PLATE X'. 



Fig. 78, Biitrisus ferox. 



Fig. 79. B. ioncB. 



Fig. So. B. rifarius. 



Fig. 81. B. schaumii. 



Fig. 82. B. zephyriniis. 



Fig. 83. B. cicatricosus. 



Fig. 84. B. albionicus. 



Fig. 85. B. occidmis. 



Fig. 86. B. scabriceps. 



Fig. 87. B. lineaticollis. 



Fig. 88. B. frontalis. 



Fig. 89. B. globostts. 



Fig. 90. B. cephalotei. 



Fig. 91. B. triangulijcr. 



Fig. 92. i5. spretus. 



Fig. 93, a. Antennae of ^. devtirornis. 



Fig. 93, b. Antenna? of B. triangiiJifer. 



Fig. 93, c. Antenna; of B. nigricans. 



I Note. All the figures of Pselaphida; are highly magnified. For the 

 size of the several species the student must be guided bj the dimensions 

 quoted in the text. 



