DESCRIPTION OF PLATE A. 



I. Phalangium opilio Linn, male (upper side) ; a,a, falces ; b,b, 

 palpi (cut off) ; c, geminated tuberculous teeth below the 

 middle of the fore-margin of caput; d,d, lateral pores (see 

 p. 171, line 2 from top); e, eye-eminence; /, abdomen; g t 

 cephalothorax ; h,h, abdominal segments. 



2. Phalangium opilio Linn, male (under side) ; a,a, falces : b,b, 

 maxillae formed by basal joints of palpi ; c,c, maxillae of first 

 pair of legs ; d,d, ditto of second pair of legs ; e, epistoma ; 

 /,/,/,/, coxal joints of the legs ; f'f, first joints of palpi ; g, 

 labium; h, sternum (of which only the anterior extremity is 

 visible, the rest being concealed by the genital plate (p ) ; 

 k,k, approximate position of spiracular openings, which are 

 concealed by the coxse of the fourth pair of legs (f,f,)', m,m, 

 abdomen ; n, anal aperture ; 0,0,0,0,0, inferior segments of 

 abdomen ; p, genital plate. 



3. Phalangium opilio Linn, male, profile; a, eye-eminence; b, 

 palpus ; c, falx ; a, epistoma ; e, f, g, maxillae attached to 

 palpi and first two pairs of legs ; h,h,h,h, coxal joints of legs ; 

 Jc, genital plate ; m, upper segments of abdomen ; n, inferior 

 ditto. 



4. Phalangium opilio Linn, male, profile; a, penis. 



5. Penis of P. opilio; a, genital plate; o, sheath ; c, corpus; d, 

 glans. 



6. Phalangium parietinum Degeer, female, in profile ; a, ovi- 

 positor ; 6&, portion of ovipositor more enlarged. 



7. Oligolophus agrestis Meade, male and female in copula; a, 

 ovipositor (female) ; b, penis (male). 



8. Leg of a phalangid ; e, supernumerary joint between coxee and 

 femur ; d, femur ; c, genua ; b, tibia ; a, metatarsus ; /, 

 tarsus minutely subdivided. 



