Decapoda - Brachyura - Xanthidae - Liomera
| Liomera edwardsi Kossmann, 1877 |
World Distribution
Serène (1984 : 59) - Mer Rouge, Mayotte, Amirantes, Chagos, Australie, Japon.
Environnement : Marine - Substrat/Association : Hard bottom (rock and rubbles)
Vertical range : Shallow-waters (0-100 m) - Min-Max observed: 1-35 m
Mayotte data
Liomera edwardsi Kossmann, 1877
Material examined — Mayotte KUW 2009, st. 27, Islet Mbouzi, "Patate Sud-Est", 4-20 m, 2 MM 9.0 x 14.4 & 10.2 x 17.0 mm (10.3 x 17.3 on photo, field label), 1 F 10.8 x 17.6 mm, MNHN B32354, MNHN-IU-2009-1127.
Other records — Serène, 1984 : 58, pl. V C, Mayotte, 30 m, coll. A. Crosnier March 1959, 1 F 4.6 x 7.0 mm, MNHN-B 8428; Salomon, Mer de Chine.
Remarks — Specimens collected at st. 27 were first attributed to Liomera tristis (recorded as such in MHNN collection in December 2017). The male pleopod is rather similar to that of Liomera tristis and the legs are banded in white in both species. Mayotte specimens are ultimately attributed to L. edwardsi because of: a) carapace less elongated (CW/CL about 1.68 in L. edwardsi versus 1.76 in L. tristis) with posterolateral margins making an angle of about 45° between lateral angle and posterior margin (less than 45° in L. tristis); b) anterolateral teeth of the carapace angulous (rounded in L. tristis); c) and much longer dactyls of ambulatory legs (P5 dactyl is included only 3.55 times in carapace length in C. edwardsi, versus 5.9 in L. tristis).
Geographic and depth ranges — IWP, Red Sea, Mayotte, Madagascar to Japan, northern Australia; subtidal, 15-35 m.
References : PDF list, 214 pp (1.4 Mo)This species in Worms Database