Fresh-Water Aquaria; Their Construction, Arrangement, and Management, with Full Information as to the Best Water-Plants and Live Stock to Be Kept, How and Where to Obtain Them, and How to Keep Them in Health

Fresh-Water Aquaria; Their Construction, Arrangement, and Management, with Full Information as to the Best Water-Plants and Live Stock to Be Kept, How and Where to Obtain Them, and How to Keep Them in Health

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1904 edition. Excerpt: ...cleans every spot upon which she deposits an egg. The fry are hatched, according to the temperature of the water, in from twenty to twenty-five days, and do not reach maturity until they are about two years old. The body of the animal is almost black, and spotted with yellow. The tentacles are filiform (thread-like), and diverge considerably; both tentacles of the male, unlike the genus just described, are of the same size. The eyes are black, large, and sessile. The shell is conical, and of a yellowish horn-colour and glossy. There are five whorls, the last taking up more than half of the shell. The sutures are rather deep, and the apex is pointed. The operculum is thick and oval. This is a useful little snail in the aquarium, often feeding upon decaying vegetation, and not unwilling at times to partake of a little animal food. From the name Bythinia Fl-135' -"-"" Tentaculata. one would imagine that the members of this genus always dwell in deep water; but this is not the case by any means, for they are frequently found in shallow streams, small ponds, canals, and ditches. Valvata pisdnalis is a little mollusc, whose name signifies that it possesses an operculum and lives in fish-ponds: it should not be introduced into an aquarium which is rather wanting in growing plants, for it will feed chiefly upon them. It is an interesting animal and well worthy of a place in a tank which is rich enough in vegetation to supply it with food without suffering in consequence. The respiratory organs of this snail are curious: it possesses a branchial plume and a branchial thread. The former consists of gills which somewhat resemble feathers, and which extend beyond the edge of the mantle when the animal is in motion. The latter is a...show more

Product details

  • Paperback | 112 pages
  • 189 x 246 x 6mm | 213g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236617959
  • 9781236617958