166 
The British Leeches 
Hirudo nigra, abdomine plumbeo—the Horse-Leech, Hill, 1752, p. 16. 
Hirudo sanguisuga, Merret, 1667, p. 207: Bergman, 1757, pi. vi, figs. 3, 4; Linnaeus, 
1758, p. 649 ; Gisler, 1758, p. 95 ; Linnaeus, 1761, No. 2078; Muller, 1774, p. 38 ; 
Muller, 1776, p. 220 ; Barbut, 1783, p. 20, pi. ii, fig. 6 ; Gmelin, 1788, p. 3095 ; 
Bose, 1802, p. 246; Turton, 1806, p. 68; Turton, 1807, p. 129; Watson, 1812, 
p. 13 ; Pennant, 1812, p. 70 ; Johnson, 1816, p. 30 ; Stewart, 1817, p. 356 ; Cuvier, 
1817, p. 532; Carena, 1820, p. 286, pi. xi, figs. 7, 8, 12, 23, 25 and 26; Bruguiere, 
1824, p. 132, pi. li, figs. 3, 4 ; Audouin, 1825, p. 8 ; Derheims, 1825, pp. 9 and 19 ; 
Stark, 1828, p. 356 ; Templeton, 1836, p. 235; Bowerbank, 1845, p. 301, pi. 18 
(cocoon); Dalyell, 1853, p. 2, pi. iii, figs. 1—10 (coloured). 
Hirudo gulo , Braun, 1805, p. 12, pi. i, figs. 1—7 (coloured). 
Hirudo vorax, Johnson, 1816, p. 62 ; Pelletier et Huzard, 1825, p. 121. 
Hirudo sanguisorba, de Blainville (in Lamarck), 1818, p. 291 ; Fleming, 1822, p. 604 ; 
Milne-Edwards (in Lamarck), 1835, p. 521. 
Haemopis nigra, Savigny, 1820, p. 116 ; Brandt et Ratzeburg, 1829, pi. xxix, B. figs. 
12—17 (anatomy). 
Haemopis sanguisorba, Savigny, 1820, p. 115 ; Brightwell, 1842, p. 12 ; Quekett, 1843 
(not Diesing, 1850). 
Haemopis luctuosa, Savigny, 1822, p. 116. 
Haemopis lacertina, Savigny, 1822, p. 117. 
Hirudo carnivora, Brossat, 1822, p. 34 (?). 
Aidastama nigrescens, Moquin-Tandon, 1826, p. 124, pi. vi, fig. 3 (bad); Cuvier, 1836, 
p. 215 ; Williams, 1851, p. 238. 
Hirudo ( Pseudobdella ) nigra, de Blainville, 1827, p. 249. 
Hirudo ( Hippobdella ) sanguisuga, de Blainville, 1827, p. 254 ; Gervais, 1836, p. 638, 
pi. ccxi, fig. 4, a and d. 
Pseudobdella nigra, de Blainville, 1828, p. 560, pi. xxxv, fig. 1. 
Hippobdella sanguisorba, de Blainville, 1828, p. 561, pi. xxxv, fig. 2. 
Hirudo ( Pseudobdella ) vorax , Gervais, 1836, p. 628, pi. ccxi, figs. 6 and 6 a and b. 
Haemopis ornata, de Filippi, 1837, p. 25, fig. 14. 
Aviastoma gulo, Moquin-Tandon, 1846, p. 313, pi. v, figs. 1—6 (coloured); 
Chworostansky, 1886, p. 446 (genital organs); Apdthy, 1888 a; Apathy, 
1888 b; Apathy, 1889 a, p. 267 ; Graf, 1894 b. 
Haemopis vorax, de Filippi, 1837, p. 25 ; Leydig, 1849b, p. 16, pi. iii, fig. 4(anatomy); 
(not Moquin-Tandon, 1826 b, p. 108). 
Haemopsis vorax, Johnston, 1846, p. 442 ; Thompson, 1856, p. 427 (in Ireland). 
Haemopsis nigra, Johnston, 1846, p. 442. 
Haemopis sanguisuga, Hardy, 1850, p. 96; Hertwig, 1877, p. 2 etseq. (development); 
R. Blanchard, 1892 e, p. 3, figs. 1, 2 ; ibid., 1893 a, p. 25 ; ibid., 1893 b, p. 4 ; 
ibid., 1893 d, p. 92 (in Sweden) ; ibid., 1893 i, p. 3 (in Palestine) ; ibid., 1894 b, 
p. 48 ; Scharff, 1898, p. 193 (in Ireland) (not Moquin-Tandon, 1846, p. 318). 
Aulostomum gulo, Diesing, 1850, p. 461; Polonio, 1860; Schneider, 1880, pp. 19 and 
256. 
Aulacostomum gulo, Grube, 1851, p. 110; Grube, 1871, p. 97, pi. iii, fig. 7 (variety). 
Aulostomum italicum, Polonio, 1860. 
Aidostoma gido, Johnston, 1865, p. 46. 
Aulostoma nigra, Johnston, 1865, p. 46. 
