Description: English: The tongue worm Porocephalus crotali inside a spotted desert racer snake Platyceps karelini. Contents of the journal are CC-BY-4.0 per [1]. Date: 11 October 2014, 08:56:42. Source: Rataj, A. V., et al (2011). Parasites in pet reptiles. Acta Vet Scand 53 33. Author: Rataj, A. V., et al.