Abstract
Alburnoides manyasensis, sp. n., is described from the Koca Stream (Lake Manyas drainage, Marmara Sea basin) in Anatolia. It is distinguished from all species of Alburnoides in Turkey and adjacent regions, Alburnoides tzanevi (Rezovska [Rezve], Istranca and Terkos streams in the western Black Sea drainage), Alburnoides cf. smyrnae (Banaz Stream, a drainage of Büyük Menderes River, Aegean Sea basin), Alburnoides fasciatus (streams and rivers in the eastern Black Sea drainage) and Alburnoides eichwaldii (Kura and Aras rivers [a drainage of Kura River], Caspian Sea basin) by a combination of the following characters (none unique to the species):marked hump at nape, especially in specimens larger than 60 mm SL; partly developed ventral keel between pelvic fin and anal fin, scaleless 1/2 to 2/3 its length; body depth at dorsal-fin origin 29−32% SL; caudal peduncle depth 11−12% SL; 45–52+ 2–3 lateral-line scales; 9–12 scale rows between lateral line and dorsal-fin origin; 4–5 scale rows between lateral line and anal-fin origin, 10½–12½ branched anal-fin rays; 40–42 total vertebrae.
Highlights
The genus Alburnoides is characterized by small black spots near the pores located on each side of the lateral line outlining the canal at least along its anterior portion (Bogutskaya and Coad 2009)
We compared the material from the Koca Stream in the Marmara Sea basin with Alburnoides fasciatus from streams and rivers in the eastern Black Sea basin, Alburnoides eichwaldii from Kura and Aras rivers (Kura River drainage) and Alburnoides tzanevi from Rezovska (Rezve), Istranca and Terkos streams in the western Black Sea basin
No specimens were collected from the type locality of A. bipunctatus var. smyrnae we checked it (Melel Stream, Aegean Sea basin) as well as some streams and rivers near İzmir
Summary
The genus Alburnoides is characterized by small black spots near the pores located on each side of the lateral line outlining the canal at least along its anterior portion (Bogutskaya and Coad 2009). 10 subspecies and local forms were described or reported within the Alburnoides bipunctatus complex: A. bipunctatus armeniensis Dadikyan, 1972 [Aras River, Kura River Drainage, Caspian Sea basin], A. bipunctatus eichwaldii De Filippi, 1863 [Kura River, Caspian Sea basin], A. bipunctatus rossicus Berg, 1924 [Dnieper River, Black Sea basin and Volga River, Caspian Sea basin], A. bipunctatus rossicus natio kubanicus Berg, 1932 [Kuban River, Sea of Azov basin], A. bipunctatus ohridanus Karaman, 1928 [Lake Ohrid, Adriatic Sea basin], A. bipunctatus var. A. bipunctatus rossicus, A. bipunctatus rossicus natio kubanicus, A. bipunctatus fasciatus, Alburnoides maculatus and A. bipunctatus eichwaldii were reported as a valid species by Coad and Bogutskaya (2009) and Bogutskaya and Coad (2009). The populations of Alburnoides from streams and rivers in the eastern Black sea coast of Turkey were identified as A. fasciatus, and populations from Kura as A. eichwaldii (Bogutskaya et al 2010). After comparison with the other Alburnoides species of Turkey, including Kura River (Caspian Sea basin), Menderes River (Aegen Sea basin), rivers Terkos, Istranca, Çoruh and İyidere (Black Sea basin), we concluded it is a distinct unnamed species which we describe as A. manyasensis
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