Gorman - p. 4 
It is not clear what advantage extremus might have over luciae, nor is 
it clear why it is so relatively restricted in distribution since it is 
clear that it can compete effectively against luciae. 
Gorman, Soulé and Yang have examined the following introduced anole 
populations electrophoretically: extremus from St. Lucia and Bermuda; 
leachi from Bermuda; grahami from Bermuda; trinitatis and aeneus from , 
Trinidad. These have been compared with the native populations. 
In all cases, except Trinidad aeneus, there are much lower levels of 
polymorphism in the introduced populations. This might be expected just 
from sampling error alone (founder effect). 
However, the Bermuda grahami introduction was intentional and large 
scale, 73 lizards were released (45 females) around the turn of the 
century. Since females can store sperm, we might estimate that around 100 
individuals served as founders. 
Levels of heterozygosity do not differ too much between Bermuda and 
Jamaica, but this is because the loci that are polymorphic on Bermuda show 
more heterozygosity than on Jamaica, 11 of 23 loci were polymorphic on 
Jamaica, and only 5 of the same 23 are polymorphic on Bermuda. 
The data have not yet been analyzed further. 
6. Genetic relationships of the Puerto Rican anole fauna, Data 
gathering has been completed and a matrix of relationships (Nei's Genetic 
Distance) computed for 14 populations of A, cristatellus, and one or more 
populations of the other nine species on the island. In addition, A. 
monensis, A. cybotes, A. scriptus, and A. acutus, plus A. occulatus of 
Dominica were compared, 
The highlights of this study are as follows: 
a. Variability in cristatellus is highest in the east (Virgin Islands, 
including some of the smaller keys) and lowest in the southwest (around La 
Parguera). The only exception is that variability drops precipitously on 
tiny keys. 
b., Genetic similarity is greater between V.I. cristatellus and scriptus 
from Grand Turk than between V.I. cristatellus and western Puerto Rico 
cristatellus, The species status of scriptus is highly questionable. It 
is the only lizard karyotypically identical to cristatellus. A. scriptus 
is also relatively low in variability; thus it looks like a recent colonizer 
from the Virgin Islands or eastern Puerto Rico. 
c. A. monensis is significantly closer to A. cooki than it is to 
cristatellus. This confirms the evidence from chromosomes, 
