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The herpetological bulletin
British Herpetological Society
The herpetological bulletin

British Herpetological Society

1473-0928

The herpetological bulletin/Journal The herpetological bulletin
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    Reproductive husbandry of the rat snake Elaphe moellendorffi

    MATTHEW COOKLEAH J. WILLIAMSIRI GILL
    5页
    查看更多>>摘要：M?llendorff's rat snake Elaphe moellendorffi is a large colubrid snake that has only been propagated a few times in captivity, predominantly in private collections. Chester Zoo successfully hatched 6 rat snakes in October 2019. Prior to introduction, the adult snakes were exposed to a cycling regime that simulated natural seasonality. Eggs were incubated and the young snakes hatched after 80-85 days and had their first slough 13-15 days post hatching. Hatch weights ranged between 19 and 20.6 g. Through a degree of manipulation, the neonates fed successfully 4 days after their first slough.
      原文链接:
    • NSTL

    First reproduction of Panha's crocodile newt Tylototriton panhai in captivity, with a description of the courtship behaviour, eggs and larval development

    AXEL HERNANDEZPORRAWEE POMCHOTEARNAUD JAMIN
    6页
    查看更多>>摘要：Amphibians are facing extinction on a global scale and maintaining small populations of threatened or endangered species in captivity is essential. In connection with potential captive breeding of Panha's crocodile newt, Tylototriton panhai, we report a detailed husbandry protocol and describe breeding and mating behaviour. After six years in captivity, a group of two adult females and six males, tentatively identified as T. panhai, successfully reproduced for the first time on 24th June 2020 after a heavy rainstorm and two subsequent days of precipitation when water temperatures in a large aquaterrarium placed outdoors were 18-21 °C. The complete courtship behaviour consisted of five main stages: i/ approach; ii/ nuptial dance; iii/ amplexus; iv/ spermatophore deposition; v/ fertilisation. The two females laid a total of 84 eggs (41 and 43 eggs each) that were deposited on land in clutches of 4-22 eggs or even singly. Egg size averaged 12.6 ± 0.4 mm and the mean size of the embryo capsule 5.1 ± 0.1 (n=84). The egg hatch success rate was ~80% and on hatching the larvae moved to the water at the bottom of the aquaterrarium. By 7-9 days after hatching the total larval length was 11.89-13.78 mm (n=67). Diagnostic morphological characters are provided for stages 30-46. Metamorphosis occurred at 99-102 days and efts started to move to land at an average total length of 56.2 mm and weight of 0.6-0.9 g.
      原文链接:
    • NSTL

    Brumation of the clouded monitor lizard Varanus nebulosus in north-eastern Thailand

    SURACHIT WAENGSOTHORNCOLIN T. STRINEJESSE GOODYEARGEORGE A. GALE...
    6页
    查看更多>>摘要：The clouded monitor lizard (Varanus nebulosus), is a semi arboreal lizard widely distributed throughout much of South and Southeast Asia. Despite its wide distribution there is almost nothing known about the ecology of this species. During the course of an 11-month radio telemetry study, in a reserve with a tropical savannah climate (K?ppen Aw), we made the first records of brumation in this monitor lizard. This contrasts with earlier reports of the same species in a tropical monsoon climate (K?ppen Am) where no brumation was recorded. We successfully tracked 10 individuals throughout their inactive period and found that seven of the monitors selected tree hollows within the endangered Shorea henryana tree. All tree hollows selected faced between the east and south cardinal points (90 °-180 °). The average brumation period was 100 days (range 86-113 days, standard deviation - 10.7), beginning in November at a time of falling temperatures and humidities and ending in early March when these variables had been restored. Eight of the 10 monitors basked partially or completely out of their shelters on multiple occasions. Of those eight monitors, two individuals moved between shelters during brumation after an extended period in one location. Our observations provide insight into the relationship between V. nebulosus and the tree S.henryana, in the dry evergreen forests of north-eastern Thailand. Future research should investigate how this tree will be affected by climate change in the coming decades and what that could mean for the future persistence of the clouded monitors that appear to rely on it.
      原文链接:
    • NSTL

    Collection of vulnerable nests with eggs for the captive incubation of king cobra Ophiophagus hannah as a conservation strategy in Mizoram north-east India

    LAL BIAKZUALALAL RINSANGASAMUEL LIANZELARO MALSAWMA...
    3页
    查看更多>>摘要：The king cobra Ophiophagus hannah (Cantor, 1936) is the world's largest venomous snake inhabiting a wide variety of niches such as grassland, forests, shrubland, wetlands, mangrove swamps, agricultural areas and may occur in the vicinity of rural villages (Whitaker & Captain, 2008; Stuart et al., 2012). It is widely distributed across south Asia, southeast Asia, and east Asia at altitudes up to at least 2,000 m a.s.l. (Waltner, 1975; Das et al., 2008). It is the only snake species where females actively construct a nest from leaf litter or other plant material (Loveridge, 1946; Schmidt & Inger, 1957; Whitaker et al., 2013; Hrima et al., 2014; Dolia, 2018). Nests have been seen between April and July (Daniel, 1983; Whitaker et al., 2013). The females are known to guard the nest, sometimes residing in the nest's upper chamber or coiling on top of the nest (Loveridge, 1946; Whitaker et al., 2013; Vanlalchhuana et al., 2017), and subsequently deserting the nest when the neonates hatch (Kannan, 1993). Females can lay up to 14-53 eggs in a single clutch (Das, 2012; Hrima et al., 2014; Burchfield, 1977). On one occasion, twin nests at a distance of only 6.6 m apart were reported from the northern India (Dolia & Das, 2020).
      原文链接:
    • NSTL

    Defensive behaviour by the African snakes Amblyodipsas unicolor and Atractaspis andersonii

    BARRY HUGHESTHOMAS KOWALSKI
    4页
    查看更多>>摘要：Coiling into a spiral as a way of concealing and protecting the head is described in species of two African snake genera - Amblyodipsas and Atractaspis, the latter otherwise known for a very different and distinctive 'snout to ground' avoidance behaviour. Spiralling and balling are considered in other snakes worldwide and the individualism of animal behaviour warned against. It is to be hoped that recognition of 'spiralling' as a distinctive form of 'coiling' or 'balling' behaviour will lead to more critical analysis of snake defensive behaviour.
      原文链接:
    • NSTL

    Records of multiple clutching in captive mountain chicken frogs Leptodactylus fallax

    FRANCESCA SERVINIKRISTOFER F?RS?TERBENJAMIN TAPLEYCHRISTOPHER J MICHAELS...
    4页
    查看更多>>摘要：Multiple clutching, with two or three successful clutches raised in a single breeding season, is reported from two females of Leptodactylus fallax in two European zoos. Previously, only single clutches were known to be raised by this species. Multiple clutching is perhaps unexpected in this species due to its resource-heavy parental care behaviour. Potential drivers of multiple clutching, including food resourcing and timing and size of initial clutches, are discussed.
      原文链接:
    • NSTL

    First record of feeding and defensive behaviour in Thompson's caecilian Caecilia thompsoni from the Upper Magdalena Valley, Tolima, Colombia

    JUAN DAVID FERNáNDEZ-ROLDáNDIEGO ANDRéS GóMEZ-SáNCHEZ
    3页
    查看更多>>摘要：The most speciose caecilian genus in the Neotropics, Caecilia Linnaeus, 1758, has a total of 34 species distributed in southern Central America and South America. These caecilians are characterised by having an imperforate stapes, inner mandibular teeth, eyes surrounded by the maxillopalatine bone, and monocusped teeth (Wilkinson et al., 2011) and have offspring that develop within the egg so that there is no aquatic stage (Funk et al., 2004; Pérez et al., 2009).
      原文链接:
    • NSTL

    Red tail in male spiny footed lizards Acanthodactylus erythrurus during the breeding season

    FRANCISCO JIMéNEZ-CAZALLA
    2页
    查看更多>>摘要：The spiny footed lizard Acanthodactylus erythrurus (Schinz, 1833) is a widely distributed lacertid from the Iberian Peninsula and north-west Africa (Sindaco & Jeremcenko, 2008) of which the complex taxonomy continues to be an ongoing topic of discussion (Harris et al., 2004; Fonseca et al., 2009, Miralles et al., 2020). This species complex displays visible polymorphism throughout its range, although its features of sexual dimorphism are considered to be invariable across all phenotypic forms (Schleich et al., 1996; Salvador, 2014). Chromatic dimorphism mainly consists of the accentuation of colouration in males, especially the lateral yellow ocelli, whilst in females the tail and hind legs exhibit a conspicuous red/orange colouration. These characteristics are evident both in the population of north-west Africa (Schleich et al., 1996), as well as in the populations of the Iberian Peninsula (González de la Vega, 1989; Ortiz-Santaliestra et al., 2011; Fresnillo et al., 2015). It has even been suggested that there are no examples of males displaying tails with red colouration (Barbadillo, 1994). Hypotheses that aim to account for this sexual dimorphism contemplate the possibility that the red tail observed in sexually receptive females could be linked to mating, whilst the loss of colouration could be linked to pregnancy (Cuervo & Belliure, 2013).
      原文链接:
    • NSTL

    First records of Columbus crabs Planes minutus associated with loggerhead turtles Caretta caretta in Galicia (NW Spain)

    PABLO COVELOALFREDO LóPEZ
    2页
    查看更多>>摘要：The loggerhead turtle (Caretta caretta Linnaeus, 1758) is distributed in temperate and tropical oceans and seas worldwide (Wallace et al., 2010). Most of the loggerheads that appear on the European Atlantic coast are juveniles originating from nesting areas in the western Atlantic (Bolten et al., 1998). These specimens have either deviated from their usual developmental migration within the north Atlantic Gyre system (Witt et al., 2007), or have originated from Cape Verde having been displaced by storms (Monzón-Argüello et al., 2012). Since 1990, in Galicia (NW Spain) an average of 9.7 individuals are recorded yearly by the stranding network: they are juveniles that are found stranded at the coast or accidentally captured in fishing gear, both alive and dead (López et al., 2014).
      原文链接:
    • NSTL

    Foam making behaviour of tadpoles of the pepper frog Leptodactylus vastus in north-eastern Brazil

    GABRIEL NóBREGA DE ALMEIDA MARINHOMARIA EDUARDA DE ARAúJO ALMEIDAFERNANDA RODRIGUES MEIRAJULIANA DELFINO DE SOUSA...
    2页
    查看更多>>摘要：The pepper frog Leptodactylus vastus Lutz, 1930 belongs to the Leptodactylus pentadactylus group and is the largest species of leptodactylid to occur in north-eastern Brazil (Heyer, 2005). This species is endemic to Brazil and occurs exclusively in open-formation habitats (Heyer, 2005).
      原文链接:
    • NSTL