INDEX. 



87 



Gromia, ij,2i. 

 Gutlulina, 24. 

 Helicoidea, 10, 11. 

 Hrlicostega, 10, 11, 15. 

 Hetnispongia, 42. 



Infusoria, 2, 5J ; structure of, 55—58, 

 60—66 ; classification of, 59 ; size of, 

 59 ^ urticating organs of, 66; loco- 

 motive organs of, 66 ; development 

 of, 68 ; distribution of, 7}. 



Lagena, ij, 21. 



Lagotia, 61. 



Litigulina, 14, 2j. 



Locomotive organs, of Infusoria, 66. 



Loxodes, 6j, 65. 



Meandrospongia, 42. 

 Miliolina, 15, 21. 

 Miliolince, 10. 

 Monocystideee, 51. 

 Monostega, 10. 11. 

 Multilocular Foraminifera, 14. 



Nnssula, 6j. 



Nautiloid Foraminifera, 14, 22. 



Noctiluoa, 74. 



Nddosaria, 14. 



Nonionina, 26. 



Nucleolus, of Infusoria, 65. 



Nucleus, of Protozoa, i ; of Amoeba, 

 5 ; of Spharozoum, 44 ; of Gregori- 

 nidce, 49; of Infusurta, 65; of Aoc- 

 tiluca, 75. 



Nummulites, 15, 16, 17, 25, 26. 



Nummulitic formation, extent of, 25. 



CEsophagus, of Infusoria, 56, 6j ; of 



Noctiluca, 75. 

 Operculina, 17. 

 Ophrydium, 61. 

 Ophryoglenn, 64, 65, 66. 

 Orhituides, 26. 

 Orbitolites, 17—21, 26. 

 Orbulina, 2j. 

 Oscula, of Sponges, 33. 

 Ova, of Tethya, j8. 

 Oxytricha, 65, 67, 71. 



Palcvospongia, 42. 

 Pamphagus, 8. 

 Paramecium, 64, 66, 68, 71. 

 Parenchyma of the bodj-, of Infusoria, 



57, 62. 

 Pellicula, 62. 

 Peranema, 67. 

 Perispongia, 42. 

 Peristome, of Voriicella, 56. 

 Pharynx, of VorticellcB., 56, 63. 

 Phosphorescence, of Infusoria, 74 ; of 



Noctiluca, 74, 75. 

 Pigment spot, oi Infusoria. 65. 

 Pleurostoma, 42. 

 Podophyra forms, 70, 71. 



Polycystina, z, 28, 48 ; distribution of, 



29. 

 Polygastrtca, of Ehrenberg, 53. 

 Puiystonielui, 15, 16. 

 Polythalamia, 10, il, T4. 

 Pores, of Sponges, 33. 

 Proteonina, 21, 

 Protozoa, general characters of. 1 ; 



classification of, 2. 

 Pseudo-naviculae, of Gregarinida; 50, 



51- 



Pseudopodia, of Rhizopoda, J, 6, 9; of 



Polycystina, 29. 

 Psorospermice, 51. 



Radiolaria, 48. 



Reparative powers, of Sponges, 35. 



Reproduction, of Spongidce, 39 j of 

 Infusoria, 71. 



Retispongia, 42. 



Rhabdoidea, 10, 11. 



Rhizopoda, 2, 3 ; nature of, 6 : classifi- 

 cation of, 8; size of, 26; develop- 

 ment of, 26. 



Rhizopoda radiolaria, 47, 48. 



Rotalia, 24, 25. 



Rotatory organ, of Voriicella, 56. 



Sarcode, 6, 9, 29, 62. 



Seed-like body, of Spongilla, 40. 



Setas, of Infusoria, 67. 



Shelly covering, of Foraminifera, 9, 



13-23 ; of Polycystina, 28 ; of Cf/- 



li.'fjiheBra , 46. 

 Size, of Rhizopoda, 26 ; of Spongidw, 



3 1 ; of Thalassicollidce, 44 ; of /«/m- 



soria, 59 ; of Noctiluca, 75. 

 Skeleton, of Sponges, 32. 

 Soroidea, 10, 11. 

 Spermatozoa, of Tethya, 38. 

 Sphcerozoum, 44. 

 SphwrozomidcB, 48. 

 Spicula, of Spongidee, 35, 37, 40 ; of 



TlialassicoUidce, 45. 

 Spirulina, 25. 

 Spongidcs, 2, 30 ; animal nature of, 30 ; 



form and size of, 31 ; skeleton of, 32; 



aquiferous system of, 32; reparatiie 



powers of, 35 ; spicula ot, 35 ; classifi- 



cati')n of, 36; development of, 39; 



distribution of, 42; fossil forms of, 



42; affinity of, to Foraminifera, 43. 

 Spongilla, 30, 34, 36, 39; .«eed-like 



bodies of, 40; swarm spores of, 41. 

 Stalk, of Vurticetia, 57, 58. 

 Starch granules, in Aynoeba, 6. 

 Stentor, 59, 63, 65, 68, 73. 

 Stichoste^a. 10, il. 

 Styles, ol Infusoria, 67. 

 Swarm spores, of Spongilla, 41. 



Technical terms, applied to shells of 



Rhizopoda, z\. 

 Teeth, of Chilodon and Nassula, 63. 

 Tentacle, of Noctiluca, 75 

 Tethya, structure of, 37. 



