Caenolethrus varasi (Nagel, 1932), new combination
(Figs. 5, 12)
Sclerostomus varasi Nagel 1932: 115 (description).
Pycnosiphorus varasi (Nagel) . Didier & Séguy 1953: 166 (806) (catalog); Benesh 1960: 38 (catalog); Weinreich 1958: 269, (description, misidentification of P. lessonii Buquet), 277, Fig. 5 (misidentification of P. lessonii Buquet), 277, Fig. 6 (illustration); Maes 1992: 52 (catalog, misidentification of P. lessonii Buquet); Mizunuma 2000: 3, Figs. 41–42 (misidentification of P. lessonii Buquet); Krajcik 2001: 21 (catalog, misidentification of P. lessonii Buquet); Krajcik 2003: 163 (catalog, misidentification of P. lessonii Buquet).
Sclerostomus cucullatus (Blanchard), in part, Mizunuma & Nagai 1994: Plate 117 Fig. 490-5 (misidentified illustration).
Sclerostomus varasi (Nagel) . Paulsen, 2005: 21 (neotype designated, description, key).
This species was recently treated by Paulsen (2005).