PHRYNID^. 



657 



{Fig. 632, a, female, natural size ; &, 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, 

 %, 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 spin}^ palpi. 

 A. armata Tellkampf is found in 

 Mammoth Cave. In Gonyleptes the 

 cephalothorax is much enlarged, 

 and overhangs the abdomen. G. 

 ornatum Say (Fig. 634, male, a, 

 under surface ; b, upper surface, 

 natural size ; c, penis) is found in 

 the Southern States ; the species are quite numerous in South 

 America. 



Fig. G33. 



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



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

 a to the Phalangidm and to the 

 Phrynidca. 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 P/irynt doe." 



Phrynid^e Sundeval. Whip- scorpions. In this group the 

 42 



Fig. 634. 



