type Cyrtocephalus walckenaeri Lucas, 1846; gender neuter

N.B.: removed from the synonymy of Cyrtauchenius Thorell, 1869 by Decae & Bosmans, 2014: 187, contra Raven, 1985a: 128; may belong to the Nemesiidae per Decae & Bosmans, 2014: 186; transferred from the Cyrtaucheniidae to the Nemesiidae by Opatova et al., 2020: 700.

In synonymy:
Amblyocarenum simile (L. Koch, 1871) = Amblyocarenum walckenaeri (Lucas, 1846) (Blasco-Feliu, 1985b: 507, contra Buchli, 1966: 11, sub Cyrtauchenius).

Nomen dubium:
Amblyocarenum siculum (Latreille, 1831: 509, m, Italy/Sicily, originally in Cteniza) -- Reimoser, 1919: 6.

Cyrtauchenius doleschallii Ausserer, 1871a: 162 (Dmf).
Amblyocarenum doleschalli Reimoser, 1919: 6.

Amblyocarenum nuragicus Decae, Colombo & Manunza, 2014: 236, f. 3H-I, 4C, 6A, 7A, 8-9, 10A-B (Dmf).

Cyrtauchenius obscurus Ausserer, 1871a: 163 (Df).
Amblyocarenum obscurum Reimoser, 1919: 6.

Cyrtocephalus mauritanicus Lucas, 1845a: 58 (nomen nudum).
Cyrtocephalus walckenaerii Lucas, 1846: 94, pl. 1, f. 3 (Df).
Cyrtauchenius walckenaeri Thorell, 1870b: 164.
Cyrtauchenius similis L. Koch, in Ausserer, 1871a: 164 (Df) [urn:lsid:nmbe.ch:spidersp:059490].
Amblyocarenum walckenaeri Simon, 1892a: 106, f. 105.
Amblyocarenum walckenaeri Frade & Bacelar, 1931a: 126, f. 1-4 (Dm).
Amblyocarenum walckenaeri Buchli, 1966: 11, f. 1-10, 21-27 (mf).
Amblyocarenum simile Buchli, 1966: 11, f. 11-20, 28-33 (mf).
Amblyocarenum simile Haupt, 1983: 276, f. 1e (m).
Amblyocarenum walckenaeri Blasco-Feliu, 1985b: 507, f. 1-2 (mf, S of Amblyocarenum simile).
Cyrtauchenius walckenaeri Le Peru, 2011: 67, f. 27 (mf).