory tooth. Chelipeds unequal, right largest. Pereopods 2 and 3 with paddle-shaped dactyls. Sternite of somite XII (thoracomere 6, pereopods 3) with elongate, slender, subrectangular anterior lobe. Pereopod 4 with broadly expanded and flattened propodus, no propodal rasp; dactyl elongate, simple. Pereopod 5 subchelate. Male with long sexual tube on coxa of right pereopod 5; coxa of left without sexual tube or with papilla; no unpaired pleopods. Female with pleopods 2–4. Abdomen reduced. Uropods symmetrical. Telson with terminal margin entire. Type species: Ostraconotus spatulipes A. Milne-Edwards, 1880 .