Observations on reproduction in captivity of the endemic long-tailed snake Philodryas chamissonis (Wiegmann, 1835) (Reptilia, Squamata, Dipsadidae) from Chile

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Abstract

The long-tailed snake Philodryas chamissonis is an oviparous rear-fanged species endemic to Chile, whose reproductive biology is currently based on anecdotic reports. The characteristics of the eggs, incubation time, and hatching are still unknown. This work describes for the first time the oviposition of 16 eggs by a female in captivity at Zoológico Nacional in Chile. After an incubation period of 59 days, seven neonates were born. We recorded data of biometry and ecdysis of these neonates for 9 months. In addition, a review about parameters of egg incubation and hatching for Philodryas species is provided.

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Most cited references 8

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Molecular phylogeny of the New World Dipsadidae (Serpentes: Colubroidea): a reappraisal

Felipe Grazziotin, Hussam Zaher, Robert W. Murphy … (2012)

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Genetic divergence of Chilean long-tailed snake (Philodryas chamissonis) across latitudes: conservation threats for different lineages : Phylogeography of Chilean long-tailed snake

N. Sallaberry-Pincheira, C Garin, D. González-Acuña … (2011)

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Energetics and food requirements of the female snake Phillodryas chamissonis during the breeding season.

Francisco Bozinovic, Mario Rosenmann (1988)

1.The energetic performance and food requirements of female Phillodryas chamissonis was determined during its breeding season at different ambient temperatures. 2. If the long tailed snake is active for 24 weeks, 25 to 32 30-g rodents are required for reproduction and maintenance. This is slightly more than one rodent per week. 3. The energy cost of reproduction (38 to 48% of total metabolism) is close to the values reported for fish (35% of metabolizable energy). 4. Due to their low metabolic rates, the theoretical predation pressure (on a prey biomass basis) exerted by the snakes should be 2 to 2.5% of that expected for endothermic predators of similar body size.