W. A. Harding 
155 
Glossosiphonia heteroclita, Linnaeus, 1761. 
Plate XIY, Figs. 18—21. Text Fig. 7 (p. 157). 
Synonymy and Literature : 
Un Ver 'plat et blanc, Trembley, 1744, p. 147, pi. vii, fig. 7 ; Ledermiiller, 1764, p. 165, 
pi. lxxxiv, figs, k—q. 
Hirudo heteroclita, Linnaeus, 1761, No. 2085 ; Weser, 1765, p. 44 ; Linnaeus, 1767, 
p. 1080; Turton, 1806, p. 70; Johnson, 1816, p. 34. 
Hirudo hyalina, O. F. Muller, 1774, p. 49; 0. F. Muller, 1776, p. 220; Gmelin, 1788, 
p. 3097 ; Bose, 1802, p. 256 ; Schrank, 1803, p. 163 ; Stewart, 1817, p. 357 ; 
Baer, 1827, p. 728; pi. xxxii, fig. 11. 
Hirudo papillosa, Braun, 1805, p. 64, pi. vii, figs. 7—10 (coloured). 
Hirudo tnoculata, Carena, 1820, p. 303, pi. xii, fig. 22 ; Carena, 1823, p. 334. 
Clepsine hyalina, Moquin-Tandon, 1826, p. 106; Muller, F., 1844 b, p. 27 ; Diesing, 
1850, p. 453. 
Clepsine carenae, Moquin-Tandon, 1826, p. 105, pi. iv, fig. 4; Diesing, 1850, p. 454. 
Glossobdella hyalina, de Blainville, 1827, p. 263 ; de Blainville, 1828, p. 565. 
Glossobdella trioculata, de Blainville, 1827, p. 267, pi. xxxvii, fig. 4. 
Glossobdella carenae, de Blainville, 1828, p. 565. 
Clepsina carenae, de Filippi, 1839, p. 6. 
Clepsina hyalina, Brightwell, 1842, p. 15, pi. i, figs. 18 and 19 (erroneously named C. 
co'mplanata ; fig. 20 represents, not C. hyalina, but C. complanata ); Thompson, 
1844, p. 437 (recorded from Ireland). 
Glossopora (?) hyalina, Johnston, 1846, p. 440. 
Glossiphonia heteroclita, Moquin-Tandon, 1846, p. 358, pi. xiii, figs. 1—6 (coloured); 
Johnston, 1865, p. 52 ; Castle, 1900 a, p. 42, pi. v and pi. viii, figs. 35—38 (com¬ 
plete description). 
Glossiphonia carenae, Moquin-Tandon, 1846, p. 362, pi. xiii, figs. 7—9 (coloured). 
Clepsine papillosa, Grube, 1851, p. 113. 
Glossiphonia hyalina, Thompson, 1856, p. 425 (occurrence in Ireland). 
Glossiphonia hyalina, Houghton, 1861, p. 33 et seq. ; Houghton, 1865, p. 82, pi. i, 
figs. 5 and 6 (coloured). 
Clepsine heteroclita, Whitman, 1878, p. 2 et seq. (development); Orley, 1886 ; Apfithy, 
1888 a, p. 154, pi. vi, fig. 3 (head region); Oka, 1894, p. 81 et seq. (sinus system, 
nephridia); Leuckart, 1894, p. 552, fig. 237 (head) and fig. 239 (sense organ); 
Scharff, 1898, p. 191 (occurrence in Ireland). 
Glossiphonia trioculata, R. Blanchard, 1893 b, p. 4. 
Glossosiphonia heteroclita, R. Blanchard, 1894 b, p. 26 (diagnosis); Johansson, 1909, 
p. 75, figs. 127, 128. 
Diagnosis. Body ovate-acuminate, much flattened, without papillae, 
of a clear and pellucid amber yellow colour. Minute brownish or blackish 
spots, which tend to group themselves into transverse striae upon the 
third ring of each somite, may be present on the dorsal surface. 
