Leptodactylus silvanimbus McCranie, Wilson & Porras 1980

Leptodactylus silvanimbus is a moderately sized frog, ranging from 41-55 mm SVL in adult males and 44-48 mm SVL in adult females. Adult males possess a single, internal vocal sac, two black thumb spines on each hand, and lateral ridges on each toe. Adult females have small fringes along their toes. All individuals lack dorsolateral folds and light, middorsal stripes. The rough skin on the back is grayish brown and covered in small tubercles. The belly is a solid cream color. Tadpoles measure 42-53 mm in total length. The bodies are brownish gray and tails are clear with brown dots (Heyer et al. 2002).Leptodactylus silvanimbus was named for the habitat in which it was originally found. In Latin, "silva" means "forest," and "nimbus" means "cloud" (McCranie et al. 1980).Frank and Ramus (1995) proposed "Honduras white-lipped frog" as a common name for L. silvanimbus, but the lack of light coloring on the lip of this species resulted in the rejection of this name (Heyer et al. 2002).

Southwestern Honduras. Populations have been found at three different localities around 1470-2000 m along the Continental Divide of the Cordillera de Celaque and Cordillera del Merendon in the Departamento Ototepeque, in cloud or pine forest (Heyer et al. 2002).

The call of L. silvanimbus is a single note ranging from 0.15-0.17 seconds. It fluctuates in frequency slightly, from 420 Hz at the beginning of the call, to 1920 Hz as the call continues, although these modulations are not discernable to the human ear. About 23 calls are made per minute (Heyer et al. 2002).Larvae of Leptodactylus silvanimbus are members of the lentic, benthic guild (Altig and Johnston 1989).

Due to deforestation in Honduras, many of the cloud forests and moderate elevation pine forests that were home to Leptodactylus silvanimbus have been almost completely destroyed. One of the three known habitats has already been dramatically affected by these changing environmental conditions; when the community was checked in 1995, no members of the species were found. There is a possibility that other communities of L. silvanimbus exist, but further surveys of the Ocotepaque region need to be conducted before this can be determined. Although this species is known to exist in deforested areas for short periods of time, the fact that none of L. silvanimbus' natural habitats are protected means that the chances for the species' continued survival is not good (Heyer et al. 2002).

Leptodactylus silvanimbus is a species of frog in the family Leptodactylidae. It is endemic to Honduras found in the region of El Chaguiton, Ocotepeque. This region is located at 1870 meters, making this species the only one in its genus to live at such high elevation. Its natural habitats are subtropical or tropical moist montane forests, intermittent rivers, pastureland, and ponds. It is threatened by habitat loss.