Tuerkayana latens Ng and Hsi-Te Shih 2023, n. sp.

• Main Author: Ng and Hsi-Te Shih, Peter K. L.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2023
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Decapoda; Gecarcinidae; Tuerkayana; Tuerkayana latens; Rotunda; Henderson Island
• Online Access: https://zenodo.org/record/8075413; https://doi.org/10.5281/zenodo.8075413

Tuerkayana latens n. sp. (Figs. 3, 4, 7C, D, 8F, 9D, 10D, H, 11D, H, L) urn:lsid:zoobank.org:act: 238242FD-2DD3-4AAD-901E-0362737978D4 Cardisoma rotundum – Türkay 1974a: 234, figs. 1, 14 (part); Poupin 1994: 54, pl. 6g; Poupin 1996: 66. Discoplax rotunda – Poupin 2010: 42 (part); Poupin and Juncker 2010: 56 (part); PKL Ng and Shih 2015: 382. (not Thelphusa rotunda Quoy & Gaimard, 1824). Material examined: Holotype: male (52.8 × 42.7 mm) (MNHN-IU-2011-5594), Niau Atoll, Tuamotu, French Polynesia, coll. J. F. Butaud, 2006. Others: Pitcairn Islands – 1 dried carapace (right side broken off) (75.2 × 56.7 mm) (UF 5457), North Beach, Henderson Island, coll. S. Waldren, 1 January 1997. Diagnosis: Frontal region covered with small granules; epigastric, epibranchial and anterior part of mesobranchial regions with scattered low granules and low striae, surface appears relatively smoother; mesogastric, metagastric regions smooth; posterior part of meso-, metabranchial regions with few oblique striae and granules; epigastric regions prominent, margin relatively sharp; postorbital cristae strong, separated from epigastric by shallow concavity; external orbital tooth broadly triangular, margin confluent with anterolateral margin, separated by small cleft (Figs. 3A, B, 7D). Merus of third maxilliped subovate, as long as wide (Fig. 7C). Surfaces of adult chelae with low granules on margins, punctate to rugose (Fig. 9D). Ambulatory legs short; ratios of maximum length to maximum width of third and fourth ambulatory meri 2.5, 2.4, respectively; surfaces covered with striae, appears rugose; dorsal margin of merus rugose, uneven; lateral margins of propodus, dactylus lined with strong, stiff spines or setae (Figs. 3A, 10D, H). Male pleon relatively broad; somite 6 wider than long, lateral margins strongly convex (Figs. 8G). Adult G1 almost straight, when viewed from ventral perspective; distal part curved at angle of about 45° from vertical; distal part of outer margin forming gentle shelf–like structure; base of the distal ...