APPENDIX B 175 



2 pairs. On Cottus huhalis and Blennius pholis. Common at Roscoff 

 (Brumpt, 1900). 



CARCINOBDELLA Oka 1910 (1927; 1933). Suckers discoid 

 (type species has mouth situated as in Notostomohdella and 

 clitellum swollen), eyes 0-3 pairs, abdomen rounded, annuli 14, 

 diverticula fused, testes 6 pairs. Three spp. off Japan. 



CRANGONOBDELLA Selensky 1914; 1915 (Borovitzkaia, 

 1949). Resembling Platyhdella but with annuli 12 and copulatory 

 zone with vector tissue. Several spp. from Russian seas. 



Crangonohdella murmanica Selensky. 20 mm long, eyes 3 pairs. 

 On Sclerocrangon horeas. White Sea, E. Greenland. 



CRYOBDELLA Harding 1922 (Brinkmann, 1948). Like 

 Platyhdella (Moore, 1938) except posterior sucker has finely 

 serrated margin and is often bent dorsally, testes 4 pairs. One 

 sp. from Antarctic. 



CRYOBDELLINA Brinkmann 1948. Like Platyhdella but 

 eyes 9 pairs, ganglia 18, testes 4 pairs. One sp. from Antarctic. 



C YMA TOBRANCHUS. The promised description (Selensky, 

 1931) appears to have been forestalled by the author's death. 

 The species referred to seems never to have been adequately 

 described. 



CYRILLOBDELLA Leigh-Sharpe 1933. Like Trachelohdella 

 but 8 pairs of pulsatile vesicles. Single specimen incompletely 

 described. 



Cyrillohdella alcihiades Leigh-Sharpe. 8 mm long. From Sargus 

 annularis. Mediterranean. 



GANYMEDEBDELLA Leigh-Sharpe 1915. Anterior sucker 

 huge, eyes 0, posterior sucker small, abdomen flattened and very 

 broad, annuli 1, pulsatile vesicles 3 pairs, diverticula separate, 

 testes 6 pairs. 



*Ganymedehdella cratere Leigh-Sharpe. 8 mm long. From 

 cloacal papilla of Callionymus. North of Scotland. 



HEMIBDELLA Selensky 1931. Suckers small, eyes 0, abdomen 

 rounded, annuli 12, coelom typical but without vesicles, diverticula 

 fused, testes 5 pairs, copulatory zone. 



