"1 



G-. 0. SAES. 



[No. 7. 



Fig. 3. The upmost of the terminal setae from the upper branch 

 of an antenna, magnified 220 diameters. 



- 4. Tail together with the adjoining part of the body, 



viewed from left side; magnified 89 diameters. 



- 5. One of the caudal claws, magnified 220 diameters. 



Figs. 6—7. Simocephalus Elizabeths, (King). 



- 6. Adult female with greatly developed ovaries and the 



matrix filled with embryos, from right side; magnified 

 56 diameters. 



- 7. Tail with adjoining part of body, from right side; mag- 



nified 89 diameters. 



Plate 3. 

 Macrothrix spinosa, King. 

 Fig. 1. Adult female with greatly developed ovaries and the 

 matrix empty, viewed from left side; magnified 110 

 diameters. 



- 2. Another female specimen with the matrix distended by 



numerous eggs, from above; same enlargement. 

 3. Female specimen with ephippium, from right side; mag- 

 nified 138 diameters. 



- 4. Tail with adjoining part of body, from left side; mag- 



nified 220 diameters. 



- 5 One of the terminal setae of an antenna; same enlarge- 



ment. 



- 6. Adult male viewed from right side; magnified 138 dia- 



meters. 



Plate 4. 

 Ilyocryptus longiremis, n. sp. 

 Fig. 1. Old female specimen with numerous embryos within the 

 matrix, viewed from left side; magnified 74 diameters. 

 2. Same form below. 



