168 PROCEEDINGS OF THE ACADEMY OF [PaRT I 



Figs. 55-57. — Cryptomonas ovata. 



55. Normal appearance, with starch grains lining the chromatophores, 

 and on the left the characteristic crystalloid bodies. 



56. A very young specimen, ovate. 



57. The "curvata" iorm, without starch or crystalloid bodies; on the right, 

 near the pharyngeal fossa, is the kinetonucleus. 



Figs. 58-61. — Astasia mob His. 



58. One of the large specimens. At the anterior end, the reservoir, with 

 the two rudimentary flagella, and beside it, the contractile vacuole. 



59. Nucleus. 



60. Division. 



61. A very young, flagellated individual. 

 Figs. 62, 63. — Evglena ■pseudo7nermis. 



62. The animalcule seen from the side (represented too broad, relatively 

 to the length). 



63. Details of the anterior portion. Reservoir and kinetonucleus; to the 

 right, the stigma; lower down, the contractile vesicle. Inside the 

 plasma, leucoplasts, and the nucleus with its two cylindrical prolonga- 

 tions. 



Figs. 64-67. — Trentonia flagellata. 



64. Normal appearance. 



65. Compressed body. 



66. An animalcule, which was compressed along the longitudinal axis, 

 showing radial setae (exploded trichocysts). 



67. a. A mucilage-bearing spherule, in a small protoplasmic vesicle. 

 67, b. Exploded spherule, with a mucilaginous granular cloud. 



