INDEX. 



Page plate fg. 



Unio Poulsoni, 25 1 1 



t»niatus, 26 4 2 



trabalis. 27 3 5 



nebulosus, 28 3 7 



cor, 28 3 3 



caelatus, 29 3 4 



maculatus, 30 4 4 



vibei, 31 4 3 



Greenii, 32 4 1 



penitus, 33 5 1 



Masoni, 34 5 2 



delumbis, 35 5 3 



arctatus, 36 5 4 



pectorosus, - , , - 37 6 1 



rubellus, .... 38 6 2 



furvus, 39 6 3 



Raveneli, 39 6 4 



icterinus, 41 6 5 



tenebrosus, 42 7 1 



altilis, 43 2 1 



perovalis, . , . , 43 2 2 



prasinus, 44 3 1 



infucatus, 45 3 2 



oviformis, 46 3 6 



perovatus, 47 2 3 



