Seminemacheilus lendlii ( Hankó 1925 )

Yoğurtçuoğlu, Baran, Kaya, Cüneyt, Geiger, Matthias F. & Freyhof, Jörg, 2020, Revision of the genus Seminemacheilus, with the description of three new species (Teleostei: Nemacheilidae), Zootaxa 4802 (3), pp. 477-501 : 481-484

Seminemacheilus lendlii ( Hankó 1925)

( Figs. 3–4 )

Nemachilus lendlii Hankó, 1925:155 , Pl. 3 ( Fig. 9 ) (type locality Eski-Chehir , Turkey).

Material examined. FFR 1369, 1, 49 mm SL; Turkey: Afyon prov.: Creek Kali 10 km west to Çay , 38.5998, 30.8938.—FFR 15570 , 3, 51–66 mm SL; FSJF 4097 , 3 , 47–77 mm SL; Turkey: Kütahya prov.: stream Eymir at Eymir , 39.1521, 30.0404 .— FSJF 3123 , 10 , 46–60 mm SL; Turkey: Akşehir prov.: spring at Ulupınar, 10 km north- west of Akşehir , 38.4383, 31.3308 .

Material used in molecular genetic analysis. FSJF DNA-1665 ; Turkey: Akşehir prov.: spring at Ulupınar village, 10 km northwest of Akşehir , 38.4383, 31.3308. (GenBank accession numbers: KJ554864 , KJ554898 ) .— FSJF DNA-3110 ; Turkey: Kütahya prov.: stream Eymir at Eymir , 39.1521, 30.0404. (GenBank accession numbers: MT 077005 - MT 077009 ) .

Additional distribution records: Yeğen et al. 2007: 39.0819, 30.4302; Mangıt et al. 2017: 38.6301, 31.1048.

Diagnosis. Seminemacheilus lendlii is distinguished from all other species of Seminemacheilus by having a truncate caudal fin, a fine mottled flank pattern, preserved individuals with a wide, dark-brown inner axial stripe and a narrower epidermal stripe, no central pore in the supratemporal canal, and a deep caudal peduncle (caudalpeduncle depth 1.1–1.2 times in caudal-peduncle length) and head length 25–28% SL.

Distribution. Locally known from the Porsuk, a tributary of the upper Sakarya River as well as from the endorheic Lakes Akşehir and Eber basins. Bănărescu & Nalbant (1964) also recorded S. lendlii from Lake Çavuşçu (Ilgın-Konya) and Lake Eymir-Mogan basins (Ankara), from where the species seems to have disappeared, as it has never been recorded thereafter.

Remarks. Hankó (1925) described Nemachilus lendlii from Eski-Chehir (today Eskişehir) in the Sakarya River drainage in Western Anatolia. Hankó did not collect the specimens himself, but the Hungarian National Museum bought the material from A. Lendl in 1907, who collected the fish in 1906 ( Hankó, 1925). A part of the series was given also to F. Steindachner (NMW), but had obviously already been lost in 1925 ( Hankó, 1925). All materials ex- amined by Hankó (1925) have since been lost, including the 10 syntypes of N. lendlii . Nevertheless, Hankó clearly had a species of Seminemacheilus in hand when he described N. lendlii , as the individual illustrated in Plate 3 ( Fig. 9 ) clearly show the diagnostic truncate caudal fin and very long pectoral fin of male Seminemacheilus . Eskişehir is situated within the western Sakarya catchment, but despite of intensive field work, the species has not been found by us around Eskişehir or elsewhere in the Sakarya River drainage. Only recently, we found one population of Seminemacheilus at Eymir, 80 km south-west of Eskişehir. Eymir is situated at one of the headwater streams of the Porsuk River, which also flows through Eskişehir, being a major tributary of the Sakarya. While the description by Hankó (1925) is clearly based on a species of Seminemacheilus , he does not give the characters needed to confirm the identification of the Seminemacheilus from Eymir as S. lendlii , distinct from the other species discussed below. However, we see no reason to believe that more than one species of Seminemacheilus is found in the Porsuk River drainage and therefore identify the fish from Eymir as S. lendlii .

Figures

FIGURE 3. Seminemacheilus lendlii, from top: FFR 1369, male, 50 mm SL; Lake Eber; FFR 15570, female, 53 mm SL; stream Eymir.

FIGURE 4. Seminemacheilus lendlii, left from top: FFR 15570, female, 68 mm SL; male, 53 mm SL; stream Eymir; right from top: FSJF 3123, female, 58 mm SL; male, 48 mm SL; spring at Ulupınar.

FIGURE 9. Seminemacheilus attalicus, holotype, FFR 15566, male, 69.5 mm SL; spring Kırkgöz.