Two New Species of Chondrostoma Agassiz, 1832 (Teleostei: Cyprinidae) from the Ceyhan, Seyhan and Goksu Rivers in the East Mediterranean Region of Turkey

Abstract

Chondrostoma toros sp.n. was described from the Goksu River. It was distinguished by a slightly arched lower jaw with a well-developed keratinized edge; a slightly developed keel in front of the dorsal-fm origin; lateral line with 56-64+1-3 scales; and 25-30 gill-rakers on outer side of first gill arch. Chondrostoma ceyhanensis sp.n. was described from Ceyhan, Seyhan and Berdan rivers. It was distinguished by its arched lower jaw with a slightly developed keratinized edge; a slightly developed keel between pelvic-fin and anus; lateral line with 59-66+1-3 scales; and 24-29 short gill-rakers on outer side of first gill arch.