. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. PARENTAL CARE AMONG FRESH-WATER FISHES. 529 they do in the case of other Hshes and that the I'aniily in which they are (•ond)ined is a natural one. So far as the ventrals are involved, the gourami is one of the intermediate types, having all the rays but the outer filamentary one much al)breviated. Each of the genera whose ovipositing habits are known has its own special method for the elaboration of the nest. The simplest of these nests is
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. PARENTAL CARE AMONG FRESH-WATER FISHES. 529 they do in the case of other Hshes and that the I'aniily in which they are (•ond)ined is a natural one. So far as the ventrals are involved, the gourami is one of the intermediate types, having all the rays but the outer filamentary one much al)breviated. Each of the genera whose ovipositing habits are known has its own special method for the elaboration of the nest. The simplest of these nests is that formed l)y the Trichogaster fasciatus,' next to it is that of the fish of paradise {Macropodus viridi-am-'atus). That of the gourami is the most complex. A notice of the first can alone be given here. THE RAINBOW FISH. The Trichogaster fasciatus (generally named Col'isu culgaris in the ]3opular accounts of it) has a Avide range in the waters of India. The ground color is greenish above, light beloAv, and fourteen or more oblique orange bands traverse the sides, but besides these are brilliant colors which have gained for the fish the English name rainbow fish and the French equiv- alent poisson arc-en-ciel. It sometimes grows to a length of about 5 inches, but those of an inch and a half are the most common. The first and best account of its nesting was given by Paul Carbonnier in 1875. Here is a translation which was originally published in the Annals and Magazine of Natural History for February. KSTC). The next year (187(5) the author's son, Pierre Carbonnier. gave later observations in the Bulletin de la Societe d'Acclimatation (p. 11-21). The i-ainbow fish is met with, in the tanlvs and ditches of the country watered by the Ganges. Its length never exceeds 4 centimeters. It is one of tlie prettiest of known fishes. One is agreeably surprised with the exuberance of colour that nature has bestowed upon this little animal: but its most unportaut peculiarity, from a sci
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