FIGURE 7 in Ponticola hircaniaensis sp. nov., a new and critically endangered gobiid species (Teleostei: Gobiidae) from the southern Caspian Sea basin

FIGURE 7. Otolith morphology (sagittae, inner face) of the studied Ponticola spp. (a–d) Ponticola hircaniaensis sp. nov.: ZM-CBSU K18, K21, K24, and K28, respectively (64.0–74.6 mm SL). (e–h) Ponticola iranicus: ZM-CBSU 37, 40, 141, and 144, respectively (71.6–76.4 mm SL). (i–l) Ponticola patimari: ZM-CBSU P2, P3, P4, and P6, respectively (53.9–65.2 mm SL). (m–p) Ponticola gorlap: ZM-CBSU 44, 45, 46, and 48, respectively (71.6–86.5 mm SL). (q–r) Ponticola iljini: ZMMSU P-23516 (90–95 mm SL) (refigured from Vasil'eva et al. 2016). (s–t) Ponticola kessleri: non-cataloged specimens from the RBINS collection (77–92 mm SL) (refigured from Jacobs & Hoedemakers 2013). (u–v) Ponticola syrman: ZM-CBSU 77, and 78, respectively (128.1–181.4 mm SL).