54 Wetmore, Birds of Culebra Island, P. R. ies 
crevices about houses. Rabbits have been introduced on a small 
island in the inner bay and have fairly overrun it. None have 
come ashore though only a hundred yards or so of water separate 
them from the main island. 
Among lizards Ameiva exul was common and I collected one 
specimen of Mabuya sloani. Two Anolis were abundant (Anolis 
cristatellus and A. stratulus). 
Brirp LIFE. 
At the present time 53 species of birds are known from Culebra 
Island. One other, Phaéthon cethereus, is included as of uncertain 
status. Of the valid species 49 have been actually observed or 
collected by the writer and others, while five are included on the 
strength of reports made by residents on the island. Three forms 
of birds that are truly Porto Rican are found, viz.: 
Myarchus antillarum. Holoquiscalus brachy pterus. 
Tiaris o. bryant. 
There are therefore 22 birds that may be considered as endemic 
to the fauna of Porto Rico that do not reach Culebra. There are 
five missing on Culebra of those that extend their range as far as 
Vieques Island. Three of those lacking are common on Vieques. 
Following is the list: 
Saurothera vieilloti (?) Gymnasvo nudipes (?). 
Melanerpes portoricensis. Tolmarchus taylor. 
Dendroica adelaide. 
The avifauna of Culebra is seen to be much poorer than that of 
Porto Rico and to show a slight decrease in the number of forms 
below that of Vieques. There are four birds ranging to Culebra 
that do not reach Porto Rico though all but the first one are found 
on Vieques, viz.: 
Geotrygon mystacea. Sericotes h. holosericeus. 
Mierolyssa ec. exilis. Elainea m. martinica, 
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