ANALYTICAL INDEX. 
CHAPTER IL.—continued. 
Characteristics of the Horse Leech and Medicinal Leech, 
M. M. Tandon, 
Food of the Horse Leech, 
Leeches readily injured by excess in feedings 
The Horse Leech of easy preservation, 
Plate III. explained, 
§ 6. Hirupo mepicrnauis,—The Medicinal Leech, 
Sid 
Mr Brightwell, 
Difference between this and the Heres Tesch: 
Distinguishing marks, 
Alike restless and voracious, 
Becomes torpid on exposure to cold, 
Indigenous in different parts of Scotland, 
John Burn Murdoch, Esq., of Gartincaber, 
Dr Fleming—Leeches bred by an apothecary in Cupar, 
M. Tandon, 
Imported chiefly fia Bweden, 
Trade in Leeches between France and Africa, 
Plate III. explained, 
Hirvupo compranata,—Gilossipora tuberculata,—Dr James Rawlins 
Johnson, 
Description of the flattened Teco 
Natural abode of this species in lakes or ponds, 
Feeds on both animal and vegetable substances, ° 
Its attack on the Helix peregra, its natural prey, described, 
Season of breeding, March and April, 
Process described, 
Resumé of the history of the tech, 
Plate IV. explained, 
§ 8 Hmuno sragnatis,—The Pond Leech, 
Sigs 
Widely diffused throughout Scotland, 
Smaller than the former, 
Characteristic differences, 5 
Food—vegetable matter, fish, and larva, 
Propagation, 
Plate LV. explained, 
Hirvpo ressecnara,—The Chequered Leech, 
Difficulty of identifying this species, 
Reason why, 
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