Phylladiorhynchus erebus Schnabel & Ahyong, 2019

Rodríguez-Flores, Paula C., Macpherson, Enrique & Machordom, Annie, 2021, Revision of the squat lobsters of the genus Phylladiorhynchus Baba, 1969 (Crustacea, Decapoda, Galatheidae) with the description of 41 new species, Zootaxa 5008 (1), pp. 1-159 : 38

Phylladiorhynchus erebus Schnabel & Ahyong, 2019

Phylladiorhynchus erebus Schnabel & Ahyong, 2019: 311 , figs. 4, 5.

Diagnosis (modified from Schnabel & Ahyong 2019). Rostrum triangular, subapical spines obsolescent, lateral margins straight. Carapace with transverse row of 5 epigastric spines; parahepatic spines on protogastric region absent; anterior protogastric ridge usually medially interrupted; anterior metagastric ridge scale-like; anterior branchial margin with 3 spines. Pleonal tergite 3 without posterior transverse ridge. Thoracic sternite 3 anterior margin sinuous, with shallow median concavity. Antennular article 1 with 5 or 6 distal spines: distomesial spine distinctly shorter than upper distolateral spine. Antennal article 1 mesial process distally falling well short of second lateral antennular spine; article 2 distolateral and distomesial spines subequal; article 3 with small to distinct mesial spine, laterally unarmed. Mxp3 merus with 2 prominent spines on flexor margin. P2–4 dactylus extensor margin without upright spines at bases of movable spines.

Genetic data. COI, Table 1.

Distribution. New Zealand, Norfolk and Kermadec ridges, at 290– 506 m.

Remarks. This species is characterized by the presence of 5 epigastric spines, 3 spines on the anterior branchial margin and the anterior protogastric ridge usually medially interrupted. The species is closely related to P. acastus from the Philippines, Papua New Guinea, Vanuatu, Chesterfield Islands and New Caledonia, P. argus , from French Polynesia, New Caledonia and Chesterfield Islands, P. paula , from SW Indian Ocean, and P. eneus from Indonesia to New Caledonia (see the differences under the Remarks of P. eneus ).