The squirrel-fish belongs to the West Indian fauna, ranging from the Florida Keys to South America. It was first described by Osbeck, in 1771, from Ascension Island, who named it for that locality. It is not uncommon along the reefs, where I have taken it a number of times. Its body is oblong, moderately compressed, its depth about a third of its length, with the back slightly elevated, and the ventral outline nearly straight. Its mouth is small, the eye enormously large, and the caudal fin deeply forked. Its color is bright crimson, with a darker shade on the back, and a somewhat lighter tint below, with silver streaks along the sides. The fins are also red, some bordered with olive; the head is red above, with an oblique white bar running back and down from the eye. It feeds about the reefs on small fishes and marine invertebrates, and grows to two feet in length, occasionally, but is usually found smaller. It is a good food-fish and sells at sight in the market. It is a remarkably handsome and attractive fish in appearance. In one of Stockton's stories, John Gayther, the gardener, tells of the curious and beautiful things to be seen on a coral reef in the tropics, with the aid of a long box with a glass in the end. His description applies just as well to the vicinity of the Dry Tortugas, where I have often viewed the wonders of the sea-floor through a sponge-glass, a wooden pail with a glass bottom:-- "Where the water is so clear that with a little help you can see everything just as if it were out in the open air,--bushes and vines and hedges; all sorts of waving plants, all made of seaweed and coral, growing in the white sand; and instead of birds flying about among their branches, there were little fishes of every color: canary-colored fishes, fishes like robin-redbreasts, and others which you might have thought were blue jays if they had been up in the air instead of down in the water." THE TURBOT (_Balistes carolinensis_) _Balistes carolinensis._ The Turbot. The fishes comprising the family _Balistidæ_ are characterized by an ovate body, much compressed; small and low mouth, with separate incisor teeth; eye very high; gill opening a small slit; the absence of ventral fins; the dorsal fins widely separated, the first with but 1 to 3 spines. The turbot has a very deep compressed body, covered with thick, rough plates or scales; head 3-1/4; depth 1-3/4; eye small; scales about 60; about 35 scales in an oblique series from vent upward and forward; D. III, 27; A. 25; third dorsal spine stouter than the second and remote from it; plates on head similar to those on body; caudal lobes produced; soft dorsal high; ventral flaps large, supported by several pungent spines; lateral line very slender, undulating, and very crooked, showing only when scales are dry; a groove before the eye; larger plates behind the gill opening.