EXPLANATION OF PLATE XXIL 



Atractis kachugac, sp. nov. 



Fig. 48. — a'. Anogenital region and spicules from the right side 

 X 750. (4i/i/). 

 ,j 49. — a'. Outline of tail from right side. X 150. (41/1). 



Physalopiera, sp. 



Larva from Bufo stomaticus. 

 Fig. 50.— X 75- 

 ,, 51. — Head. X 750, seen from the left side. 



Ascaris, sp. 

 Larva (L. 33 and 36). 

 Enc3^sted in the peritoneum of Wallago attoo, Bl. Schn 

 Fig. 52.— Head. X 2165. 

 ,, 53. — Head seen from the right side. X 2i6|. {^^. ii.). 

 ,, 54. —Outline of tail from the right side. X 2i6|. 



Ascaris, sp. 



Larva (L. 15). 



Free in the peritoneum of Waliago attoo. 



Fig. 55. — Outline of head. X 2i6§. Seen from the right side 

 obliquely slightly from D. 

 ,, 56. — Outline of tail seen from the right side. X 2i6f. 



Larva (L. 30). 



From intestine of Wallago attoo ^ Bl. Schn. 



Fig. 57. — Anterior portion of body. X 75. 

 ,, 58. — Head. X 1500. 

 ,, 59- — Opening of ventral gland. X 325. 

 ,, 60.— Tail. X 325. 



