APPENDIX B 179 



PISCICOLA de Blainville 1818 (Harding, 1910; Meyer, 

 1940). Like Calliohdella except eyes 2 pairs, annuli 14, bursa 

 simple. 



*Piscicola geometra (L.). 20-50 mm long, with ocelli and 

 radiating marks on posterior sucker. Brackish as well as fresh 

 water, e.g. on Coitus scorpius and Pleiironectes flesus in Baltic 

 (Herter, 1935). 



Piscicola zebra Moore (1898). On lips of Petromyzon marinus. 

 Nova Scotia. 



''Piscicola''' rectangulata Levinsen. 20^0 mm long from gills 

 and body of Gadus in Arctic seas. Has been removed from this 

 genus (Moore and Meyer, 1951) but not yet assigned to a new one. 



PLATYBDELLA Malm 1863 (Johansson, 1898; Leigh- 

 Sharpe, 1916). Suckers discoid, eyes 0-3 pairs, abdomen rounded 

 and ill-defined, annuli 3 (6), coelom reduced without pulsatile 

 vesicles, dorsal, lateral or segmental lacunae, diverticula fused 

 with 5 fenestrae, testes 5 pairs. Only the first sp. listed below 

 has been fully described but about 7 others have been placed 

 tentatively in this inappropriately named genus. 



*Platybdella anarrhichae (Diesing). 20-30 mm long, eyes 0. 

 Gills and body of Anarrhichas lupus and A. minor. W. Sweden, 

 North Sea, Bergen, Iceland, Greenland. 



Platyhdella quadrioculata Malm (1863). Eyes 2, posterior 

 sucker not much broader than oral sucker. Labrus. W. Sweden, 

 Greenland. 



Platybdella buccalis Nigrelli (1946). Eyes 2, posterior sucker 

 twice as broad as oral sucker. Within mouth of Macrozoarces 

 americanus. E. coast U.S. 



Platybdella fabricii Malm. Eyes 3, posterior sucker twice as 

 broad as oral sucker, row of 12 protuberances on each side of 

 abdomen. Cottus scorpius. Greenland, Spitzbergen. 



Platybdella olriki Malm. Eyes 3, posterior sucker not much 

 broader than oral sucker. Hippoglossus vulgaris, Sclerocrangon, 

 Hyas. 



PODOBDELLA Diesing (1858). Imperfectly described. Like 

 a Trulliobdella reversed antero-posteriorly. 



