Ponticola ratan (Nordmann, 1840)

Jouladeh-Roudbar, Arash, Ghanavi, Hamid Reza & Doadrio, Ignacio, 2020, Fig. 4 in Fig. 4 in Fig. 3 in Fig. 21. Sesarmops mora n in Paralbunea dayriti, Zoological Studies 59 (21), pp. 1-303 : 244

Ponticola ratan (Nordmann, 1840) – Native

Gobius ratan Nordmann [A. von] 1840: 416; Type locality: Odessa, Ukraine. Syntypes: MNHN A–1125 (2), ZMB 2098 (1?).

Gobius bogdanowi Kessler [K. F.] 1874: 267 [77]; Type locality: Caspian Sea at Makhachkala [Petrovsk], Russia. Syntypes: (2) ZIN 10902 (1).

Common name: Pr: Gav mahi Ratan, En : Ratan goby.

Diagnosis: Distinguished by lateral lobes of pelvic anterior membrane are small, not more than 20% width of rear edge, head laterally depressed and its depth slightly greater than width, cheeks flat, upper lip thin and its width from 40–70% lateral preorbital width.

Meristic characters: D 1: VI–VII (VI), D 2: I 15–19, A: I 11–15, P: 17–21, LS: 49–70, TV: 32–34.

Distribution: Caspian Sea basin ( Fig. 449). Reported from the southeast, the southwest and the south central of Caspian Sea.

Taxonomy: Berg (1949) placed in Neogobius, Neilson and Stepien (2009) transferred to Ponticola .

Conservation: IUCN: Not Evaluated, PC: Data Deficient. There are not enough data on this species to accurately evaluate its conservation status.