chamberlin: new spiders of the family aviculariidae. 49 



all geniculate; in anterior view moderately bent ectad, the curve 

 chiefly at middle of length. 



Male (type). Length 38 mm. 



Cephalothorax : length, 19.1 mm.; width, 16.o mm. 



fem. tib. +pat. met. tar. total 



Grammostola spatulatum Cambr., also from Chile and apparently 

 closely related, differs in having the stridulating spines of coxae of 

 palp and leg I few in number and of larger size, red in color; in hav- 

 ing the metatarsus I as long as tibia (in G. cala shorter in ratio 1 1 : 

 13) ; in the different form of spine of palpal organ, etc. 



Eurypelma regina,'^ sp. nov. 

 Plate 4, fig. 1. 



Type. — M. C. Z. 56. d^. Brazil: Rio de Janeiro; Rio de 

 Janeiro. Nathaniel Thayer Exped. 



Paratypes. — M. C. Z. 57. Two 9 9. Brazil: Rio de Janeiro; 

 Macacos. William Roberts. 



Integument of carapace, sternum, palpi excepting coxae ventrally, 

 chelicerae excepting ventrally, and legs black or in part of dull chest- 

 nut-black. Coxae of palps beneath proximal portion of labium, and 

 chelicerae ventrally, lighter and more reddish. Pubescence of these 

 parts in general dark chocolate-brown, with grey intermixed on 

 ventral surface of femora, on lower part of anterior surface of cheli- 

 cerae, etc. Fringe of the chelicerae and endites bright red as usual. 

 The longitudinal streaks on patellae and other joints, in many 

 species occupied by lighter pubescence, are in the present one glabrous, 

 bristle free, a fringe of hair extending in on each side partly covering 

 integument. Pubescence of sternum and coxae ventrally velvety 

 chocolate-brown, some grey intermixed on the coxae. Bristles of 

 legs long, numerous, rufous proximally and cinereous distally; those 



' regina, queen. 



