stonefish
Concise Oxford English Dictionary © 2008 Oxford University Press:
stonefish/ˈstəʊnfɪʃ/
▶noun (pl. same or stonefishes) a tropical Indo-Pacific fish of bizarre appearance which rests motionless in the sand with its venomous dorsal spines projecting. [Synanceia verrucosa and other species.]
'stonefish' also found in these Oxford entries:

