INDEX OF GENERA. 



129 



Rossia, 84. 

 Rotalia, 6. 

 Rotifer, 42. 

 Rotula, 28. 

 Runcina, 81. 

 Rupicapra, 111. 



, 46. 



Sabellaria, 46. 



Saccammina, 5. 



Sacculina, 48. 



Scenuris, 46. 



Sagartia, 21. 



Sagitta, 47. 



Salamandra, 92. 



Salenia, 27. 



SatZwio, 87. 



SoJpa, 76. 



Salticiis, 63. 



Sanguisuga, 45. 



Sarcopsylla, 69. 



Sarcoptes, 61. 



Sarcorhamph'us, 104. 



Saxicava, 79. 



Saxicola, 103. 



Scalaria, 81. 



Scalpettum, 49. 



Scaphirhynchus, 89. 

 *Scaphites, 84. 



Scincus, 97. 



Sciurus, 115. 



Sclerostoma, 41. 



Scolopax, 101. 



Scolopendra, 64. 



Scomber, 87. 



(Scop.?, 104. 



Scorpio, 62. 



Scrobicularia, 79. 



Scruparia, 74. 



Scutdla, 28. 



Scutellera, 67. 



Scutigera, 64. 



Scyllarus, 58. 



Scyllium, 90. 



Seison, 42. 



Selache, 90. 



Selenaria, 74. 



Semnopithecus, 118. 



<Sepj;a, 84. 



Sepiola, 84. 



<Sep5, 97. 



Serolis, 56. 



Serpula, 46. 



Sertularia, 17. 



-Sfcto, 53. 



Sigalion, 46. 



Sigaretus, 81. 



Silurus, 87. 



Simia, 118. 

 *Siphonia, 10. 



Siphonops, 92. 



Sipunculus, 43. 



Siredon, 92. 



92. 



Sw-ez, 71. 



5ia, 103. 

 *Slimonia, 54. 



Smynthurus, 66. 



Solanocrinus, 32. 



Solarium, 81. 



Solaster, 29. 



5oZea, 87. 



SWew, 79. 



Solenostoma, 88. 



Sores, 116. 



Spalax, 114. 



Spatangus, 28. 



Spatularia, 89. 



Sphceroma, 56. 

 Sphceronites, 35. 



Sphcerozoum, 8. 



Sphceridaria, 40. 



Sphargis, 94. 



Spheniscus, 99. 



Sphinx, 70. 



Spinax, 90. 



4?io, 46. 



Spirialis, 83. 

 *Spirifera, 77. 



Spiroptera, 41. 



Spirorbis, 46. 



Spirula, 84. 



Spondylus, 78. 



Spongilla, 10. 

 *Squalodon, 109. 



Squilla, 57. 

 *Stagonolepis, 98. 

 *Stauria, 25. 



Steatornis, 103. 



StfeWto, 97. 



Stenops, 117. 



Stenorhynchus, 59. 



Stentor, 8. 



Stephanoceros, 42. 



Stephanomia, 20. 



Stephanoscyphus, 17. 



Sterna, 100. 



Stemaspis, 43. 



Stomoxys, 69. 

 *Streptospondylus, 98. 



Strigops, 102. 



S<nx, 104. 



Strombus, 80. 

 *Strophomena, 76. 



Struthio, 99. 



Sturnus, 102. 



Stylaster, 21. 



Stylops, 71. 



Stylorhynchus, 3. 



,Sfo, 100. 



Sulcator, 55. 



>Siw, 110. 



53/Zfe, 46. 



^yit)ta, 103. 



Symbranchus, 87. 



Synapta, 31. 



