 This sense is, however, evidently very acute, for at any noise they turn suddenly downward, and hide beneath stones, etc., on the bottom. They must take much of their food near the surface, as the life of the depths is apparently very sparse. This habit...  Nature - Strona 242pod redakcją - 1872Pełny widok - Informacje o książce
 | 1872 - Liczba stron: 828
...is apparently very sparse. This habit is rendered easy by the structure of the fish, for the month is directed upwards, and the head is very flat above,...was the right ovary that was developed, and this, as in the figure (Plate 2, fig. le), was by the side of the stomach and did not extend beyond it. The... | |
 | 1872 - Liczba stron: 830
...sparse. This habit is rendered easy by the structure of the fish, for the mouth is directed partly upwards, and the head is very flat above, thus allowing the mouth to be at the surface. It thus takes food with less difficulty than other surface feeders, as the perch, etc., where the mouth... | |
 | Alpheus Spring Packard, Frederic Ward Putnam - 1872 - Liczba stron: 84
...evidently very acute, for at any noise they turn suddenly downward, and hide beneath stones, etc., on the bottom. They must take much of their food near...was the right ovary that was developed, and this, as in the figure (Plate 2, fig. Ic), was by the side of the stomach and did not extend beyond it. The... | |
 | 1872 - Liczba stron: 832
...habit is rendered easy by the structure of tin- fish, for the mouth is directed upwards, and the.Lend is very flat above, thus allowing the mouth to be...viviparous Cyprinodontes. In three female specimens of Arablyopsis which I have opened, the ovary was distended with large eggs, but no signs of the embryo... | |
 | 1872 - Liczba stron: 824
...sparse. This habit is rendered easy by the structure of the fish, for the mouth is directed partly upwards, and the head is very flat above, thus allowing the mouth to be at the surface. It thus takes food with less difficulty than other surface feeders, as the perch, etc., where the mouth... | |
 | Indiana. State Board of Agriculture - 1872 - Liczba stron: 952
...sparse. This habit is rendered easy by the structure of the fish, for the month is directed partly upwards, and the head is very flat above, thus allowing the mouth to be at the surface. It thus i. KG.- food with less difficulty than other surface feeders, as the perch, etc., where the... | |
 | Indiana. Dept. of Geology and Natural Resources - 1872 - Liczba stron: 524
...sparse. This habit is rendered easy by the structure of the fish, for the mou'th is directed partly upwards, and the head is very flat above, thus allowing the mouth to be at the surface, it thus takes food with less difficulty than other surface feeders, as the perch, ete., where the mouth... | |
 | Indiana. Geological Survey - 1872 - Liczba stron: 508
...sparse. This habit is rendered easy by the structure of the fish, for the mouth is directed partly upwards, and the head is very flat above, thus allowing the mouth to be at the surface. It thus takes food with less difficulty than other surface feeders, as the perch, etc., where the mouth... | |
 | E.T. Cox - 1872 - Liczba stron: 512
...sparse. This habit is rendered easy by the structure <,f the fish, for the mouth is directed partly upwards, and the head is very flat above, thus allowing the mouth to be at the Burface. It thus takes food with less difficult- tvm other surface feeders, as the perch, etc., where... | |
 | Sir Norman Lockyer - 1873 - Liczba stron: 524
...sparse. This habit is rendered easy by the structure of the fish, for the mouth is directed partly upwards, and the head is very flat above, thus allowing the mouth to be at the surface. It thus takes food with less difficulty than other surface feeders, as the perch, &c., where the mouth... | |
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