Diagnosis Shell small, broadly fusiform, usually weakly sculptured. Protoconch paucispiral, predominantly dome-shaped spire whorls weakly to notably convex, unsculptured, or with orthocline ribs. Last whorl evenly convex, unsculptured, with convex base, Aperture wide, very shallowly notched anteriorly. lacking parietal callous tubercle; inner lip with four columellar folds. Rachula with broad, bow-shaped multicuspidate rachidian. Species included. Cernohorskyola analogica (Reeve, 1845)³ comb. nov.; C. grovei (Marrow & R Salisbury, 2019)' comb. nov.; C. scita (Tenison Woods, 1876) comb. nov.; C. volucra (Hedley, 1915) 1 comb. nov. Etymology The genus is named after the late prominent New Zealand malacologist Dr. Walter Cemohorsky, who contributed immensely to our knowledge of Indo-Pacific mollusks, especially mitriforms. Distribution and habitat Temperate waters around Australia, intertidal and upper subtidal depths.
Remarks Based on the results of our phylogenetic analysis, the Austromitra analogica (Reeve, 1845) species flock is here reassigned to a genus of its own, Cernohorskolan. gen. However, the core of this group sharing the key shell features of C. analogica (i.e. weakly sculptured shells with nearly smooth last whorl) is only a fraction of the Australian species diversity previously referred to Austromitra. Only one species morphologically notably divergent from the C. analogica group, MNHN-IM-2013-40667 from South West Australia, was included in our analysis, and it proved unrelated to the cluster established herein as Cernohorskyola n. gen. It is therefore becoming apparent that a critical reassessment of Austromitra sl. species based on an integrative taxonomy approach is required to better understand the relationships of Australian costellariid fauna. The result of such a revision will be important to provide a more accurate circumscription of Cernohorskyola n. gen. in the future.