Cobitis bilseli Battalgil, 1942

Freyhof, Jörg, Bayçelebi, Esra & Geiger, Matthias, 2018, Review of the genus Cobitis in the Middle East, with the description of eight new species (Teleostei: Cobitidae), Zootaxa 4535 (1), pp. 1-75: 14

publication ID

https://doi.org/10.11646/zootaxa.4535.1.1

publication LSID

lsid:zoobank.org:pub:ABE9DB1F-7378-4571-90C4-A3FDB66527F3

persistent identifier

http://treatment.plazi.org/id/03BB0D18-1F35-FFFF-718B-FE20FC56FF6B

treatment provided by

Plazi

scientific name

Cobitis bilseli Battalgil, 1942
status

 

Cobitis bilseli Battalgil, 1942 

( Fig. 7View FIGURE 7)

Cobitis bilseli Battalgil, 1942: 292  , fig. 4 (type locality: Turkey: Lake Beyşehir).

Material examined. FSJF 1952, 5, 93–140 mm SL; Turkey: Konya prov.: stream Sarıöz at İsaköy about 9 km northeast of Beyşehir , 37.748 31.780  .— FSJF 2526, 4, 55–133 mm SL; Turkey: Konya prov.: stream Sarıçay 4 km north of Beyşehir , 37.715 31.708  .— FSJF 2624, 3, 130– 165 mm SL; Turkey: Konya prov.: outlet of Lake Beyşehir below dam in Beyşehir , 37.680 31.722  .

Material used in molecular genetic analysis. FSJF DNA-55; Turkey: Konya prov.: stream Sarıöz at İsaköy about 9 km northeast of Beyşehir , 37.748 31.780. (GenBank accession numbers: KJ 553049, KJ552872, KJ 553073)  .

Diagnosis. Male Cobitis bilseli  are distinguished from male C. battalgilae  and all other Cobitis  species known from the endorheic basins in Central Anatolia as well as from the Mediterranean Sea basin east of the Eşen River by having one lamina circularis on the pectoral fin (vs. two) and a short skin-flap before the genital papilla (vs. absent).

Distribution. Cobitis bilseli  occurs in the Lake Beyşehir basin, where it inhabits the streams Sarıöz (Eylikler) and Sarıçay north of Beyşehir (and maybe others). Cobitis bilseli  is seasonally found in the outlet of Lake Beyşehir below the dam in Beyşehir city, when the water flows over from the lake. It also occurs in the river flowing from Lake Beyşehir to Lake Suğla (Baran Yoğurtçuoğlu, pers. comm. 2017) and might be more widespread in the area.

Remarks. Cobitis bilseli  is an unusual species, not only being the largest species of the genus, reaching 195 mm SL (Erk'akan et al. 1998). It has only one lamina circularis, despite which Bohlen et al. (2006), Geiger et al. (2014) and Perdices et al. (2016, 2018) found it to be related to the species of the C. simplicispina  species group ( C. battalgilae  , C. dorademiri  , C. joergbohleni  , C. phrygica  , C. pirii  , C. simplicispina  , C. sipahilerae  , C. turcica  ) all having two laminae circularis. Erk'akan et al. (1998) pointed out that the first unbranched pectoral ray is thickened just where the other species have the second lamina circularis. In contrast to all other Cobitis  species with one lamina circularis, its lamina circularis is strongly osseous, as in others of the C. simplicispina  species group (vs. thin, scale-like) and in adult males there is a skin-flap before the genital papilla (vs. absent in other Cobitis  ). Due to these characters, Erk'akan et al. (1998) placed C. bilseli  in a separate subgenus: Beyshehiria  . They suspected C. bilseli  to be a relict lineage related to Siberian Cobitis  species. Bohlen et al. (2006), however, rejected this hypothesis and it seems more likely that C. bilseli  has evolved from an ancestor it shared with other Central Anatolian Cobitis  . Based on DNA barcoding, Cobitis bilseli  is well separated from all other included Cobitis  , and by a minimum K2P distance of 2.5% to C. pirii  , also supported as PTP entity.

Kingdom

Animalia

Phylum

Chordata

Class

Actinopterygii

Order

Cypriniformes

Family

Cobitidae

Genus

Cobitis

Loc

Cobitis bilseli Battalgil, 1942

Freyhof, Jörg, Bayçelebi, Esra & Geiger, Matthias 2018

2018
Loc

Cobitis bilseli

Battalgil 1942: 292

1942