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EXPLANATION OF PLATES. 
Pia DE 2: 
Full grown male specimen of Astylosternus robustus (Blgr.), dorsal view. 
PLATE 2. 
The same specimen, seen from the side. 
PLATE 3. 
The same, ventral view. 
PLATE 4. 
Fuil grown male specimen with very small appendages. 
PLATE 5. 
Female specimen, showing scattered tubercles on the back. 
