Type Material

            Holotype: “Male holotype from Carlsbad, New Mexico, July 26, 1938 (Bjorkman), in the American Museum of Natural History” (Muma, 1951, p. 69).

            Measurements: Males: Total Length, 19.0 to 30.0 mm. Chelicerae, 5.2–8.0 mm length; 2.6-4.0 mm width. Propeltidium, 2.5-3.9 mm length; 4.2-6.6 mm width. Palpi, 14.0-22.0 mm. 1^st Legs, 12.0-18.0 mm. 4^th Legs, 20.0-30.0 mm. 

            Ctenidia Description: “two, short, flattened ctenidia on the first post-spiracular abdominal sternite” (Muma, 1951, p. 69).

            Chelicerae Description: “Structure similar to that of palpisetulosus except the movable finger in lateral view exhibits no anterior tooth and only one intermediate tooth that arises on the distal margin of the principal tooth. In dorsal view traces of the apparently missing teeth can be seen. This species also differs in having the fondal notch little more than half as wide as the base of the fixed finger, the ectal row of fondal teeth graded I, III, II, IV” (Muma, 1951, p. 69).

Diagnosis:

Other Information: “A study of the illustration and description of Eremognatha guenini Roewer indicates these species are closely related. This species can be separated from guenini by the possession of two ctenidia on the first post-spiracular abdominal sternite. Roewer also does not report a mesoventral groove of the fixed finger for guenini” (Muma, 1951, p. 70).