Decapoda - Brachyura - Xanthidae - Monodaeus

Monodaeus tuberculidens s.l. (Rathbun, 1911)

World Distribution
Crosnier (1976 : 246), Serène (1984 : 87) - Océan Indien occidental. Afrique du Sud, Saya de Malha, Madagascar, Réunion. Entre 72-420 m. Mayotte premier signalement.
Guinot & Macpherson (1988) -

Environnement : Marine - Substrat/Association : Hard bottom (rock and rubbles)

Vertical range : Shallow to deep-waters (e.g. 10-190 m) - Min-Max observed: 6-420 m

Mayotte data
Monodaeus tuberculidens (Rathbun, 1911) s.l.
Material examined — Mayotte KUW 2009, st. 19, Islet Handrema, north 6-10 m, 1 M 6.3 x 9.1 mm, MNHN-IU-2009-3235, det. October 2011.
Remarks — Guinot & Macpherson (1998) have revised several specimens of Monodaeus tuberculidens, including the type specimen from Saya de Malha Bank (229 m) and specimens from Réunion and Madagascar. Because of morphological variations observed they have attributed the specimens from Réunion to M. aff. tuberculidens. They also indicate that previous records from Madagascar and South Africa are in need of revision to confirm M. tuberculidens. The specimen examined herein from Mayotte present most of the characters of M. tuberculidens as indicated in Guinot & Macpherson (1998) except for the armament of upper margins of P2-P5 meri that have sharp spines instead of sharp granules for the holotype, which can be attributed to its small size (6.3 x 9.1 mm versus 12 x 18.2 mm for holotype). Due to the remarks and observations in Guinot & Macpherson (1998), however, and until more specimens are available from Mayotte to better appreciate the intraspecific morphological variations in M. tuberculidens, the present record from Mayotte is attributed to M. tuberculidens sensu lato.
Geographic and depth ranges — WIO, ?South Africa, Mayotte (this work), ?Madagascar, ?Réunion, Saya de Malha Bank; subtidal to 229 m, ?420 m.

Réunion data
Monodaeus tuberculidens - Guinot, 1967 : 368, fig. 30 (Réunion, 250-300 m). - Crosnier, 1976 : 246 (Réunion, coll. P. Guézé, Saint Paul 1/03/1973, casier 420 m, MNHN). - Serène, 1984 : 87 (Réunion dans le matériel examiné, baie de St Paul, casiers, 420 m, coll. P. Guézé, 1/3/1973, MNHN B6525). - Monodaeus aff. tuberculidens - Guinot & Macpherson, 1988: 737, Réunion (same spp. as Crosnier and Serène). - Lai et al., 2011: 413, table 1, Zoologischer Anzeiger - Réunion, MNHN B16164.
Monodaeus aff tuberculidens - Lai et al., 2011, tab. 1, Réunion Island, MNHN B16164

References : PDF list, 214 pp (1.4 Mo)

This species in Worms Database