THE LEECHES OF MINNESOTA 149 



Piscicola 13, 99> I0 3 



geometra io 3 



punctata I0 3» (HI) 



habits of 105 



Pisidium 79 



Placobdella 43, 82, 84, 90 



catenigra 5o 



hollensis 65, 94, (II) 



habits of 9 6 



montifera 88, (I, II) 



habits of 89 



parasitica 21 (A), 35, 42, 50, 84, (I), 86, 87, 90-92, 94 



habits of 85 



pediculata 35 (C, D, E), 90, (II) 



Anatomy of , 29 



Anterior ganglionic mass of 43 (E) 



Description of 35 (Q 



Eyes of 47 



Glands of 49 



Habits of 33 



History of 31 



Methods of killing &c 31 



Nephridia of 50 (C) 



Central nervous system of 40 (E) 



Posterior ganglionic mass of 46 (E) 



Reproductiv organs of 47 (C, D) 



rugosa 21 (A), 35, 86, (I), 90 



habits of 87 



Proboscis 17 



Protoclepsine 96 



Protoclepsis 43, 96 



tessellata 43 



Rectum 18 



Relationship of leeches 21 



Reproductiv system 20 



Respiratory system l 9 



Rhyncobdellidse I 7 



Segmentation 9 



