EXPLANATION OF PLATE XXIV. 



Potamon [Potamon) broumeanum, sp. nov. 

 Figs. 1. 2. — Dorsal and frontal views of a male 52-3 mm. in breadtli. 



Potamon {Potamon) acanthicum, sp. nov. 

 Figs. .3, 4. — Dorsal and frontal views of a female 32-3 mm. in breadth. 



Potamon (Potamon) curtohafes, sp. nov. 

 Figs. 5, 6. — Dorsal and frontal views of a male 44-8 mm. in breadth. 



