Schizophroida, Sakai, 1933

Ng, Peter K. L. & Ahyong, Shane T., 2018, New Species of Reef Spider Crabs of the Genus Schizophroida Sakai, 1933 (Crustacea: Brachyura: Majidae) from the Western Pacific, Records of the Australian Museum (Rec. Aust. Mus.) 70 (4), pp. 377-390 : 387

Key to species of Schizophroida

1 Carapace posterolateral margin without subdorsal tubercle between posteromedian spines and posterior branchial marginal spine .................................................................................... [ Japan] S. simodaensis Sakai, 1933

—— Carapace with posterolateral margin with subdorsal tubercle

between posteromedian spines and posterior branchial marginal

spine .......................................................................................................................................... 2

2 Basal antennal article with inner distal spine as long as outer spine. Supraorbital eave anteriorly wider than half basal width of rostral spines ................................................................ [Hawaii] S. hilensis ( Rathbun, 1906)

—— Basal antennal article with inner distal spine longer than outer spine. Supraorbital eave anteriorly narrower than half basal width of rostral spines ......................................................................................................................... 3

3 Sinus between intercalated spine and posterior spine of supraorbital eave wide, internal margins divergent .................... [ Taiwan, Guam] S. gracilis sp. nov.

—— Sinus between intercalated spine and posterior spine of supraorbital eave narrow, internal margins subparallel, U-shaped .................................................... 4

4 Rostral spines divergent. Carapace marginal branchial spines and posteromedian spines curving upwards ................... [Easter Island] S. moai Ng & Boyko, 2017

—— Rostral spines subparallel. Carapace marginal branchial spines and posteromedian spines straight, although inclined upwards ............................................................................ [ Australia, New Zealand] S. colemani sp. nov.