Sakaija Ng & Forges 2015, n. gen.

Key to species of Sakaija n. gen. 1. Pseudorostral spines very long; posterior carapace margin with 2 spines and long intestinal spine (Fig. 29); G1 gently curved, distal part with long setae, with low subdistal swelling (Fig. 33N–R); Western Indian Ocean............................................................................. Sakaija africana (Griffin & Tranter, 1986) – Pseudorostral spines not elongate; posterior carapace margin with 2 short spines, sometimes not discernible, intestinal spine short or not visible (Figs. 28, 30, 32); G1 otherwise............2 2. Carapace with very long lateral, branchial and intestinal spines (Fig. 32A, B); Eastern Indian Ocean.................................................................................................. Sakaija longispina n. sp. – Carapace with relatively short lateral, branchial and intestinal spines (Figs. 28, 30, 32C, D)..................................................3 3. Carapace with 2 subhepatic spines, one of which is small (Fig. 32C, D); G1 sinuous, distal part turned backwards towards median line of sternum, with very long setae (Fig. 33S–U); Vanuatu and New Caledonia.................... Sakaija santo n. sp. – Carapace with single visible hepatic spine (Figs. 28, 30); G1 otherwise..................................................................................4 4. Carapace with posterior part rounded, prominently swollen; lateral spines low; ambulatory legs relatively short, stout (Figs. 28A–C, 31A–C); G1 distinctly curved, distal part long, tapering with very long setae (Fig. 33A–G); Japan and Taiwan....................................................... Sakaija japonica (Rathbun, 1932) – Carapace more evenly ovate in appearance; lateral spines short but distinct; ambulatory legs slender, more elongate (Figs. 28 D-G, 30); G1 otherwise......................................................5 5. Cardiac spine long, intestinal spine distinct (Fig. 28D, E, G); G1 gently curved, distal part relatively short, subspatuliform, lined with long setae (Fig. 33H–J); Japan................................................................ Sakaija sakaii (Takeda & Miyake, 1969) – Cardiac and intestinal spines very low, almost undiscernible (Figs. 30, 31D, E); G1 gently curved, distal part long, tapering with very long setae (Fig. 33K–M); Philippines, New Britain and Papua New Guinea.......................... Sakaija serenei n. sp. Published as part of Ng, Peter K. L. & Forges, Bertrand Richer De, 2015, Revision of the spider crab genus Maja Lamarck, 1801 (Crustacea: Brachyura: Majoidea: Majidae), with descriptions of seven new genera and 17 new species from the Atlantic and Indo-West Pacific, pp. 110-225 in Raffles Bulletin of Zoology 63 on page 168, DOI: 10.5281/zenodo.5384590