Petrolisthes shanyingi sp. nov.

urn:lsid:zoobank.org:act: 4E446B54-B050-4EE8-85CE-3C189AF78E7F

Petrolisthes shanyingi Fang, Dong, Yang & Li, 2023: 14, fig. 7F, 8A, B, E–I, 9. [Unavailable]

Type material. Holotype: MBM189319 (coll. no. LHT-HS5), male (CL 6.9 mm), Luhuitou, Sanya, Hainan Province, China, under stones, 30 March 2018.

Paratypes: MBM189320 (coll. no. LHT-HS), 14 males (CL 3.3–8.2 mm), 1 female (CL 3.7 mm), 3 ovigerous females (CL 4.6–8.7 mm), collected with holotype; MBM189321 (coll. no. SYHS-HS), 2 males (CL 5.2–5.6 mm), 1 ovigerous female (CL 5.9 mm), Houhai Village, Sanya, Hainan Province, China, in crevices of coral reef, 22 March 2018.

Diagnosis. Carapace generally glabrous, ovate, as long as or slightly longer than broad; lateral margins unarmed; pair of epibranchial spines well developed. Rostrum subtriangular; lateral margins sinuous. Telson composed of 7 plates. Second article of antennal peduncle with small lamellar lobe on anterior margin. Chelipeds glabrous; carpus with 3 broad, round-tipped teeth along proximal 2/3 length, proximal tooth prominent and triangular, second tooth comparatively low, distal tooth vestigial or at most subequal to second tooth; dorso-extensor margin with 3 acute spines on distal half; palm extensor margin entire. Ambulatory legs sparsely setose; merus unarmed on extensor margin, unarmed or with small distal spine on flexor margin of first and second legs; carpus distally unarmed; propodus with 4 movable corneous spines on flexor margin including distal pair; dactylus with 3 corneous spines on flexor margin.

Etymology. The new species is named after Shanying College, the Middle School affiliated to Qingdao University, in appreciation of their support for our marine biodiversity studies.