Genus-level revision of the Alycaeidae (Gastropoda, Cyclophoroidea), with an annotated species catalogue

摘要: 412 species-group names (including 11 replacement names), and 14 genus-group of the Alycaeidae have been introduced to date. Type materials 85% (336) known species subspecies were examined, a further 5% (19) taxa studied using available non-type material, for another 6% (22) original descriptions sufficiently detailed evaluate their taxonomic status. Only 3% (12) could not be examined. Special attention was paid sculpture embryonic whorls sutural tube-microtunnel system in order provide novel classification this group. In study 363 (320 or 43 subspecies) are accepted within family Alycaeidae. Of these, 22 described by lead author his coauthors previous publications. addition, there 18 that formerly classified Cycloryx now belong Pincerna due its synonymy with Cycloryx. Among remaining 323 species, 209 (65%) transferred here genus, whilst 114 (35%) remained genus. Seven genera accepted. While some questions (e.g., distinction between Alycaeus) unanswered, revision made three main achievements: (1) The Dicharax identified based on absence spiral striation entire shell; (2) Metalycaeus protoconch; (3) Stomacosmethis separated from Alycaeus extremely short tube. Five nominal being synonymised other eight treated as subspecies. following proposed: Dioryx urnula niosiensis Pall-Gergely, nom. nov. var. daflaensis Godwin-Austen, 1914; rotundus globosus crenilabris juttingae laevis van Benthem Jutting, 1959; korintjiensis latecostatus conicus jatingaensis nanus godwinausteni neglectus finally suhajdai varius 1914.