Page 109 - (DK Eyewitness) Travel Guide - South Africa
P. 109

FIELD  GUIDE      107


          Harmless Snakes
        Of the 120 snake species recorded in South Africa, only
        eight are classed as highly venomous. Most of the others
        are entirely harmless. Among the more common of these
        benign slitherers, snakes of the genus Philothamnus are
        generally bright green with large dark eyes, and are often
        seen near water. The widespread rhombic egg-eater,
        sometimes mistaken for a puff adder, can dislocate its
        jaws to swallow an egg whole, regurgitating the crushed
        shell in a neat package.         Rhombic egg-eater, a non-venomous snake












       African Rock Python   Mamba             Cobra
       Species: Python sebae   Genus: Dendroaspis spp   Genus: Naja spp
                        NE                  NE                   NE
       As Africa’s largest snake, this   Mambas are fast-moving    Cobras are long snakes –
       python can reach lengths    and widely feared snakes    up to 3 m (10 ft) – whose
       of 6 m (20 ft), and is very    that generally attack only    trade mark hoods open in
       likely to be seen on safari.    when cornered. The 4-m    warning when they raise
       It is non-venomous,    (12-ft) black mamba,    their head to strike or spit
       wrapping its body around    Africa’s largest venomous   venom into the target’s eye.
       its prey, swallowing    snake, has a distinctive    Bites are fatal, but spitting,
       it whole and slumbering    coffin-shaped head. The    though it can result in
       for weeks or months while    green mamba is smaller and   temporary blindness, causes
       the digestive juices do    shyer. Bites are rare but the   little long-term damage if the
       their work.         venom is fatal.     venom is diluted with water.











       Boomslang           Adder and Viper     Monitor
       Species: Dispholidus typus   Family: Viperidae   Family: Varanidae
                        NE                Variable               NE
       As its Afrikaans name suggests,   The puff adder’s notoriously   Africa’s largest lizard, the
       the boomslang (tree snake) is   sluggish disposition means that   Nile monitor can grow to be
       almost exclusively arboreal. It is   it is more frequently disturbed   3 m (10 ft) long, and is often
       generally green in colour, but   than any other venomous    seen along river margins.
       may also be brown or olive.   snake – and is thus responsible   The closely related savannah
       Theoretically the most toxic of   for more bites than other   monitor is a little smaller in
       African snakes, it is back-fanged   species. Thickset and cryptic ally   size. Both species feed on meat
       and passive, and, except on   marked, it is most com mon in   and carrion and, though not
       snake handlers, it has never   rocky areas, but also occurs    normally dangerous, can inflict
       inflicted a fatal bite.  in most bush habitats.  a nasty bite if cornered.
                                                  Key to Field Guide icons see p72


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