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Abstract:
In Europe, Asellus cavaticus Leydig until 1963 was the only species known of a phyletic line that extended from Britain to Austria. Until the works of Racovitza in 1919 all the Asellus of the underground world were reported to this species, first known subterranean Asellus. The taxonomic criteria of Racovitza allowed to determine many subspecies. Later on Chappuis refuses to give names to the different encountered forms. Taking as type forms the individuals of the grotte de Sainte-Reine (Meurthe-et-Moselle), considered very similar to the original type forms, we think to be able to define a new subspecies puteanus for the Asellus of a well in Beaujolais. This form differs from cavaticus f. typ. for the form of the male copulation organ, the male pleopod and the number of spines on the dactlya and pereiopodes. A more detailed description of the subspecies valdensis Chappuis is given based on specimens from a cave of the Plateau of Crémieu (Isère).