[6] The specific epithet fieldi is in honor of American anthropologist Henry Field, who collected the holotype.

Additional differences from the Persian horned viper include much shorter (relatively to the overall body length) tail as well as the fact that while in P. persicus all dorsal and lateral scales are strongly keeled, P. fieldi has several rows of almost smooth lateral scales.

[3] According to McDiarmid et al. (1999) P. fieldi is found in the Sinai Peninsula, Israel, Jordan, northern Saudi Arabia, northwestern Iraq, and possibly in southern Syria.

[2] According to Mallow et al. (2003) it is found in the Sinai Peninsula, southern Israel, Jordan, extreme northern Saudi Arabia, and southwestern Iraq.

It is reported that a polyvalent antiserum does offer some protection from the hemotoxins, but none against the neurotoxic effects of P. fieldi venom.