i 4 8 THE LEECHES OF MINNESOTA 



Nervous system of 19- 3° 



Number of species of 4 



Reproductiv system of 20 



Sense organs of 14 



Varieties of medicinal 6, 7 



Limnatis 1 J 3 



Macrobdella 13, 79, IQ 6, no, 1 1 1 



decora 6, 13, 106, (IV, V ) 



habits of 109 



gigas 1 13, 1 17 



valdiviana 13, 113, 117 



Medicinal leech 6 



American 106 



European varieties of 7 



Habits of 7 



Metamere 10 



Metamerism IO 



Mouth l 7 



Nefridiopore J 9 



Nefridia x 9- 5° 



Nephelis 2I > 4° 



fervida I2 5> I2 7 



lateralis I21 



])unctata I21 



Nephelopsis I2 3 



obscura I2 3, (V, VI) 



habits of I2 5 



Nephridiopore l 9 



Nephridium l 9> 5° 



Nerve of Faivre 3^, 4 2 



stomatogastric 45> (^) 



Nervous system of leeclies 19, 36 



Placobdella pediculata 4° 



Notostomum io1 



Oesophagus See esofagus 



Ovaries 20 



Ozobranchus l 9 



Penis 20 



I 'liarynx See farynx 



