=The Scorpididæ.=—This family has the general appearance of _Platax_ and _Ilarches_, but the teeth are not brush-like, and the post-temporal is free from the skull as in perch-like fishes. The species inhabit the Pacific. _Scorpis georgianus_ is a food-fish of Australia, with the body oblong. _Monodactylus argenteus_, the toto of Samoa, is almost orbicular in form, while _Psettus sebæ_ is twice as deep as long, the deepest-bodied of all fishes in proportion to its length. =The Boarfishes: Antigoniidæ.=—The boarfishes (_Antigoniidæ_) are characterized by a very deep body covered with rough scales, the post-temporal, as in the _Chætodontidæ_ and the _Zeidæ_, being adnate to the skull. [Illustration: FIG. 336.—_Psettus sebæ_ Cuv. & Val. East Indies. ] These fishes bear some resemblance to _Zeus_, but there is no evidence of close affinity nor is it clear that they are related to the _Chætodontidæ_. _Capros aper_, the boarfish, is common in southern Europe, reaching a length of less than a foot, the protractile mouth suggesting that of a pig. The diamond-fishes, _Antigonia_, are deeper than long and strongly compressed, the body being covered with roughish scales. The color is salmon-red and the species live just below the depths ordinarily explored by fishermen. _Antigonia capros_ is found at Madeira and in the West Indies, _Antigonia steindachneri_ about Hawaii and in Japan, while the smaller _Antigonia rubescens_ is abundant in the Japanese bays at a depth reached by the dredge. An extinct genus, _Proantigonia_ from the Miocene is said to connect _Antigonia_ with _Capros_. =The Arches: Toxotidæ.=—The archers, _Toxotidæ_, have the body compressed, the snout produced, and the dorsal fin with but five spines. The skeleton differs widely from that of _Chætodon_ and the family should perhaps rather find its place among the percoids. _Toxotes jaculatrix_ is found in the East Indies. The name alludes to its supposed habit of catching insects by shooting drops of water at them through its long mouth. =The Ephippidæ.=—With the typical _Squamipinnes_, the teeth become very slender, crowded in brush-like bands. The least specialized family is that of _Ephippidæ_, characterized by the presence of four anal spines and a recumbent spine before the dorsal. The principal genus, _Ephippus_ (_Scatophagus_), is represented by _Ephippus argus_, a small, bass-like fish, spotted with black, found in the Indian seas, and ranging northward to Formosa. Species referred to _Ephippus_ (_Scatophagus_) are recorded from the Italian Eocene of Monte Bolca, where a species of _Toxotes_ has been also found.