The world's argasid tick fauna comprises 183 species in four genera, namely 
Argas, Carios, Ornithodoros and Otobius in the family Argasidae. The ixodid tick 
fauna consists of 241 species in the genus Ixodes and 442 species in the genera 
Amblyomma, Anomalohimalaya, Bothriocroton, Cosmiomma, Dermacentor, 
Haemaphysalis, Hyalomma, Margaropus, Nosomma, Rhipicentor and Rhipicephalus in 
the family Ixodidae, with the genus Boophilus becoming a subgenus of the genus 
Rhipicephalus. The family Nuttalliellidae is represented by the monospecific 
genus Nuttalliella. The species names of these ticks, based on seven previous 
complete or partial listings, as well as those of recently described new 
species, are presented in tabular format.