Viper

In Job 20:16, Isa. 30:6; 59:5, the Heb. word eph'eh is thus
rendered. The Hebrew word, however, probably denotes a species
of poisonous serpents known by the Arabic name of 'el ephah.
Tristram has identified it with the sand viper, a species of
small size common in sandy regions, and frequently found under
stones by the shores of the Dead Sea. It is rapid in its
movements, and highly poisonous. In the New Testament "echidne"
is used (Matt. 3:7; 12:34; 23:33) for any poisonous snake. The
viper mentioned in Acts 28:3 was probably the vipera aspis, or
the Mediterranean viper. (See ADDER T0000085.)