Reproductive traits and change in body shape of neonates in the Oak Forest Skink, Plestiodon lynxe

Reproductive traits are critically important for understanding how organisms adapt to their respective environments. In this study, we provide information on relative litter mass (RLM) and other litter and neonate related characters of nine female Plestiodon lynxe captured in the field. We also recorded seven body dimensions in 16 neonates and 15 two-month juveniles, and on the basis of these dimensions we compared the body shape of these two age classes to detect changes in the proportions of body parts. The average litter size (4.55) is larger than that found in other viviparous species of Plestiodon, but smaller than those of congeneric oviparous species of similar size. However, the average body size of newborns (25.49 mm) is similar to that of other oviparous and viviparous species of Plestiodon. The average RLM was relatively high (0.36). The relative size of the head and limbs becomes proportionally smaller, whereas the axilla-groin length becomes proportionally larger in the first 2 months of life. We suggest that these changes are related to changes in locomotion and microhabitat use

New occurrence records of Eleutherodactylus syristes in Guerrero and Oaxaca, Mexico

AbstractThe Sierra Madre del Sur (SMS) of southern Mexico is known for its exceptionally high levels of amphibian endemism, but knowledge of species’ ranges in the region is incomplete. Here, we report new locality records for Eleutherodactylus syristes (Hoyt, 1965) from the states of Oaxaca and Guerrero. Previously, this species was known only from the Pacific slopes of the Sierra de Miahuatlán and Mixteca Alta in Oaxaca. These new occurrence records extend the known range of this species by approximately 335km from the type locality and increase the elevational range, indicating it is more widespread in the SMS. Eleutherodactylus syristes is currently listed as endangered by the IUCN based on its limited distribution and ongoing threats to its persistence

Supplementary material 2 from: Nieto-Montes de Oca A, Sánchez-Vega H, Durán-Fuentes I (2018) A new species of knob-scaled lizard (Xenosauridae, Xenosaurus) from the Sierra Madre Oriental of Puebla, Mexico. ZooKeys 737: 141-160. https://doi.org/10.3897/zookeys.737.15095

A new species of Xenosaurus in the X. tzacualtipantecus clade is described from the Sierra Madre Oriental of northern Puebla, Mexico. The new species differs from all of its congeners in possessing a unique combination of characters. The new species appears to be allopatric and fills in the geographic gap between the geographic distributions of X. tzacualtipantecus and the species in the newmanorum clade to the north and northwest and those of the species in the grandis and rackhami clades to the south and southeast. The new species occurs between approximately 880 m and 1470 m of elevation, and appears to be restricted to cloud forest, which has been replaced by coffee plantations in many areas. An updated key to the species of Xenosaurus is provided

Figure 2 in Long forsaken species diversity in the Middle American lizard Holcosus undulatus (Teiidae)

Figure 2. Bayesian MCC tree of H. undulatus based on a partitioned analysis of the mitochondrial dataset. Outgroups are not shown. Numbers next to branches indicate posterior probability/bootstrap support values.Published as part of <i>Meza-Lázaro, Rubi Nelsi & Oca, Adrián Nieto-Montes De, 2015, Long forsaken species diversity in the Middle American lizard Holcosus undulatus (Teiidae), pp. 189-210 in Zoological Journal of the Linnean Society 175 (1)</i> on page 199, DOI: 10.1111/zoj.12264, <a href="http://zenodo.org/record/10107779">http://zenodo.org/record/10107779</a&gt

Figure 1 in Long forsaken species diversity in the Middle American lizard Holcosus undulatus (Teiidae)

Figure 1. Geographical distribution of the formerly recognized subspecies of H. undulatus in Mexico (reproduced from Smith & Laufe, 1946); and sampling localities for H. undulatus. Numbers at dots refer to specific sample numbers of H. undulatus specimens used in this study. Locality data for these specimens are given in Table S1.Published as part of <i>Meza-Lázaro, Rubi Nelsi & Oca, Adrián Nieto-Montes De, 2015, Long forsaken species diversity in the Middle American lizard Holcosus undulatus (Teiidae), pp. 189-210 in Zoological Journal of the Linnean Society 175 (1)</i> on page 193, DOI: 10.1111/zoj.12264, <a href="http://zenodo.org/record/10107779">http://zenodo.org/record/10107779</a&gt

Anolis boulengerianus Thominot, 1887, a senior synonym of Anolis isthmicus Fitch, 1978 (Squamata: Dactyloidae)

Oca, Adrián Nieto-Montes De, Köhler, Gunther, Feria-Ortiz, Manuel (2014): Anolis boulengerianus Thominot, 1887, a senior synonym of Anolis isthmicus Fitch, 1978 (Squamata: Dactyloidae). Zootaxa 3794 (1): 125-133, DOI: 10.11646/zootaxa.3794.1.