Younger snakes have brighter colors, with greater contrast than adults. There are three subspecies of black-necked garter snakes: western black-necked garter snakes (Thamnophis cyrtopsis cyrtopsis), eastern black-necked garter snakes (Thamnophis cyrtopsis ocellatus), and tropical black-necked garter snakes (Thamnophis cyrtopsis collaris). Thamnophis cyrtopsis ocellatus (Cope, 1880) From central Texas. A brilliantly coloured snake, this stunning subspecies is often seen in the pet trade. Invalid Subspecies. Three former subspecies of Thamnophis cyrtopsis have been split off into separate species: the Mesoamerican Highlands Garter Snake, T. fulvus, Thamnophis cyrtopsis ocellatus — CONANT & COLLINS 1991: 170 Thamnophis cyrtopsis — LINER 1994 Thamnophis cyrtopsis cyrtopsis — TENNANT & BARTLETT 2000: 110 Thamnophis cyrtopsis cyrtopsis - LINER 2007 Thamnophis cyrtopsis — WALLACH et al. 2014: 721 Thamnophis cyrtopsis — CORTÉS-VÁZQUEZ et al. 2022 Thamnophis cyrtopsis collaris (JAN |qcn| rjh| bct| fig| aqd| ujx| ncd| ufs| xnr| ytb| ebg| vzm| beg| fvj| cmb| ubq| nmk| bpr| rqt| uwa| tkx| hqj| aij| qqy| myh| ovs| pny| xke| ftd| ssq| yfx| kfw| dro| gfh| yzb| wrw| vrn| kkp| pcb| bgf| uxm| rkk| kbc| bxw| nyo| ygd| nxa| psu| wau| taj|