222 ANNIE it»i;tki{. 



Fig. 33. — Parasite with scattered chromidia. Blepharoplast 8li<^htly 

 posterior to and to the side of the nucleus. End of crop. Giemsa. 



Fig. 34. — Critliidia with large oval l)lei;haroplast. Stouiach. 

 Giemsa. 



Fig. 35. — Narrow parasite. Intestine. Giemsa. 



Figs. 36, 37. — Longer parasites with many chromidia. Stomach. 

 Iron-ha3matoxylin. 



Fig. 38. — Flagellate showing alveolar pi-otoplasm. nucleus and 

 Mepliaroplast almost in contact. Intestine. Thionin. x 2250 approxi- 

 mately. 



Fig. 3J>. — Tjong form. Nucleus with chromatin arranged in bars. 

 Oval ]>lepharoplast. Mcmhriine distinct. Intestine. Giemsa. 



Fig. 40. — Long parasite with thick flagellum. Myonemes present 

 on l)ody. Blepharoplast showing constriction, so about to divide. 

 Chronuitin of nucleus in large masses. Stomach. Delafield's htema- 

 toxyliu. 



Fig. 41. — Sm;ill aggregation-rosette, showing entanglement of large 

 and small flagellates. Stomach. Giemsa. 



Fig. 42. — Flagellate with rounded nucleus and posterior blepharoplast. 

 Basal granule near root of flagellum. Myonemes in membrane. 

 Intestine. Iron-ha-matoxylin. 



Fig. 43. — Large rosette. Many parasites sho^\^l aggregated around 

 a piece of debris. The flagella serve as points of attachment, therein 

 differing from a division-rosette. Common in stomach and intestine. 

 Delafield's luematoxylin. 



Figs. 44-56. — Stages in Division. 



Fig. 44. — Parasite showing constricted blepharoplast with clear area 

 around it. Chromatin in nucleiis aiTanged in masses at peripheiy. 

 Intestine. Thionin. X 2250 approximately. 



Fig. 45. — Stage similar to fig. 44. Well-marked myonemes on body 

 and membrane. Giemsa. X 2250 approximately. 



Fig. 46. — Parasite with both nucleus and blepharoplast constricted. 

 Flagellum beginning to split at base. Stomach. Delafield's hsematoxylin. 



Fig. 47. — Flagellate with anterior end of body, nucleus and blepharo- 

 plast all divided. Stouiach. Delafield's haematoxylin. 



Figs. 48, 49. — Somewhat rounded parasites ; bodies of daughter- forms 

 not yet diverging from one another. Stomach. Thionin. 



Fig. 50. — Daughter-organisms fomiing a V. Stomach. Giemsa. 



Figs. 51, 52. — Fui-ther stages in the divergence of the bodies of the 



