50 
Psyche 
[Mar. 
margin weakly concave and continuous witli that of the 
pars basalis ; length of pars tibialis measured along the 
extensor side 0.91 mm., depth 0.28 mm. ; entire femur 1.16 
mm. in length; tibia weakly S-sliaped, length 0.75 mm., 
depth 0.18 mm.; both tarsal podomeres subcylindrical ; 
length of metatarsus 0.275 mml depth 0.135 mm. ; telo- 
tarsus 0.28 mm. long, depth 0.13 mm. 
Genital complex simple, opercula little differentiated; 
anterior operculum with eight setae, chiefly along the 
medial portion of the posterior margin; posterior opercu- 
lum with nine marginal setae; cribiform plates relatively 
large ; two median plates with one located anterior to the 
other, the posterior one the smaller; lateral plates sub- 
equal in size to the larger of the median plates. 
Type locality. A single specimen, the female holotype, 
in a collection taken by Dr. P. J. Darlington in November, 
1931, on the Margaret River, Western Australia. 
Remarks. The present species may be separated from 
other members of the subgenus Maorigarypus , except S. 
niger , by the reduced number of tactile setae on the fixed 
chelal finger and by the presence of two tactile setae on 
the movable finger. From S. niger, S. magnus may be 
separated by the larger size of the body and appendicular 
podomeres, differences in shape of the palpal tibia, and 
differences in the nature of the carapacal eyes and the 
teeth of the chelal fingers, as well as other specifically 
significant characteristics. 
Synsphyronus (Synsphyronus) callus sp. nov. 
Figures 13-15 
Female. Description based on two individuals, the 
holotype and one female paratype. Measurements of the 
paratype are given in parentheses immediately after the 
corresponding measurements for the holotype whenever 
the two show significant difference. Body ovate; body, 
carapace, and legs light to moderately brown; palps 
deeper brown in color ; sculpturing as typical in members 
of the genus ; anterior legs somewhat stout, posterior legs 
relatively more slender ; body 3.3 (3.25) mm. long. Cara- 
pace as usual in the genus ; eyes of each side separated by 
