PLATE 31.— Infusoria. 



6. 



7. 



8. 



9. 



10 < 



11 

 12 

 13 

 14 

 15 



16 



Figure 



1. Euglena pyrum, E. 



2. Euglena viridis, E. a, b, in different 



states of contraction and extension. 



3. Euglena longicauda, E. (Phacus longi- 



cauda, D.), with the body twisted. 

 Fig. 63, the same, after Duj. ; the 

 body flat. 



4. Euglena acus, E., undergoing longitu- 



dinal division. 



5. Euplotes patella, D. a, under view ; 

 b, lateral view. 



Euplotes vannus, E., under view. 



Gastrochata fissa, I). 



Glaucoma scintillans, E. 



Peridinium cinctum, E. 



, b. Glenodinium cinctum, E. ; 10 c (be- 

 tween figs. 49 & 50), Glenodinium 

 apiculatum, E. 



Peridinium fuscum, E. 



Peridinium tripos, E. 



Peridinium fusus, E . 



Glenomorum tingens, E. 



Gromiajluviatilis, I)., with its expan- 

 sions extended. 



Trichodina pediculus, E. a, side view ; 

 b, under view. 



17. Heteronema marina, D. 



18. Himantophorus charon, E., under view. 



19. Himantophorus charon, E., side view. 



20. Hexamita nodulosa, D. 



21. Holophrya brunnea, D. 



22. Holophrya ovum, E. 



23. Ichthydium podura, E. 



24. Clicetonotus lams, E. 



25. Colpoda cucullus, E. 



26. Kerona pustidata, D, 

 E.). 



Kerona mytilus, D. (Stylonichia m., E.), 



under view. 

 Kerona mytilus, D. (Stylonichia m., E.), 



side view. 



29. Stylonichia histrio, E., under view. 



30. Stylonichia hmceolata,~E. a, under view; 



b, side view. 



31. Koyidylostoma patens, D., under view. 



32. Kondylostoma jnifens, B., half side view. 



33. Truchelocerca viridis, E. 



34. Amphileptus papillosus, E. 



35. Lagenella euchlora, E. 



36. C'ryptomonas (Lagenella, E.) injlata, 1). 



37. Leucophrys striata, D. 



38. Leucophrys patida,~E. a, dorsal, b, ven- 



tral surface. 



(Stylonichia p., 



27. 

 28. 



Figure 



39. Loxodes rostrum, E. (Pelecida rostrum, 



D.). 



40. Loxodes dentatus, D. 



41. Loxodes bursaria, E., under view. 



42. Loxophyllum (Amphileptus, E.) melea- 



gris, D. «, dorsal view; 6, anterior 

 portion twisted. 



43. a, Microglena punctifera, E. ; b, M. 



monadina, E. 



44. a. Monas lens, D. ; b, the same (?) with 



two anterior cilia ; e, M. attenuata, D. 



45. Nassida elegans, E. ; 6, teeth. 



46. Nassula aurea, E. 



47. Opalina (Bursaria, E.) ranarum, Purk. 



and Val. 



48. Ophrydium versatile, E., portion expan- 



ded by compression. 



49. Ophrydium versatile, E., marginal por- 



tion, in the natural state. 



50. Ophrydium versatile, E., isolated body. 



51. Ophryoglena atra, E. 



52. Oxytricha pellionella, D. 



53. Oxytricha gibba, F., side view. 



54. Oxyrrhis marina, D. 



55. Panophrys chrysalis, D. 



56. Paramecium aurelia, E., dorsal view. 



57. Paramecium aurelia, E., side view. 



58. Pantotrichum lagenula, E. 



59. Peranema globuiosa, D. 



60. Phialina vermicularis, E. 



61. Phialina viridis, E. 



62. Phacus (Euglena, E.) pleuronectes, D. 



63. Phacus (Euglena, E.) longicauda, J). 



64. Plagiotoma lumbrici, D. 



65. Planariola rubra, D. 



66. Pleuronema chrysalis, D. 



67. Plceotia vitrea, D. 



68. Polyselmis viridis, D. 



69. Polytoma uvella, E. 



70. Prorocentrum micans, E. 



71. Prorocentrum micans, E., side view. 



72. Prorodon teres, E. 



73. Prorodon teres, E., teeth. 



74. Scypliidia rugosa, E. 



75. Spathidium hyalinum, D. (Leucophrys 



spathula, E.). 



76. Spathidium hyalinum, 1)., anterior part 



twisted. 



77. Spirostomum ambiguum, E. 



78. Spirostomum ambiguum, E. ; posterior 



end more magnified. 



