Gobius key, Smith, 1947

Kovačić, Marcelo, Ordines, Francesc & Schliewen, Ulrich K., 2018, A new species of Buenia (Perciformes: Gobiidae) from the western Mediterranean slope bottoms, the redescription of Buenia jeffreysi and the first Balearic record of Buenia affinis, Zootaxa 4392 (2), pp. 267-288 : 269-270

Key to the species of Buenia

1a. A I/9, TR 7, suborbital sensory papillae row c 7–8.................................................... B. jeffreysii

1b. A I/6–8, TR 5–6, suborbital sensory papillae row c 5–6........................................................ 2

2a. Eye equal or less than 30.3% of head length, V anterior membrane in midline 1/3–1/2 length of spinous ray; male D1 spine II not elongate and filamentous...................................................................... B. affinis

2b. Eye equal or more than 32.8% of head length, V anterior membrane in midline reduced to less than 1/6 of spinous ray; male D1 with spine II elongate and filamentous..................................................................... 3

3a. P 16, posterior oculoscapular canal absent, body with four vertical midline stripes visible at lateral midline and fifth longer vertical mark as margin between caudal peduncle and fin................................................. B. massutii

3b. P 18, posterior oculoscapular canal present at least as open furrow, body with only three small marks visible at lateral midline and no dark pigment between caudal peduncle and fin........................................ B. lombartei sp. nov.