112 



AyXALs XEW YOFK ACADEMY OF SCIEXCES 



five in Africa, one in eastern Asia, two in Malay peninsula (one not being 

 known elsewhere in the Old World), four in Ceylon (one not being known 

 elsewhere in the Old World), one in Xew Caledonia, one in Japan, three 

 in the Philippines (two not being known elsewhere in the Old World). 

 two in Malasia and one in Australia. 



I believe it is impossible to explain these distributions by accidental 

 dispersal in relatively recent times through wind or otherwise or by any- 

 recent system of land bridges. 



Taking into account all the genera found in the Lesser Antilles, we 

 find that 22 [20 A per cent, of the total) are practically world-wide in 

 their distribution. This leaves 39 genera which have a more or less re- 

 stricted range in the eastern hemisphere. Of these, 7 (18.0 per cent.) 

 are found in central or northern Europe. 10 (25.6 per cent.) in the Med- 

 iterranean region. 23 (59.0 per cent.) in Africa, 5 (12.8 per cent.) in 

 Madagascar, 20 (51.3 per cent.) in continental Asia, 10 (25.6 per cent.) 

 in Ceylon, 8 (20.5 per cent.) in Japan, 8 (20.5 per cent.) in Philippines, 

 12 (30.8 per cent.) in Malasia, 5 (12.8 per cent.) in the smaller Pacific 

 Islands, and 8 (20.5 per cent.) in Australia. 



The American distribution outside of the Lesser Antilles of Lesser 

 Antillean genera is shown in Table II. The study of this table had better 

 be deferred until after the Greater Antilles have been considered. 



Table II. — Aincrican (list rUjut ion of Lesser AntiUcan genera of spiders' 



Not 



on 

 main- 

 land 



S. A. 



only 



C. A. 



only 



U. S. 

 only 



S. A. 



C. A. 



6 

 o 



o 



1 



3 



1 

 1 



S. A. 

 C. A. S. A. C. A. 

 U. S. U. S. U. S. 



Total 



Xot in other An- 

 tilles 9 



P. E. only 1 



Hisp. only 



Cuba only 



Jam. onlv 



P. E.. Hisp 



P. E., Cuba 



Hisp., Cuba .... 



Hisp.. -Jam 



P. E., His p., 



Cuba 



P. E., Cuba, 

 Jam 



Hisp., Cuba, Jam. 1 



P. E.. Hisp., 

 Cuba, Jam ... 



19 

 1 

 1 

 3 



1 



1 



1 



1 

 1 



1 



3 1 14 



111 



1 



1 .. 3 



1 



1 



3 



3 



1 



9 



2 



5 



54 

 o 



la 



1 

 1 



4r 



1 



12- 



2" 

 2 



8 



Total 11 



25 



o 





16 



5 3 43 



IDS 



' Columns refer lo the mainland and rows to rhe Antilles. 

 and ''L'. S." includes everythins north of Mexico. 



"C. A." includes Mexico, 



