48 ON NEW AND RARE ARACHNIDS. 



Fam. OXYOPID^E. 



Oxyopes heterophthalmus, Latr. 



Adults of both sexes were found by Dr. Jackson near 

 Mark Ash, in the New Forest, at the beginning of June, 

 1910. These are the first that have been recorded in 

 Great Britain in the adult state. 



PHALANGIDEA. 



Selerosoma Romanum, L. Koch. 



Several immature examples were found by W. 

 and A., on Blox worth Heath in August, 1910. They all 

 showed exactly the same character and development of 

 spiny armature as shown by adults of the same species. 

 This appears to prove their specific difference from an 

 allied species (S. quadridentatum, Cuvier), of which it has 

 been conjectured to be the immature form. 



Selerosoma quadridentatum, Cuvier. 



Several examples of this species were found at the same 

 time and place as those of 8. Romanum, L. Koch, men- 

 tioned above. 



Oligolophus Meadii, Cambr. 



Examples of this species were found on Bloxworth 

 Heath by W. A. P.-C., in August, 1910, but all immature. 

 It is curious how persistently this very distinct little 

 species appears to secrete itself from observation in the 

 adult state. 



