June, 191 1.] EwING: NoTES ON PsEUDOSCORPIONS. 71 



Length : 2.30 mm. 



Chclifer muricattis from Austin, Tex. — Two specimens collected 

 by Professor Comstock in the spring of '03. 



These specimens certainly represent varieties of C. cancroides 

 Linn. Hagen was strongly of this opinion, and my examination of 

 these forms from Texas indicates clearly that they are transitional 

 between our commonest type of C. cancroides Linn, and C. scahri- 

 culus Simon from California, the latter which must also be regarded 

 as a variety of C. cancroides. 



Color: reddish brown, hand very dark. Tooth-like tubercles 

 only indicated. 



Movable digits of chelicerae slightly curved. Prongs of spinneret 

 almost wanting. 



A Specimen from New Mexico. — This was collected by E. J. 

 Oslar at Albuquerque, N. M., on Sept. 10, 1903. No situation given. 

 It may be regarded as belonging to the variety muricatus Say. 



Color : cephalothorax dark ; palpi a dark reddish brown, but 

 lighter than the cephalothorax; abdominal scutae and legs lighter 

 than the palpi. 



Tooth-like tubercles present on the cephalothorax, but only of a 

 medium size. They are present on the trochanters of the palpi and 

 here are moderately well developed, but are not present on the 

 femora. 



Movable fingers of the chelicerae but slightly curved. 



A California Specimen. — A single specimen from Stanford Uni- 

 versity represents Simon's scahricuJus, but is to be regarded as only 

 a variety of C. cancroides. 



Color : cephalothorax and palpi of a medium reddish brown. 



Pedipalps stout; fingers short, not longer than the somewhat 

 stout hand. 



Tooth-like tubercles only slightly indicated on the cephalothorax 

 and the trochanters of the palpi. 



Movable digit of the chelicera rather strongly curved, but not so 

 much so as in the case of the Iowa specimens. 



Length : 2.60 mm. 



Careful analysis of the preceding data shows that the following 

 variations of C. cancroides exist. 



