Gasterosteus crenobiontus Băcescu & Mayer, 1956
Techirghiol stickleback

Family:  Gasterosteidae (Sticklebacks and tubesnouts)
Max. size:  6.5 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  Europe: Extinct; formerly in Lake Techirghiol (south of Constanta), Romania.
Diagnosis:  Distinguished from congeners in Europe by possessing two unique characters: 13-17 scutes on trunk, no scutes above anal base; and posterior edge of scutes smooth. Differs further by having scutes forming a lateral keel on caudal peduncle (Ref. 59043).
Biology:  Adults inhabit springs. Mature individuals spawn in February - October (Ref. 59043). Males build, guard and aerate the nest where the eggs are deposited (Ref. 205).
IUCN Red List Status: Extinct (EX); Date assessed: 01 January 2008 Ref. (130435)
Threat to humans:  harmless

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