Families, Genera and Species of British Spiders, etc. 441 



The author's two new genera will probably maintain their 

 ground, and the rest, with the exception of Oreonetides and 

 Centromeria, may now be considered as definitely established 

 in this country, where they have for some time been in use. 

 As already stated, criticism will centre not so much upon the 

 validity of the genera as upon the allocation of the species. 



;Mr. Hull in the same paper separates diluta Camb. from 

 Sintida Sim. (]). 241), making it the type of a new genus Rhab- 

 doria, which will also take rank. The discriminatory characters 

 are : — 



A. Outer margin fang gi-oove with five teeth, 



inner five. Cephalothorax very broad, 



narrowed towards eyes Gen. Siiitiila Sim. 



B. Outer margin fang groove with three 



teeth in $ and two in ^J, inner teeth 

 O. Cephalothorax rather long, not much 

 narrowed at caput Gen. Rhabduria Hull. 



The members of the Genus Microneta Menge as given in 



Cambridge's ' List of British and Irish Spiders,' 1900. naturally 



fall into four well-marked and compact sections. One of 



these, innotahiUs Camb., properly belongs to another genus, 



Svcdva Sim., and the others will probably in any future revision 



be raised to generic rank. One of the most characteristic of 



the latter Mr. Hull forms into a new genus, Agyncta. 



A. Cephalothorax broad oval, thorax nearly 



circular. Falccs short. Eyes small, 

 very closely grouped and not occupying 

 the whole width. Legs shorter . . . . Gen. Agyiieta Hull. 



B. Caphalothorax elongate oval, thorax 



much longer than broad. Falces long- 

 er and stouter. Eyes larger, not so 

 closely grouped and occupying the 

 whole width. Legs longer Gen. Microneta :\Ienge. 



THE FAMILIES, GENERA, AND SPECIES 

 OF BRITISH HARVESTMEN AND PSEUDO- 

 SCORPIONS.— I. Phalangidea. 

 TABLE A.— FAMILIES. 



A. Transverse folds behind the eye eminence, 



two : palpi with a terminal claw ; second 



pair of legs with maxillae Phal.\ngiid.\e 



B. Transverse folds behind the eye eminence, 



none : palpi without a terminal claw ; 

 second pair of legs without maxillae. 

 L Coxa; of legs free : cephalothorax not pro- 

 longed into a hood ; palpi long, at least 



twice the length of the body . . • • Nemastom.vtid.c. 

 n. Coxae of legs soldered to underside of 

 liody ; cephalothorax prolonged into a 

 hood ; palpi short, not equal the length 

 of the body Trogulid.c. 



1910 Dec. I. 



