APPENDIX B 181 



STIBAROBDELLA Leigh-Sharpe 1925 (Harant 1929). Like 

 Pontobdella, with which this should perhaps be united. One sp. 

 from Pacific. 



TRACHELOBDELLA Diesing 1850 { = Scorpaenobdella Saint- 

 Loup, 1886; Apathy, 1888; Blanchard, 1894; Oka, 1910 and 1927, 

 Selensky, 1915; Dogiel and Bychowsky, 1934; Ingram, 1957). 

 Like Calliobdella except posterior sucker fairly small, deeply 

 cupped and facing posteriorly, abdomen more flattened and so 

 more distinct from trachelosome, bursa without muscular organ. 

 About 12 spp. 



Trachelobdella lubrica (Grube). 20-30 mm long, yellow or 

 olive-green with white spots, abdomen 1 -5 X breadth of posterior 

 sucker which has radiating markings, trachelosome with 4 pairs 

 of lateral vesicles which are non-pulsatile. From a variety of 

 teleosts. Mediterranean and perhaps Atlantic coasts of Europe. 



Trachelobdella nigra (Apathy). Black, contracted abdomen 

 2-3 X breadth of posterior sucker. Naples. 



TRULLIOBDELLA Brinkman 1948. Suckers small but strong, 

 eyes 9 pairs, posterior sucker with ring of ocelli, abdomen flattened 

 and trachelosome narrow like blade and handle of a paddle, annuli 3 

 (6), pulsatile vesicles and diverticula absent, testes 5 pairs. One sp. 

 from South Georgia. 



Host List 



This can serve only as a preliminary guide. It is divided 

 regionally to help when leeches are found apart from hosts. The 

 aim has been no more than to cover the North Atlantic forms, but 

 a few records from elsewhere have been included. Many of the 

 invertebrates may serve merely as substrata for cocoons, but some 

 are truly parasitized (Meyer and Barden 1955). 



Arctic Seas 



Autrum 1936; Borovitzkaia 1949; Bruun 1938; Johansson 1898; 

 Levinsen 1882; Malm 1863; Meyer and Barden 1955; Moore 

 1940; Moore and Meyer 1951; Remy 1928; Selensky 1914, 1915, 

 1927; de Silva and Kabata 1961; Wesenberg-Lund 1926. 



