Families, Genera and Species of British Spiders, etc. 4J9 



A \-aluable and comprehensive contribution to the subject 

 is that of the Re\-. J. E. Hull. ' The Genus Tmeticiis and some 

 Allied Genera,' in the ' Trans, of the Nat. Hist. Soc. of Nor- 

 thumberland, Durham and Newcastle-upon-Tyne,' New Series. 

 Vol. HI., part 3, pp. 573-586 (1910). His arrangement is 

 based in great measure upon the number, size and position of 

 the teeth with which the outer and inner margins of the fang 

 groove are armed. Mr. Hull kindly sent me a copy of his 

 interesting paper, and from it the following table has been 



compiled : — 



TABLE OE THE TMETICINL 



A. Outer margin of fang groove with three 

 teeth, inner O. Maxillae quadrate. 

 Labium very short and broad. Femora 

 of legs I. at least with a spine or spines. 

 \nterior eyes very unequal in size. 



I. Tibia; of legs without a double row of 



spines beneath. Metatarsi I. at most 

 one feeble spine, the rest .spineless. 

 Dorsal tibial spines of posterior legs 

 larger and stronger than those on the 

 anterior legs. Falces granulate . . .. Gen. Ccntviimerus Dci\\\. 



II. Tibia; of legs with two rows of spines 



beneath. jNIetatarsi IV. with several 

 spines. Dorsal tibial spines of equal 

 size and strength. Falces not granu- 

 late . . Sub-Gen. Centronievia Strand 



B Outer margin of fang groove with four or 

 live teeth. INIaxillae oblong. Labium 

 comparatively long. All femora spine- 

 less. Anterior eyes not so greatly un- 

 equal in size. 



I. Outer margin of fang groove with four 



teeth. 



1. Metatarsi spined. Maxillae much 



longer than wide. Tibiae of legs 

 • I with lateral and inferior spines. 



Fourth tooth of fang groove least, 

 ^s without a falcal tuber . . . . Gen. Meugi'a F.O.P. Cb. 



2. Metatarsi unspined. Maxillae a little 



longer than wide. Tibia; of legs 

 I without lateral spines. Fourth 



tooth largest. ^s with a cen- 

 trally placed falcal tuber . . . . Gen. Tmeticits Menge. 



II. Outer margin of fang groove with live 



teeth. 

 I. Inner margin of fang groove with 

 three or four teeth. Tibia; of all legs 

 with two dorsal spines. Tibia; I. 

 generally with a lateral spine. 

 {a) Falces tumid at base, granulate, 

 projecting beyond clypeus. Lab- 

 ium reaching to the middle of the 

 maxillae. qS with a falcal tuber 

 not centrally placed Gen. Macrargus Dahl. 



1910 Dec. I. 



