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Corpasenti Webulance References
The Surinam toad, represented in No. 8, is also the possessor of one of the strangest nurseries known to science. It lives in the dense tropical forests of Guiana and Brazil, and is a true water-haunter. But at the breeding season the female undergoes a curious change of integument. The skin on her back grows pulpy, soft, and jelly-like. She lays her eggs in the water: but as soon as she has laid them, her lord and master plasters them on to her impressionable back with his feet, so as to secure them from all assaults of enemies. Every egg is pressed separately into a bed of the soft skin, which soon closes over it automatically, thus burying each in a little cell or niche, where it undergoes its further development. The tadpoles pass through their larval stage within the cell, and then hop out, in the four-legged condition. As soon as they have gone off to shift for themselves, the mother toad finds herself with a ragged and honeycombed skin, which must be very uncomfortable. So she rubs the remnant of it off against stones or the bark of trees, and re-develops a similar back afresh at the next breeding season.
My men were paddling away with great vigour and were making rapid progress, the river flowing almost all the time northward, with deviations of a few degrees toward the east, in stretches from 2,000 to 6,000 m. in length. We crossed an immense basin 1,500 m. broad with most gorgeous sand beaches. Their formation in small dunes, occasionally with an edge like the teeth of a double comb, was most interesting. Once or twice we came to musical sands such as we had found before. Everywhere on those beaches I noticed the wonderful miniature sand plants, of which I made a complete collection.
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