2- Hyloxalus nexipus
Slices are formed on the fingers and 1 1/2 as wide as the penultimate phalanx. Finger I is shorter than finger II. The third finger is not larger in males.
The back is brown to black, usually with dark brown or black spots. The pages are black. TheDorsolateralstreifen start at the snout and end near the cloaca. At half the grain length, they make a restriction to the middle of the body and then continue straight on. Their color is red to orange. Thelateral stripes are cream, pale orange or white-blue.
Ventrolateral streaks are absent.
The upper lip, nose and upper arms are light brown to pale yellow. The upper parts of the hind legs are light brown to pale blue-gray with dark brown horizontal stripes, more rarely with non-regular spots. The inside of the legs is blue-gray.
The throat and abdomen are white to bright yellow. The testicles are black. (after F ROST , 1986)
Hyloxalus nexipus is a species of frog in the family Dendrobatidae. It is found on eastern slopes and foothills of the Andes from southeastern Ecuador south to the region of Yurimaguas in Peru.
Conservation status :
Least Concern (IUCN 3.1)
Scientific classification :
Binomial name :
Colostethus nexipus Frost, 1986
Colostethus citreicola Rivero, 1991
Hyloxalus nexipus males measure 20–24 mm (0.79–0.94 in) and females 19–23 mm (0.75–0.91 in) in snout–vent length. Dorsum is greenish black. Adult males have blacker throats than females. Juveniles have tiny white spots on the dorsum in the sacral region and on the legs. There is usually a dorsolateral as well as an oblique lateral stripe extending to eye.
Calling males have been observed during the daytime; one called from a stone at the edge of a river. The call consists of 20-29 notes, lasting 1–2 seconds. Females lay the eggs on land. Tadpoles are transported to streams by adults and develop in quiet pools in or adjacent to the watercourse. A newly metamorphosed juvenile frog measures about 12 mm (0.47 in).
Habitat and conservation
Its natural habitats are very humid to humid premontane forests and dry forest. It is mostly restricted to rocky stream habitats and waterfalls. It can also occur in modified and lightly degraded habitats, including rural gardens and cutover forest.
Hyloxalus nexipus is not rare where it occurs. It can be potentially threatened by collection for pet trade and habitat loss.
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hyloxalus nexipus dendrobates truncatus
Care articles :
1- Hyloxalus nexipus (FROST, 1986)
courtesy to : www.dendrobase.de/index.php
Hyloxalus nexipus (G RANT , F ROST , C ALDWELL , G AGLIARDO , H ADDAD , K OK , M EANS , N OONAN , S CHARGEL & W HEELER , 2006)
Colostethus citreicola ( R IVERO , 1991)
Colostethus nexipus (F ROST , 1986)
sensu F ROST , 2006
Los Tayos Rocket Frog (Colostethus nexipus: FRANK & R AMUS , 1995)
Limon Rocket Frog (Colostethus citericola: F RANK and R AMUS , 1995)
Amphibia-> Anura-> Dendrobatoidea-> Dendrobatidea-> Hyloxalinae-> Hyloxalus -> Hyloxalus nexipus (F ROST , 1986)
Threat status :
In the Red List because of its high adaptability and wide distribution as "not endangered" classified (IUCN, 2004).
- size :
Dorsal and ventral view of Hyloxalus nexipus ♂
- Brood care behavior::
Males carry the tadpoles from the tufts, which lie on stones or leaves on the river, to calmer parts of the river. The tadpoles swim freely in the river. (after F ROST , 1986)
Type find location of the first description
Los Tayos, Morona-Santiago Province, Ecuador, 78 ° 12'W, 3 ° 10'S "(Source: AMNH)
Distributed in the area of Yurimaguas in Peru along the Andes to Ecuador. 500-1500m altitude.
Location in Peru: Department of San Martín, Cataratas Ahuashiyacu, 14 km northeast of Tarapoto, 730 m (Source: Natural History Museum and Biodiversity Research Center, The University of Kansas)
Distribution area Hyloxalus nexipus
The biotopes of Hyloxalus nexipus are the rocky shores of small fast-flowing streams of lowland rainforest. The frogs are strict riparin and always stay in the immediate vicinity of such waters.
Habitat Hyloxalus nexipus
2- Hyloxalus nexipus
courtesy to : www.dendrobates.org/ hyloxalinae/hyloxalus-nexipus
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Ecuador and Peru, most commonly found at mid-elevations (300-800 m).
This is a strictly riparian species. Males are commonly found among rocks in streams where they can be seen calling and defending their territories vigorously. Males will often climb to the top of rocks and call, other males will then climb up and try to wrestle them off the rocks. Eggs are laid in small clusters on leaves near streams. Tadpoles are transported to flowing water or stream eddies.
This species has a fairly large range and is quite abundant throughout, furthermore population densities are usually very high. To our knowledge this species has not yet been smuggled.
Close relative to H. azureiventris and H. chlorocraspedus.Hyloxalus nexipus shares more superficial similarities with these two species than most other Hyloxalus, being both aposematic and toxic.
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