EXPLAN^ATIOS OF THE PIATES. 663 



Plate XXII. 



Pig. A. I^lumnus pulcher, adult {J , nat. size, a, larger chela, 



B. Pilummis semilanatus, adult c?j X 2. b, larger chela, 



X ^' 



C. Pilumnus lahyrintMcus, X 3. c, outer view of chela, X 3. 



Plate XXIII. 



Pig. A. Inferior view of the froatal, antennal, and part of the buccal 

 regions of Cryptoeosloma Jimbriatum, $ , x 8. 



B. Achelous granulatus, var. unispmosvjs, adult (J, x 1|. 



6, inferior view of the antenna and part of the orbit of 

 the same specimen, x 4. 



C. Goniosoma spiniferum, cJ , X 2. c, inferior view of the 



antenna and part of the orbit, x 4. 



Plate XXIV. 

 Pig. A. Camptqplaxi coppingeri, x 4, a, the frontal and antennal 

 regions, epistome, and palate, viewed from below, magni- 

 fied. 



B. Fsmdorhombila vestita, var. sexdentata, d' , x 3, 6, frontal 



and orbital regions ; V, outer view of chela, X 3. 



C. PsmdorTmnbilci, mloftifrons, var. austrdlierms, $ , x 3. 



c, frontal and orbital region; c', outer view of chela, 

 X 3. 



Plate XXY, 



Pig. A. Macrophthalmus pwnctulatus, cJ , x 4. a, outer view of 

 chela, X 4. 



B. Ceratoplax ? areuata, x 3. h, orbital region, showing the 



structure of the antennae and their position in the orbits, 

 &c. ; V, postabdomen of the male, X 4 ; h", outer view of 

 chela, X 4. 



C. Ceratoplax'i Icevis, x 4. c, orbital region, showiiig the form 



of the eye-peduncles and position of the antennae ; c', outer 

 view of chela, x 4. 



