1947] Pseudoscorpions 45 
ford Univ. Publ., Univ. Ser., Biol. Sci., 7(1) : 135, 153, 155, 
208, 215, 228 (figs.). 
Synsphyronus Chamberlin + Synsphyronidee Beier + 
Mao rig ary pus Chamberlin, Beier, 1932, Das Tierreich, 
57: 226, 238. 
Synsphyronus emend., Chamberlin, 1943, Ann. Ent. 
Soc. Amer., 36 : 488, 489. 
Genus emendatus. On studying in detail the new spe- 
cies described below, it becomes obvious that the species 
belong to the genus Synsphyronus in spite of the presence 
of seven, instead of eight or nine, tactile setae on the fixed 
finger of the palpal chela. Since Chamberlin (1943) has 
shown that the variable number of tactile setae is not a 
useful diagnostic character in this genus, there is no justi- 
fication for the erection of a new genus. As a result, the 
genus Synsphyronus is hereby emended to include forms 
that have seven to nine tactile setae on the fixed chelal 
finger. 
The presence of seven setae on the fixed chelal finger 
indicates relationship to the genus Anagarypus Cham- 
berlin, 1930. However, the nature of the vestitural setae 
of the palps and the position of tactile seta est of the fixed 
chelal finger preclude assignment of the present three 
species to the genus Anagarypus. 
Synsphyronus (Maorigarypus) niger sp. nov. 
Figures 9, 10 
Male. Body, legs, and clielicerae brown in color ; palpi 
dark reddish brown ; sculpturing of body and appendages 
as in the genus ; length of body 3.6 mm. Carapace as in 
the genus ; eyes of each side separated by about the lesser 
diameter of the anterior eye ; carapacal furrows not evi- 
dent ; posterior margin with four setae ; length of carapace 
1 mm., greatest width across the posterior margin and 
equal to 1.1 mm., ocular width about 0.6 mm. Tergite 1 
with six setae; each half of tergite 2 and tergite 3 with 
three setae, more posterior tergites with four or five setae 
on each half ; tergal setae subclavate to clavate. Sternites 
with setae acuminate to terminally truncate ; setae similar 
to those of the tergites in number and arrangement ; con- 
