136 H. WALLIS KEW ON PSEUDOSCORPION-FAUNA. 



2. Chelifer. 



11. Chelifer (Chelifer) Latreillii Leach, 1817. 



12. Chelifer (Chelifer) cancroides (Linn., 1758). 



3. Withius. 



13. Chelifer (Withius) subruber Sim., 1879. 



Cheiridium. 



1. Cheiridium museorum (Leach, 1817). 



II. Hemictenodactyli. 



OBISnDAE 



Obisium. 



1. Ideoroncus. 



1. Obisium (Ideoroncus) Cambridgii (L. Koch, 1873). 



2. Roncus. 



2. Obisium (Roncus) lubricum (L. Koch, 1873). 



3. Obisium. 



3. Obisium (Obisium) museorum Leach, 1817. 



4. Obisium (Obisium) Carpenteri Kew, 1910. 



5. Obisium (Obisium) maritimum Leach, 1817. 



CHTHONIIDAE. 



Chthonius. 



1. Chthonius Halberti Kew, 1916. 



2. Chthonius Rayi L. Koch, 1873. 



3. Chthonius orthodactylus (Leach, 1817). 



4. Chthonius tenuis L. Koch, 1873. 



5. Chthonius tetrachelatus (Preys., 1790). 



Journ. Qiiekett Microscopical Club, Ser. 2, Vol. XIII., No. 79, November 1916. 



