EXPLANATION OF THE PLATES. 



The Plates of the Alpheidae have been drawn by Mr. J. F. Obbes of Apeldoorn under my super- 

 vision, with the exception of the following that have been drawn by myself: 



Ogyris Sibogae Synalpheus streptodactyloides 



Automate sp. Alplieus parvus 



Automate anacanthopus Alplieus Philoctetes 



Athanas parvus Alplieus tenuipes 



Athanas tenuipes Alplieus leptochiroides. 



