NOLES ON THE REPTILES OF BARBADOS. 297 
world-wide distribution in the tropics, and its occurrence in 
Barbados may be easily accounted for, as it is known to be 
transported in ships. Mabuia agilis, local name “‘ Scorpion,” is 
rather rare in Barbados; it chiefly affects damp and rushy 
situations. I procured it from Graeme Hall Swamp and 
Chancery Lane; it occurs over the greater part of Tropical 
America, and its transport either by the agency of man, or by 
individuals, or eggs, on floating trees from the South American 
continent may be readily conceived. Anolis alligator, the pretty 
little Common Green Lizard of Barbados, is special to the Lesser 
Antilles. Naturalists have subdivided it into almost as many 
species or varieties as the islands it inhabits; lately Mr. S. 
Garman, an American naturalist, has given the Barbados form 
the specific name of Anolis extremus (Bull. Essex Inst. vol. xix. 
1887). It must be remembered that no animals appear to have 
a greater aptitude, when cut off from the parent stock, in 
assuming specific variations than Lizards. The introduction of 
Anolis alligator into Barbados would probably be concurrent 
with the advent, from some other island of the Lesser Antilles, 
of the prehistoric men who first grounded their canoes on its 
shores, for this Lizard may be often seen sunning itself on boats 
hauled up on the beach, and individuals often take an involuntary 
cruise in the fishing-boats. Centropyx intermedius, Gray, the 
largest and handsomest Lizard in Barbados, where it is known 
by the name of “Guana,” probably a corruption of Iguana, and 
not, as | have heard in Barbados, from its having been intro- 
duced by the guano-laden ships, has likewise received specific 
rank at the hand of Mr. Garman as Centropyx copii. Whether the 
difference between the Barbados form and the South American race 
is sufficiently distinct to entitle it to specific rank I would not 
venture to determine, but Mr. G. A. Boulenger, who has examined 
the specimens I brought from Barbados, informs me that there 
is not the slightest difference between them and the typical 
specimens of Centropyx intermedius, Gray. It is very remarkable, 
as I am likewise informed by Mr. Boulenger, that the large series 
of Centropyx intermedius in the British Museum from South 
America consists only of females, and the specimens I brought 
from Barbados are of the same sex. Apparently the male is 
undescribed, and I take this opportunity of suggesting to some 
of my kind friends in Barbados that a series of males, preserved 
ZOOLOGIST.—AvUGUST, 1889. QA 
