Decapoda - Brachyura - Sesarmidae - Nanosesarma

Nanosesarma jousseaumei (Nobili, 1905)

World Distribution
Naderloo (2011) - Western Indian Ocean: Madagascar, Tanzania, Gulf of Aden, Djibouti, Persian Gulf. Include now Mayotte.

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

Vertical range : Shallow-waters (0-100 m) - Min-Max observed: 0-5 m

Mayotte data
Nanosesarma jousseaumei (Nobili, 1905)
Material examined — Mayotte KUW 2009, Mayotte, st. 10, Islet east 'Quatre frères, Vatou', intertidal, 1 M 3.1 x 3.6 mm, 1 F 3.75 x 4.5 mm, MNHN-IU-2009-2664, . Specimens from Madagascar (Crosnier, 1965) and eastern Africa (Vannini & Valmori, 1981) attributed to N. minutum are corrected into N. jousseaumei by Naderloo (2011: 22).
Remarks — These specimens are not included in Bouchard et al. (2013) with the other Sesarmidae collected during Mayotte KUW 2009. They were retreived after submission, mixed in a jar with several others un-determined small crabs. In a first step, by using Crosnier (1965) key and diagnose, but without comparison they were identified as Nanosesarma ?minutum (De Man, 1887) and are registered as such in MNHN collection. Crosnier (1965) has attributed his own specimens from Madagascar to 'Nanosesarma cf. minutum (De Man)' because of several differences with De Man' species. Holthuis (1977) has suggested that Crosnier' specimens from Madagascar might be Nanosesarma jousseaumei Nobili (1906), described from the Red Sea. In Somalia, Vannini & Valmori (1981) have attributed a few specimens to N. minutum but they mention that N. jousseaumei could be also retained, their specimens being in agreement with both descriptions. More recently Naderloo (2011) has corrected Crosnier (1985) and Vannini & Valmori (1981) records of N. (?)minutum into N. jousseaumei. Naderloo (pers. Com. 23/02/2012) after examining the photographs of our Mayotte KUW specimens available in Legall & Poupin (2018) has indicated that they 'are highly similar to my specimens from the Persian Gulf' and suggested that they must belong to N. jousseaumei, common in WIO.
Geographic and depth ranges — WIO, Gulf of Aden, Djibouti, Persian Gulf, Tanzania to Mayotte (this work), Madagascar; intertidal, supratidal.

Comment(s) on data
dét. Poupin juillet et septembre 2011 (N. minutum), re-det. Poupin/Naderloo février 2012 (N. jousseaumei)

References : PDF list, 214 pp (1.4 Mo)

This species in Worms Database