Abstract. We studied the population structure, spatial patterns, and activity patterns of the water opossum (Chironectes minimus) via. Abstract. The male genital system was examined in 9 male specimens of Chironectes minimus (2 adult and 7 young) from Brazil. Unlike other. AnAge entry for Chironectes minimus. Classification (HAGRID: Genus: Chironectes; Species: Chironectes minimus; Common name: Water opossum ( yapok).

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Share this image — Hide sharing options. Rodents of Unusual Size. Although many techniques are available to analyze how an individual uses the landscape Harris et al.

The male genital system was dissected minimys examined in all specimens. Additional data on reproductive patterns of water opossums in the wild are surely needed to corroborate this hypothesis.

Ventral view of abdomino-pelvic regions of A male and B female Chironectes minimus under dorsal recumbency and preserved in liquid medium. The mammals of Paracou, French Guiana: The efferent duct system and epididymides are enclosed in the nonpigmented tunica vaginalis Fig.

This technique consists of following the transmitter signal until visual contact with the animal tracked is achieved White and Garrott Neotropical water rats N. Observations on the distribution and ecology of the mammals of the Cerrado grasslands of central Brazil? The Floresta River also was sampled in the period between July and Octoberwith 15 traps for each trapping session.


Chironectes minimus – #2352

The morphology of the spermatic cord of C. There are sensory facial bristles in tufts above each eye as well as whiskers. The broad hindfeet are webbed and are used for propulsion through water, moving with alternate strokes. Methods for chironected and handling animals met guidelines approved by the American Society of Mammalogists Gannon et al. Table 2 summarizes the main anatomical characteristics of the glans penis of C.

Water opossum videos, photos and facts – Chironectes minimus | Arkive

Brown four-eyed opossum M. Spacing patterns of a tropical forest rodent, the spiny rat Proechimys semispinosusin Panama? Marshall, ; Marshall, ; Nowak and Wilson, Mating System polygynandrous promiscuous Like most mammals, Chironectes minimus is viviparous, with internal fertilization.

Interestingly, in the microbiotheriid Dromiciops australisblack pigmentation is seen in both chironfctes and visceral layers of the tunica vaginalis Woolley This semiaquatic creature is found in and near the freshwater streams and lakes in Mexico, Central, South America to Argentina and is the most aquatic living marsupial the lutrine opossum also has aquatic habits.

IUCN Red List of Threatened Species

Morphological description of the male genital system of the bushy-tailed opossum Glironia venusta Thomas, Didelphimorphia, Didelphidae. The animal lives in bankside burrows, emerging after dusk to swim and search for fishcrustaceans and other aquatic animals, which it eats on the bank.


Muridae in an Amazonian savanna? Then we used circular statistics to test the null hypothesis that recruitment was randomly distributed throughout the year, by applying Rayleigh’s test program ORIANA 2.

This allows them to float on the surface of the water and swim rapidly and efficiently. Although its skin has little value in most countries, there is an increasing demand in parts of Peru. X Close Image credit. Radiotagging and tracking methods. This classification divides the individuals into juveniles with deciduous premolarssubadults definitive premolars and 3 molarsand adults definitive premolars and 4 molars.

To test the null hypothesis that both sexes had the same activity pattern, we used the G -test. Positive Chironectes minimus is hunted by humans for its waterproof fur. Bressiani for instructing us on his method to trap Chironectes; A. This terrestrial biome includes summits of high mountains, either without vegetation or covered by low, tundra-like vegetation.

Karimi’s fat-tailed mouse opossum Thylamys karimii. Melina de Souza Leite. A Penis retracted of Micoureus demerarae displaying prominent sigmoid flexure SF.