Decapoda - Brachyura - Epialtidae - Lahaina
| Lahaina incerta (Balss, 1938) |
World Distribution
Griffin & Tranter (1986) - Indonésie (Banda, Damar) et îles Marshall. 10-45 m. Comprend Mayotte, premier signalement. 'Reef W or S' in Balss (1938: 15) = subtidal?
Environnement : Marine - Substrat/Association : Hard bottom (rock and rubbles)
Vertical range : Shallow-waters (0-100 m) - Min-Max observed: 1-45 m
Mayotte data
Lahaina incerta (Balss, 1938)
Material examined — Mayotte KUW 2009, st. 17, northern reef, suction pump, 22 m, 1 M 8.5 x 2.8 mm (broken, spines limited), MNHN B32567, MNHN-IU-2009-1327; st. 25, south islet M'tzamboro, 15-20 m, 1 F with sacculina 13.9 x 5.3 mm, photo, MNHN B32568, MNHN-IU-2009-1328.
Remarks — These specimens determined by using key characters and figures in Griffin & Tranter (1986: 159, fig. 52a, d). Among the most noticeable characters, the spines of the carapace have small roselike spinules distally and the hiatus of the upper orbit, between supraorbital eave and postorbital lobe, is oval. A few differences are however observed whose specific value cannot be appreciated with two specimens only: presence of a minute intercalated spine (not reported for L. incerta); dorsal margins of meri of ambulatory legs with 2-3 spines behind the distal spine (a single spine in H. incerta).
Geographic and depth ranges — IWP, Mayotte (this work, first record in IO) to Indonesia, Marshall Islands; subtidal to 45 m. It seems that this is the first record of this species since the contribution of Griffin & Tranter (1986) and a first record in the Indian Ocean.
References : PDF list, 214 pp (1.4 Mo)This species in Worms Database