Aegla riolimayana Schmitt, 1942

Diagnosis. Anterolateral spine of carapace not reaching basis of cornea; posterior margins of areola convergent; rostrum of medium length in adult males, styliform, carinate along its entire length; front wide, anterior angle of ventral margin of epimera 2 with small spine; outer proximal margin of moveable finger of cheliped with rudimentary lobe; palmar crest present, subrectangular, indented, with tubercles; inner margin of ventral face of ischium of cheliped with only two tubercles; dorsal margin of merus of second pereiopod unornamented, with setae. (Modified from Bond-Buckup & Buckup 1994.)

New records. ARGENTINA: River Chimehuin, Junin de Los Andes, 39º59'17"S, 71º3'36.2"W; 776m, 26.iii.2007 (UFRGS 4407, 1M, 15F).

Former distribution. ARGENTINA: Western and southern Province of Neuquén. CHILE: Southern Province of Cautin; Provinces of Valdivia, Osorno, and Llanquihue; and Chilóe Island (Bond-Buckup & Buckup 1994; Bahamonde et al.1998).

Present distribution. ARGENTINA: Patagonian River systems in Neuquén Province. CHILE: Province of Valdivia (only in the basin of the San Pedro River - Calle Calle); Osorno: Lake Puyehue; Chilóe Island.