Order Scorpaeniformes, the "Mail-Cheeked Fishes", 25 families, about 166 genera, 1,271 species. There are " a bunch " of "scorpionfishes" to put it mildly. All have large heads, most with large eyes and mouths to match... for the most part sedentary to slow moving, stalking fishes... many are venomous... with hollow dorsal fin spines that can inject (with mechanical pressure) powerful proteinaceous toxin... These stings HURT! Mechanically and chemically. Here we'll list just the commonly encountered shallow marine species in our area of Indonesia.

    Suborder Dactylopteroidei, Family Dactylopteridae, the Flying Gurnards. Two genera, about 7 species, three in Indonesia.

    Suborder Scorpaenoidei. Contains world's most venomous fishes. Seven families, about 96 genera, 544 species.

        Family Scorpaenidae, the Scorpionfishes and Rockfishes. 56 plus genera and 388 species.

            Subfamily Sebastinae, the Rockfishes. Important foodfishes. Four genera, about 128 species.

            Subfamily Scorpaeninae, various Scorpionfishes. 15 plus genera with more than 150 species.

            Subfamily Sebastolobinae. Three genera of five species.

            Subfamily Plectrogeninae. One genus, two species.

            Subfamily Pteroinae. The Lionfishes and Turkeyfishes discussed here

            Subfamily Setarchinae. Three genera, five species.

            Subfamily Neosebastinae. Two genera, twelve species.

            Subfamily Apistinae. Three monotypic genera.

            Subfamily Tetraroginae, Sailback Scorpionfishes or Wasp Fishes. 11 plus genera and 35 species.

            Subfamily Minoinae. One genus, 11 species.

            Subfamily Choridactylinae (Inimicinae). Two genera, ten species.

            Subfamily Synanceinae, the Stonefishes proper. Six genera, ten species.

    Family Caracanthidae, Orbicular Velvetfishes. One genus, four species. All marine, found in the Indian and Pacific Oceans. To 7 cm.

    Family Aploactinidae, the Velvetfishes. Approximately 17 genera and 37 species.

    Family Pataecidae, Australian Prowfishes. Three genera and nine species.

    Family Gnathacanthidae, the Red Velvetfish. One species.

    Family Congiopodidae, the (bizarre) Racehorses, aka Pigfishes, Horsefishes. Four genera, 9 species.

    Family Triglidae, the Searobins or Gurnards. Divided into two subfamilies and three Tribes. 

Suborder Platycephaloidei, Crocodilefishes, Flatheads. Three families, 23 genera, about 75 species.

    Family Bembridae, the Deepwater Flatheads. Four genera, five species.

    Family Platycephalidae, Crocodilefishes or Flatheads. 18 genera of about 60 species.

    Family Hoplichthyidae, the Ghost Flatheads. One genus, ten species

And more I/we'll eventually list and go over like the sculpins/cottids, agonids/poachers, hexagrammids/greenlings... but not today.