Decapoda - Brachyura - Varunidae - Ptychognathus

Ptychognathus barbatus (A. Milne-Edwards, 1873)

1 Illustration(s)

World Distribution
Keith et al. (2006 : 80) - Indo-ouest Pacifique. Madagascar, Comores (Anjouan, Mohéli), Indonésie, Japon, New Caledonia, Wallis & Futuna.
Distribution limited to New Caledonia in in Mazancourt et al. 2024, Zoosystema, fig. 6.

Environnement : Freshwater - Substrat/Association : Soft bottom (mud or sand)

Vertical range : Land & Freshwater - Min-Max observed: 0-6 m

Mayotte data
Ptychognathus barbatus (A. Milne-Edwards, 1873) — Keith et al., 2006: 36, Comoros (Anjouan, Mohéli). - Bouchard et al., 2013: 30, fig. 25A, Comoros, same as Keith et al. (2006) — IWP, Comoros (Anjouan, Mohéli), Madagascar to Japan, Wallis & Futuna; land, fresh/brackish water.
Comment - Ptychognathus barbatus is considered endemic to New Caledonia (Fig. 6, in Mazancourt et al. 2024, Zoosystema). Presence in Mayotte and others IWP places must be confirmed.

New Caledonia data
New Caledonia — Edwards AM, Nouv Arch MNHN 8: 229-267
Ptychognathus barbatus - Mazancourt et al. 2024 (Zoosystema): 283, New Caledonia - Type material. (All New Caledonia) Syntypes: MNHN-IU-2000-10877 (= MNHN-B10877), 3 male (dry material, mounted on board) 9.0–9.8 mm × 11.0–12.7 mm, coll. B. Balansa; MNHN-IU-2000-3395 (= MNHN-B3395), 1 male (dry material), coll. B. Balansa; MNHN-IU-2000-3401 (= MNHN-B3401), 2 male (dry material), coll. B. Balansa; MNHN-IU-2000-3394 (= MNHN-B3394), 2 male (dry material), male 10.0 mm × 12.0 mm, male 9.6 × 11.6 mm, coll. B. Balansa; MNHN-IU-2008-10675 (= MNHN-B12605), 1 male (in ethanol, regenerated dry material), coll. B. Balansa; RMNH-D192, 1 male (12.3 mm × 10.0 mm), coll. B. Balansa ; USNM-20308: 3 male (9.5–11.9 mm × 8.0–9.8 mm), 2 female (9.4–9.6 mm × 7.8 mm), coll. B. Balansa. Other material examined. NEW CALEDONIA. MNHN-IU-2019-210 (DNA voucher: CA2467), 1 male, 9.6 mm × 8.0 mm, Wadjana waterfall, 22°17.603'S, 167°0.859'E, coll. G. Marquet & V. de Mazancourt, 13 September 2018; MNHN-IU-2022-4124, 1 male, 8.8 mm × 7.7 mm, Wadjana waterfall, 22°17.603'S, 167°0.859'E, coll. G. Marquet & V. de Mazancourt, 13 September 2018;MNHN-IU-2017-8250, 3 male, 9.4 mm × 8.0 mm to 9.8 mm × 9.1 mm, 2 female, 8.7 mm × 7.7 mm, 9.0 mm × 7.9 mm, coll. B. Balansa.

Comment(s) on data
Apparently endemic to New Caledonia (Fig. 6, in Mazancourt et al. 2024, Zoosystema)

References : PDF list, 214 pp (1.4 Mo)

This species in Worms Database