Phylladiorhynchus pusillus (Henderson 1885)

Type data: syntypes, 1 male, 2 females, BMNH 1888:33. Type locality: Twofold Bay, Australia, 36º59´S, 150º20´E, 275 m. Note extract from Ahyong, S.T. (2007) Decapod Crustacea collected by the NORFANZ Expedition: Galatheidae and Polychelidae. Zootaxa, 1593, 1-54: As presently understood, P. pusillus could be a composite taxon.

Carapace, with 4 epigastric spines in transverse row. Rostrum, lateral margins convex or nearly straight, with very small or obsolete subterminal lateral spines. Dactylus of walking legs with 6-9 ventral marginal spines (usually 7-8). Sternite 3 anterior margin with blunt median process, without acute lateral processes.

Delta keys for squat lobsters, including Phylladiorhynchus pusillus are available at http://researchdata.museum.vic.gov.au/squatlobster/delta/deltakey.htm

Widespread species in the Indo-Pacific: the Indo-West Pacific from Red Sea, Providence, eastern Australia between Queensland and Victoria, and Tasmania, Chesterfield Islands, New Zealand, East China Sea, Japan from off Kagoshima northward to Tsugaru Strait; in pool on reef to a depth of 580 m; in the eastern Pacific from Juan Fernandez Islands in 130-160 m, and San Felix Island in 75 m.

Carapace and abdomen transparent, pale yellow-orange; with orange-red marginal spines and rostrum. Chelipeds clear, diffuse pink-red; spines orange-red. Fingers crossed by white band. Walking legs with diffuse, clear orange-red banding.

小葉額鎧蝦（学名：Phylladiorhynchus pusillus）为鎧甲蝦科葉額鎧蝦屬下的一个种。

Known from seamounts and knolls