Kiisa (Kiisk)

Eurasian Ruffe, Gymnocephalus cernuus, member of the perch family. TT puts this in the raudteejaamade-nimeliste tänavate piirkonnas or, for those who still haven’t learned the language despite its obvious simplicity, railway-station named street district (see also Kohila), so he’s not confusing it with Raudkiisk (see Ogaliku), raud meaning ‘iron’ and kiiskama to glisten or sparkle as all trains should. But, as usual, he’s right, it’s the name of a station/municipality on the Tallinn-Väike line 20-odd km to the south, so not a fish out of water.