Suckermouth, Plecos and relatives Suckermouth, Plecos and relatives This section contains the species and subspecies currently documented in Suckermouth, Plecos and relatives. Loricariidae Lemon-spotted green pleco — Hemiancistrus subviridis Goldline royal pleco — Panaque armbrusteri Blue-eyed royal pleco — Panaque cochliodon Education resources › Fishes › Catfishes and relatives