Beyşehir bleak means "heavenly fish". Beyşehir bleak The Beyşehir bleak ("Alburnus akili"), known in Turkish as gökçe balığı, was a species of freshwater fish in the family Cyprinidae, now presumed extinct. The Beyşehir bleak was endemic to Lake Beyşehir in Central Anatolia, Turkey. It declined after the introduction of "Sander lucioperca" (zander or pikeperch) into the lake in 1955, and the introduction of "A. escherichii". Overfishing also seems to have contributed to the extinction. The fish was last seen in 1998 and is now listed as extinct by the IUCN. This was a short-lived species, growing to 13–16 cm long. The Turkish
Common minke whale and George Heinsohn (1987), though a white-flippered form in the Southern Hemisphere had been noted earlier. The former described a "diminutive form" based on specimens caught off Durban, South Africa, while the latter named a "dwarf form" based on specimens and sightings from Australia. This unnamed subspecies has a prominent white flipper and shoulder blaze and a dark throat patch, whereas what was called the "dark-shouldered" or "ordinary" form of minke whale (now known as a separate species, the Antarctic minke whale, "B. bonaerensis") lacked these contrasting markings. Until recently, all minke whales were considered a single species. However, the