A LIST OF SPIDERS FROM MONA ISLAND, 
WITH DESCRIPTIONS OF NEW AND 
LITTLE KNOWN SPECIES 1 
By Elizabeth B. Bryant 
Museum of Comparative Zoology 
The small Mona Island, between Haiti and Puerto Rico, 
is rarely visited by collectors and its spider fauna is little 
known. In 1914 Mr. N. Banks described two new species 
from there in a short paper published in the Bulletin of 
the American Museum of Natural History, and much 
later, 1929-1930, Dr. A. Petrunkevitch noted in his 
“Spiders of Porto Rico” fifteen species, of which three 
were new. 
Recently, two small collections from Mona have been 
received by the Museum of Comparative Zoology. The 
first was from Dr. Serralles of Puerto Rico, who spent a 
week there during April, 1944. He very kindly sent the 
material to me for identification. The second collection 
was from Mr. Harry Beatty, who spent the month of 
August of the same year there. Neither collection is 
large, either in species or specimens, but as the island is 
small and not very diversified, the spider fauna probably 
is small. Four species are new. 
This paper lists the forty-one species that have been 
reported from Mona and includes descriptions of the four 
new species and the hitherto unknown form of Hentzia 
squamata (Petr.), with elongate mandibles. Collecting 
at a different season would undoubtedly add many more 
species. 
The following is a list of the species collected by Dr. 
Serralles in April and by Mr. Beatty in August 1944. 
Fam. Filistatid^ 
2 F Hist at a hib emails Hentz Apr. Aug. 
Fam. (Ecobiid^ 
2 CEcobius benneri Petr. Apr. 
1 Published with a grant from the Museum of Comparative Zoology at 
Harvard College. 
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