Kalmar "Bitis arietans" tana nufin wani nau'in maciji da aka fi sani da "puff adder." Ana samunsa a sassa daban-daban na Afirka kuma an san shi da sautin sauti na musamman da yanayin tashin hankali lokacin da aka yi masa barazana. Dafin Bitis arietans yana da guba sosai kuma yana iya haifar da ciwo mai tsanani, kumburi, da lalacewar nama idan ba a yi gaggawar magance su ba.
