216 
BLUEFIELDS. 
nierous black dots, a species of Aulostoma*, to which 
the negroes give the name of Soap-fish. Here, too, 
is what they call a Flounder, hut truly a kind of 
Turbot [Rhombus argus), a handsomely marked fish, 
being studded all over the upper side with large blue 
rings, inclosing pale yellow areas on a dusky brown 
ground-colour. There are many other things, young 
Sharks, Hedgehog-fishes, Trunk-fishes, et hoc genus 
omne ; — but these we must leave, and make the 
best of our way back to Bluefields, or we shall not 
be in time for “ second breakfast.” 
ANGLES. 
The faculty possessed by certain small species of 
the Iguaniform tribe of Lizards, of efiecting rapid 
and strongly marked changes in the colours of their 
bodies, is exceedingly interesting. The extent of 
these changes is scarcely inferior to that to which the 
same singular power is exercised by the Chameleons 
of the Old World; and if the latter display pecu- 
liarities of structure more curious to the naturalist, 
the Anoles have the advantage of a form and motions 
as graceful and elegant as the coup d'ceil of the 
Chameleons is hideous. I have already alluded to 
this metachrosis in the Dactyloa Edwardsii, and it no 
less remarkably characterizes the smaller and more 
agreeable species of the restricted genus Anolis. Two 
* This is, doubtless, the A. coloratum of Muller and Troschel 
(Ann. and Mag. of N. H., July, 1848) ; but the character by which 
they distinguish it from A. Chinensis, — the want of brown spots on 
the head, — is valueless; as I have had specimens in which the spots 
were abundant in that part. The fact is, that individuals vary much 
in the amount of the maculation. 
