Grammatonotus, Gilbert, 1905

Lisher, Mark W., Thein, Htun & Psomadakis, Peter N., 2021, Grammatonotus bianchi, a new species of splendid perch (Percoidei: Callanthiidae) from Myanmar, northeastern Indian Ocean, Zootaxa 4996 (3), pp. 513-524 : 522

Key to Indian Ocean species of Grammatonotus

1a. Caudal fin with produced upper and lower lobes............................................................. 2

1b. Caudal fin without produced upper and lower lobes.......................................................... 3

2a. Predorsal-fin length 36–38% SL. Body depth 32–35% SL. Head length 37–39% SL. Caudal peduncle length 17–19% SL............................................................................ G. bianchi sp. nov. (Andaman Sea)

2b. Predorsal-fin length 32–37% SL. Body depth 28–33% SL. Head length 31–35% SL. Caudal peduncle length 21–25% SL...................................................................... Grammatonotus sp.1 (Mascarene Plateau)

3a. Predorsal-fin length 36–38% SL. Body depth 31–37% SL. Head length 32–37% SL. Caudal peduncle depth 13–17% SL............................................................................ G. lanceolatus (off Socotra Island)

3b. Predorsal-fin length 32–35% SL. Body depth 29–30% SL. Head length 29–33% SL. Caudal peduncle depth 10–13% SL.......................................................................... Grammatonotus sp. 2 ( Mozambique)