some South-American Aviculuiiidie. 97 



iippevside (3 : 7"8) ; the protarsal scopula3 are more scanty 

 and the tarsal scopulae of the third and fourth legs divided by 

 a narrow band of bristles. Palpal organ constructed practi- 

 cally as in C. venatorius. Protarsus of first leg straight^ not 

 arcuate. 



Stridulating-organ practically as in G. venatorius. 



Measurements in millimetres. — Total length 21 ; length of 

 carapace 10, width 2 ; length of first leg 33, second leg 31, 

 third leg 29, fourth leg 36 ; patella and tibia of first and 

 fourth 12'5 ; protarsus of fourth 11. 



Loc. Montserrat [Sir A.Aklerley). 



A smaller species than C. venatorius, presenting many 

 features of the young of the latter, in conformity with the 

 well-known biological law. 



Cyrtopholis agilis, sp. n. 



^ . — About the same size as C. femoralis. Integument 

 covered with brown hairs with a golden lustre. 



Carapace considerably shorter than patella and tibia of 

 first or of fourth legs and distinctly shorter than protarsus of 

 fourth ; cephalic region moderately high ; eyes of anterior 

 line more widely spaced than in 0. femoralis^ the medians 

 about a diameter from each other, but rather less than that 

 from the laterals. 



Legs 4, 1, 2, 3 j tibia of first armed with about five spines, 

 two inner and three outer, one of the latter being apical ; the 

 spurs stout, bluntly rounded, the inferior expanded at the 

 distal end; protarsus lightly arcuate, unspined (? except at 

 apex) ; tibia of second with eight spines ; protarsus with one 

 external spine at base of scopula, which does not reach base 

 of segment ; third and fourth legs more numerously spined ; 

 femur of third scarcely inci-assate ; tarsal scopula of fourth 

 incompletely divided by a band of seta?. 



Palp with two internal tibial spines ; palpal organ with 

 the spine more filiform than that of G. Bonhotei. 



Stridulating-organ consisting of about nine clavate plumose 

 bristles on the trochanter of the first leg and about three 

 similar bristles on the trochanter of the palpus. 



Measurements in millimetres. — Total length 18 ; carapace 

 9'5 ; width of carapace 8 ; length of first leg 34, second 32, 

 third 29, fourth 37 ; patella and tibia of first and fourth 12 ; 

 protarsus of fourth 10*5. 



Loc. San Domingo. 



Ann. f£' Mag. N. Hist. Ser. 7. Vol. xi. 7 



