PHRYNID^. 



657 



(Fig. 632, a, female, natural size ; 6, male, natural size ; c, 

 penis, anterior and lateral view, enlarged) has been found from 

 northern New York to Washington. 

 When handled it emits a drop of 

 an odorous clear fluid. We have 

 found it frequently in Salem. 



P. ventricosum Wood (Fig. 633, 

 a, trochanter ; 6, femora ; c, mandi- 

 bles ; d, maxillary palpus, male? 

 natural size) is widely distributed 

 in the United States. Acanthocheir 

 is an eyeless genus with spiny palpi. 

 A. armata Tellkampf is found in 

 Mammoth Cave. In Gonyleptes the 

 cephalothorax is much enlarged, 

 and overhangs the abdomen. #. 

 ornatum Say (Fig. 634, male, a, 

 under surface ; 6, upper surface, 

 natural size ; c, penis) is found in 



the Southern States ; the species are quite numerous in South 

 America. 



Under the name of Archetarbus rotundatus (Fig. 635) Mr. 



Scudder describes a fossil Pedipalp, which seems to be "allied 

 a to the Phalangidce and to the 

 Phrynidce. In its fragmentary 

 state one can scarcely judge with 

 certainty of its exact relationship. 

 The arrangement of the legs ac- 

 cords well with both families. The 

 broad attachment of the thorax to 

 the abdomen is a Phalangidan char- 

 acteristic, while the size and shape 

 of the abdomen, the number of the 

 abdominal segments and the crowd- 

 ed state of the central portions of 



the basal ones, indicate closer affinities to the Phrynidce." 



PHKTNID^E Sundeval. Whip- scorpions. In this group the 

 42 



Fig. 634. 



