272 
BLUEFIELDS. 
tuosum). When young, it is covered with a green 
hark ; the trunk commonly swells out in the middle, 
and is studded as well as the branches with great tri- 
angular spines, some of them an inch in diameter. 
But by the time the tree has attained adult age its 
appearance is very different : the bark is of a hoary 
grey hue, sometimes almost white ; the triangular 
spines disappear from the bole, and are found only 
on the upper surfaces of the limbs ; the ventricose 
form of the trunk is generally lost, and, what gives 
this tree a very remarkable aspect, the basal part of 
the stem sends out vast spurs radiating in all direc- 
tions and extending to a great distance. Their out- 
line is very irregular, but their usual form is that of 
perpendicular walls of timber, often not more than 
six inches thick, and not commonly exceeding a foot, 
retaining an even thickness in all parts, but frequently 
deduced from those organs : the colour, however, is very marked and 
peculiar. This specimen also was obtained at Content, in January. 
Admeasurements of the above Four Species. 
Jam. Achr. Carp. Sulp. 
Expanse of wings 
Length from crown to fork 
inches 
„ muzzle to tip of calcareum 
Ear from hinder base of tragus to tip 
front base 
Tragus, longest side - _ _ _ 
„ shortest side . _ _ _ 
Nose-leaf, from base to tip - 
Length of fore-arm _ _ _ _ 
„ leg from knee to calcareum 
„ foot from calcareum to tip of claws 
„ calcareum _ _ - . 
