PLATE V. 



FIG. 3'2. Oriana wiltsoin, Leiper and Atkinson; ex Balaenoplcra borealix. Head, anterior surface, showing 

 four round suckers ; no rostellum. 



Fin. 33. 0. irllxnn!. Head seen laterally, showing mode of attachment of slender neck. 



FIG. 34. 0. i/'ilxinii. Segments. 



FIG. 35. Ti'triirli/in-Jnix sp., ex Lcpldopus caudatuts. Larva removed from cyst. 



FIG. 36. AbotJtros mn-liiti-lns, Welch, ex Carcltarias, sp. Complete specimen ; only three of the four 

 rostella are shown. 



FIG. 37. Diboihriocephalus cimtxi, ex Leptonyehotes weddelli. Complete strobila. 



FIG. 38. D. coats!. Mature segment ; f, cloaca ; d, uterine pore ; c, uterus, containing eggs ; /, testes. 



FIG. 39. Plerocercoid larva, ex Trcwatomus bernacckii. 



F IG . 40. DibotJiriocephalits lasltlcyi, Leiper and Atkinson ; ex L&ptonychotes ti-rildiili. Head. 



FIG. 41. D. lasltlcyi. Segments ; lettering as in Fig. 38. 



FIG. 42. Plerocercoid larva, ex Trematomus bernacchii. 



