30. A. (g. lat. ) hemibarbi Achmerow *47. 

 *31. Protancyrocephalus strelkowi 



Bychowsky *48. 



*32. Ancylodiscoides siluri (Zandt) 49. 



*33. A. vistulensis (Siwak) 



34. A. various Achmerow *50. 



35. A, strelkowi Achmerow 



36. Bychowskyella pseudobagri *51. 



Achmerow *52. 



*37. Diplectanum aculeatum Parona 



and Perugia *53. 



*38. D. similis B ychowsky 

 *39. Heteroncholeidus buschkieli *54. 



Bychowsky *55. 



*40. Lamellodiscus elegans 



Bychowsky *56. 



*41. L. fraternus Bychowsky 57. 



*42. Calceostomella inerme *58. 



(Parona and Perugia) *59. 



*43. Tetraonchus monenteron 60. 



(Wagener) *6l. 



*44. Tetraonchoides paradoxus *62. 



Bychowsky 

 *45. Nitzschia sturionis (Abild- 



gaard). 

 *46. Benedenia derzhavini (Lajman) 



Polystoma integerrimum 



Froelich 

 P. ozaki Price 

 Neopoly stoma palpebrae 



Strelkow 

 Diclybothrium armatum 



Leuckart 

 Mazocraes alosae Hermann 



Qctostoma scombri, 



Beneden and Hesse 

 Diclidophora denticulata 



(Olsson) 

 Discocotyle sagittata (Leuckart) 

 Diplozoon paradoxum Nord- 



mann 

 Microcotyle mugilis Vogt 

 M. pomatomi Goto 

 M. gotoi Yamaguti 

 M. sebastis Goto 

 Axine belones Abildgaard 

 Axine sp. I 

 Axine sp. II 



p. 95 



Altogether , in this fashion we dispose of the data about the 

 development of 29 genera (75 species) related to the following 13 families: 

 Dactylogyridae (Dactylogyrinae--Acolpenteron Fischthal and Allison, 

 Dactylogyrus Diesing, Dogielius Bychowsky; Ancyrocephalinae- -Ancyro- 

 cephalus Creplin, Protancyrocephalus Bychowsky, Ancylodiscoides Yama- 

 guti, By chowskiella Achmerow, Heteronchocleidus Bychowsky), Diplectanidae 

 (Diplectanum Diesing, Lamellodiscus Johnston and Tiegs), Calceostomatidae 

 ( Calceostomella Beneden), Tetraonchidae ( Tetraonchus Diesing), Tetra- 

 onchoididae (Tetraonchoides Bychowsky), Capsalidae (Benedeniinae-- 

 Benedenia Diesing, Nltzschiinae Nitzschia Baer), Polys torn atidae (Polystoma ) Zeder, 

 Polystomoides Ward, Neopolystoma Price , Diplorchis Ozaki), Sphyra- 

 nuridae (Sphyranura Wright and MacCallum), Diclybothridae ( Diclybothrium 

 Leuckart), Mazocraeidae (Mazocraes Hermann, Qctostoma Otto) Diclido- 

 phoridae ( Diclidophora Diesing), Discocotylidae ( Discocotyle Diesing, 

 Diplozoon Nordmann), Microcotylidae (Microcotyle Beneden and Hesse, 

 Axine Abildgaard, Diplasiocotyle Sanders). 



-^iC^^ 



96 



