Frigate Island caecilian - Hypogeophis rostratus
( Cuvier, 1829 )

 

 

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Subspecies: Unknown
Est. World Population:

CITES Status: NOT LISTED
IUCN Status: Endangered
U.S. ESA Status: NOT LISTED

Body Length:
Tail Length:
Shoulder Height:
Weight:

Top Speed:
Jumping Ability: (Horizontal)

Life Span: in the Wild
Life Span: in Captivity

Sexual Maturity: (Females)
Sexual Maturity: (Males)
Litter Size:
Gestation Period:

Habitat:

This species lives in rainforest, coconut plantations, and other anthropogenically disturbed sites such as heavily degraded forest and gardens. It burrows in moist soil, leaf litter and compost. Adults have also been found in streams and pools at night (S. Maddock and D. Gower pers. comm. January 2025). This species is oviparous with direct development (e.g. San Mauro et al. 2014).


Range:

This species occurs on ten islands in the Seychelles: Mahé, Silhouette, Praslin, La Digue, Félicité, Frégate, Sainte Anne, Cerf, Curieuse, and Grand Soeur (e.g. Maddock et al. 2020). It ranges from sea level up to approximately 700 m asl. Its extent of occurrence (EOO) has been estimated at 2,943 km2 and its area of occupancy (AOO) is 184 km2. This widespread, relatively adaptable species potentially occurs on other islands within the granitic Seychelles. Due to the inferred direct impact of climate change on its habitat, it is considered to occur in one threat-defined location.


Conservation:

Conservation Actions In-Place
It occurs in the Morne Seychellois National Park on Mahé Island, Silhouette National Park on Silhouette Island, Curieuse National Park on Curieuse Island, and Praslin National Park on Praslin Island. It has been reported from an unprotected area further south on Mahé Island, and only from unprotected areas on Saint Anne, Cerf, Grand Soeur, La Digue, Frégate and Félicité. 

Conservation Needed
There is a need for improved biosecurity measures to limit the impact of invasive species including disease and disease-vectors (Seychelles Assessment Workshop January 2025). Greater fire prevention and improved fire fighting measures are required, especially on drier islands (S. Maddock and D. Gower pers. comm. January 2025).

Research Needed
Further research is required on its' natural history and the impacts of invasive species, and there is a need for monitoring of the population status of this species. Further surveys on the northern islands, particularly Félicité, Grand Soeur and Curieuse where the species has not or rarely been recorded since 1979, are required.


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