Leech Small 241×320 Medium 482×640 Large 772×1024 Download Tiff Original 1809×2400 | (4.2 MB) Description Leeches are characterized by the fact that they have no lateral appendages, but are furnished with a sucker or disc at one end or at both extremeties. This is the anterior extremity showing the sucker. Keywords Annelids, Hirudinae, leech, medicinal leeches Galleries Worms Source: H. Alleyne Nicholson, An Introductory Text-book of Zoology(Edinburgh:William Blackwood and Sons, 1971) 66 Courtesy the private collection of Roy Winkelman
