August, 1932 The Queensland Naturalist 
41 
iug sharks bring forth their young alive and in large num- 
bers. 
A curious shark not frequently seen in Queensland is 
the Thresher. This shark, 'which is harmless to man, 
possesses a tail over half its own length. As the name 
.implies, this is used to round up schools of fish by thresh- 
ing the water into foam, the iisli meanwhile huddling 
together with fright. A sudden rush in amongst them and 
a thrust to right anl left usually leaves several stunned to 
be devoured at leisure. 
The Sea Devils or Mantas arc* enormous Kays which 
reach a width of twenty-four feet and an estimated weight 
of 10,000 pounds. A Sea Devil washed ashore at Cowan 
Cowan, in Moreton Bay, measured thirteen feet across. 
The deadly and venomous Stone Fish which may be 
described as a muddy coloured, uneven and shapeless mass, 
lies concealed in the mud and rocks along our foreshores, 
its thirteen poisonous spines standing erect ready to pierce 
the foot of an unsuspecting wader. The venom from this 
hsh causes intense agony and delirium lasting many 
hours, with often many days of sickness. 
The Flying Fishes, which are related to the Gar Fish 
and Needle Fish, are capable of long and sustained flights. 
Idle fish usually turns into thei wind when launching, and 
by inking advantage of the air currents, isi able to remain 
aloft for as long ns half a minute. Wood Jones notes Fly- 
ing Fish to repeatedly outstrip a vessel doing seventeen 
knots. 
BOTANY OF EASTER EXCURSION TO UPPER 
CEDAR CREEK. 
(By Ken. Jackson.) 
During the Easter vacation the Field Naturalists ’ camp 
was held at Upper Cedar Creek, in the D ’Aguilar Range. 
This expedition proved a great success, especially as 
regards the botanical wealth of that locality. Of course, 
the prevailing dry weather did not have a good effect on 
the plant life, but as most of the collecting was done in the 
deep rain-forests, this effect was not very noticeable. 
On Good Friday a trip was made to the Love Creek 
Falls. The vegetation here is composed wholly of rain 
forest of ail exceedingly luxuriant character. The- trees 
n oted i nc I uded Hoop Pi nes ( A raucaria C u nningJiamii ) 
which, in the reserve above the falls, had attained an 
enormous size; Tulip Lancewoods ( Harpullia pendula) ; 
these were fairly plentiful, being noticeable mainly by 
their peculiar and attractive seed cases which in places 
littered the ground; Crow’s Ash (Fliridersia australis ), 
and the Bumpy Ash (Flindersia Schott iana ) , the latter 
being represented, in one case, by a fine specimen about 
