Bray, I.H. and Allain, S.J. 2019. Are squash boxes necessary? The use of dorsal photographs to determine snout-vent lengths of Slow Worms (Anguis fragilis). Reptiles & Amphibians. 26, 2 (Aug. 2019), 165–166. DOI:https://doi.org/10.17161/randa.v26i2.14395.