HIRUDINEA. 
Verm. 43 
Distribution. 
Lapland, Acanthobdella , Poppius (333). 
Scandinavia, 14 spp., Hansson (169). 
Sweden, n. sp., Livanow (244). 
Russia, Lake Baikal, n. spp., Livanow (244). 
Scotland, parasites of fishes, Scott (383). 
France, n. sp., Livanow (244). 
Bohemia, from the Elbe, Fric & Yavra (133). 
Porto Rico, 2 n. spp. and 1 n. gen., Moore (296a). 
Systematic. 
Hirudinea , movements of undulation and locomotion, Bohn, Bull. Mus. 
Paris vii, pp. 404-411 ; ciliated phagocytes, Cuenot, Arch. Zool. exp. 
(3) x, No. 1, p. 92 ; Scandinavia, 14 spp., Hansson, Ofv. Ak. Forh. 
lviii, pp. 732-736. 
Leech, general anatomy, Beddard, Enc. Brit, xxx, pp. 181 & 182, 3 figg. 
Acanthobdella in Lapland, Poppius, Medd. Soc. Faun. Fenn. xxiv, p. 40. 
Branchellion, histology of light sensory cells, Apathy, Verh. Congr. Zool. 
v, Berlin 1901, pp. 707-728, 2 pis. 
Branchiobdella parasita , musculature, Schhidt, Nachr. Ges. Gottingen 
1902, pp. 284-290. 
Clepsine sexoculata , embryology, Burger, Zeitschr. wiss. Zool. lxxii, pp. 
525-544, pis. xxx-xxxii. 
Diplobdella n. g. for D. antellarum , n. sp., Porto Rico, anatomy, Moore, 
Bull. U. S. Fish Comm. 1900, ii, p. 219, pi. xiii. 
Glossiphonidce , blood vascular system, Oka, Annot. zool. Japon. iv, pp. 
49-60, 5 text-figg. 
Gnathobdellidce, blood vascular system, Oka, t. c. pp. 49-60, 5 text-figg. 
Hcementeria costata , fertilization, Kowalewsky, Mem. Ac. St Petersb. (8) 
xi, pp. 1-13 (14-19). 
Hemiclepsis, genus revised, synonymy, composition and characters, 
Livanow, Zool. Jahrb. Syst. xvii, pp. 329-334, pi. xiii. 
Herpobdellidce, blood vascular system, Oka, Annot. zool. Japon. iv, pp. 
49-60, 5 text-figg. 
Hirudo , histology of light sensory cells, Apathy, Yerh. Congr. Zool. v, 
Berlin 1901, pp. 707-728, 2 pis.; H. medicinalu , topography of organs 
in typical segments, Allen, Biol. Bull, iii, pp. 161-164, 1 text-fig. ; 
histology, Schneider, Lehrbuch vergleich. Hist. Jena 1902, pp. 200, 
426-443, figg. 256, 393-400 ; alimentary system, Spiess, Arch. Sci. 
Nat. xiv, pp. 548-552. 
Hirudinaria blanchardi , Porto Rico, structure, Moore, Bull. U. S. Fish 
Comm. 1900, p. 214, pi. xii, n. sp. 
Ichtkyobdellidce, blood vascular system, Oka, Annot. zool. Japon., pp. 
49-60, 5 text-figg. 
Pontobdella , histology of sensory cells (“light cells”), Apathy, Yerh. Congr. 
Zool. v, Berlin 1901, pp. 707-728, 2 pis. 
Protoclepsis n. g. [ = l Protoclepsine Moore] for P. meyeri , n. sp., Russia, 
Sweden, France, p. 345, P. garjaewi , n. sp., p. 346, P. tessellatoides , 
n. sp., Lake Baikal, p. 349, pi. xiii, Livanow, Zool. Jahrb. Syst. xvii. 
P. tessellata ( = Hirudo Braun), P. mollissima ( = Clepsine), Livanow, t. c. 
pp. 348-353. 
Pseudobranchellion , histology of light sensory cells, Apathy, Yerh. Congr. 
Zool. v, Berlin 1901, pp. 707-728, 2 pis. 
Trachelobdetta spp. in North Sea fishes, Scott, Rep. Fish. Board Scotland 
iii, pp. 137-139. 
