The Naturalist on the River Amazons [93]
by rounded masses of fresh-water sponges, whose long horny spiculae and dingy colours give them the appearance of hedgehogs.
Dense bushes of a harsh, cutting grass, called Tiririca, form almost the only fresh vegetation in the dry season. Perhaps the dense shade, the long period during which the land remains under water, and the excessively rapid desiccation when the waters retire, all contribute to the barrenness of these Ygapos. The higher and drier land is everywhere sandy, and tall coarse grasses line the borders of the broad alleys which have been cut through the second-growth woods. These places swarm with carapatos, ugly ticks belonging to the genus Ixodes, which mount to the tips of blades of grass, and attach themselves to the clothes of passers-by. They are a great annoyance. It occupied me a full hour daily to pick them off my flesh after my diurnal ramble. There are two species; both are much flattened in shape, have four pairs of legs, a thick short proboscis and a horny integument. Their habit is to attach themselves to the skin by plunging their proboscides into it, and then suck the blood until their flat bodies are distended into a globular form. The whole proceeding, however, is very slow, and it takes them several days to pump their fill. No pain or itching is felt, but serious sores are caused if care is not taken in removing them, as the proboscis is liable to break off and remain in the wound. A little tobacco juice is generally applied to make them loosen their hold. They do not cling firmly to the skin by their legs, although each of these has a pair of sharp and fine claws connected with the tips of the member by means of a flexible pedicle. When they mount to the summits of slender blades of grass, or the tips of leaves, they hold on by their forelegs only, the other three pairs being stretched out so as to fasten onto any animal which comes their way. The smaller of the two species is of a yellowish colour; it is the most abundant, and sometimes falls upon one by scores. When distended, it is about the size of a No. 8 shot; the larger kind, which fortunately comes only singly to the work, swells to the size of a pea.
In some parts of the interior, the soil is composed of very coarse sand and small fragments of quartz; in these places no trees grow. I visited, in company with the priest, Padre Torquato, one of these treeless spaces or campos, as they are called, situated five miles from the village. The road thither led through a varied and beautiful forest, containing many gigantic trees. I missed the Assai, Mirti, Paxiuba, and other palms which are all found only on rich moist soils, but the noble Bacaba was not uncommon, and there was a great diversity of dwarf species of Maraja palms (Bactris), one of which, called the Peuririma, was very elegant, growing to a height of twelve or fifteen feet, with a stem no thicker than a man's finger. On arriving at the campo, all this beautiful forest abruptly ceased, and we saw before us an oval tract of land three or four miles in circumference, destitute even of the smallest bush. The only vegetation was a crop of coarse hairy grass growing in patches. The forest formed a hedge all round the isolated field, and its borders were composed in great part of trees which do not grow in the dense virgin forest, such as a great variety of bushy Melastomas, low Byrsomina trees, myrtles, and Lacre-trees, whose berries exude globules of wax resembling gamboge. On the margins of the campo wild pineapples also grew in great quantity. The fruit was of the same shape as our cultivated kind, but much smaller, the size being that of a moderately large apple. We gathered several quite ripe ones; they were pleasant to the taste, of the true pineapple flavour, but had an abundance of fully developed seeds, and only a small quantity of eatable pulp. There was no path beyond this campo; in fact, all beyond is terra incognita to the inhabitants of Villa Nova.
The only interesting Mammalian animal which I saw at Villa Nova was a monkey of a species new to me; it was
Dense bushes of a harsh, cutting grass, called Tiririca, form almost the only fresh vegetation in the dry season. Perhaps the dense shade, the long period during which the land remains under water, and the excessively rapid desiccation when the waters retire, all contribute to the barrenness of these Ygapos. The higher and drier land is everywhere sandy, and tall coarse grasses line the borders of the broad alleys which have been cut through the second-growth woods. These places swarm with carapatos, ugly ticks belonging to the genus Ixodes, which mount to the tips of blades of grass, and attach themselves to the clothes of passers-by. They are a great annoyance. It occupied me a full hour daily to pick them off my flesh after my diurnal ramble. There are two species; both are much flattened in shape, have four pairs of legs, a thick short proboscis and a horny integument. Their habit is to attach themselves to the skin by plunging their proboscides into it, and then suck the blood until their flat bodies are distended into a globular form. The whole proceeding, however, is very slow, and it takes them several days to pump their fill. No pain or itching is felt, but serious sores are caused if care is not taken in removing them, as the proboscis is liable to break off and remain in the wound. A little tobacco juice is generally applied to make them loosen their hold. They do not cling firmly to the skin by their legs, although each of these has a pair of sharp and fine claws connected with the tips of the member by means of a flexible pedicle. When they mount to the summits of slender blades of grass, or the tips of leaves, they hold on by their forelegs only, the other three pairs being stretched out so as to fasten onto any animal which comes their way. The smaller of the two species is of a yellowish colour; it is the most abundant, and sometimes falls upon one by scores. When distended, it is about the size of a No. 8 shot; the larger kind, which fortunately comes only singly to the work, swells to the size of a pea.
In some parts of the interior, the soil is composed of very coarse sand and small fragments of quartz; in these places no trees grow. I visited, in company with the priest, Padre Torquato, one of these treeless spaces or campos, as they are called, situated five miles from the village. The road thither led through a varied and beautiful forest, containing many gigantic trees. I missed the Assai, Mirti, Paxiuba, and other palms which are all found only on rich moist soils, but the noble Bacaba was not uncommon, and there was a great diversity of dwarf species of Maraja palms (Bactris), one of which, called the Peuririma, was very elegant, growing to a height of twelve or fifteen feet, with a stem no thicker than a man's finger. On arriving at the campo, all this beautiful forest abruptly ceased, and we saw before us an oval tract of land three or four miles in circumference, destitute even of the smallest bush. The only vegetation was a crop of coarse hairy grass growing in patches. The forest formed a hedge all round the isolated field, and its borders were composed in great part of trees which do not grow in the dense virgin forest, such as a great variety of bushy Melastomas, low Byrsomina trees, myrtles, and Lacre-trees, whose berries exude globules of wax resembling gamboge. On the margins of the campo wild pineapples also grew in great quantity. The fruit was of the same shape as our cultivated kind, but much smaller, the size being that of a moderately large apple. We gathered several quite ripe ones; they were pleasant to the taste, of the true pineapple flavour, but had an abundance of fully developed seeds, and only a small quantity of eatable pulp. There was no path beyond this campo; in fact, all beyond is terra incognita to the inhabitants of Villa Nova.
The only interesting Mammalian animal which I saw at Villa Nova was a monkey of a species new to me; it was