. Goldfish breeds and other aquarium fishes, their care and propagation : a guide to freshwater and marine aquaria, their fauna, flora and management. With 280 explanatory illustrations, printed with the text. FIG. 163. Niagara Snail, Lymnaa stagnalis. deep and the ap-erture oval. Thebody is yellQwish-grey with a green-ish tinge, spottedwith brown andthe tentacles flat,triangular andhave a backwardtrend. It is ovi-parous and the70 to 150 eggs,deposited at in-tervals in cylindrical capsules, hatch in 1 5 to 20 days. This is one of themost handsome snails, of which a pair or two may be kept in t
. Goldfish breeds and other aquarium fishes, their care and propagation : a guide to freshwater and marine aquaria, their fauna, flora and management. With 280 explanatory illustrations, printed with the text. FIG. 163. Niagara Snail, Lymnaa stagnalis. deep and the ap-erture oval. Thebody is yellQwish-grey with a green-ish tinge, spottedwith brown andthe tentacles flat,triangular andhave a backwardtrend. It is ovi-parous and the70 to 150 eggs,deposited at in-tervals in cylindrical capsules, hatch in 1 5 to 20 days. This is one of themost handsome snails, of which a pair or two may be kept in the aquariumwithout damage to the plants. Its range is over the entire northern latitudes,and in the United States is found from Vermont through the Northern tierof States to the Pacific Ocean. It is popularly known as the Niagara palustris, Fig. 164, is a destructive though interesting commonsnail found in nearly all ditches, ponds and streams in the Eastern Atlanticslope and in Europe. The conical shell is 3^ to 11Ji_ inches long, of a lighthorn-color on the bodywhorl and usually adark horn-color, brownor black above. It hasfive or six whorls sep-arated by white lines,with the bodv whorlhalf
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectaquariu, bookyear1908
