DESCRITTI DA F. SACCO 127 
Retusa semisulcata, p. 40. 
Id. truncatula, p. 40. 
Rimula, p. 17. 
Rimula dissita, p. 17. 
Id. exquisita, p. 17. 
Id. Libassi, p. 17. 
Id. radiata, p. 17. 
Roxania, p. 45. 
Roxania biumbilicata, p. 46. 
Id. clara, p. 46. 
Id. Cranchi, p. 45, 46. 
Id. intermedia, p. 46. 
Id. lineata, p. 46. 
Id. ovulata, p. 46. 
Id. var. taurolaevis, p. 46. 
Id. var. totornata, p. 46. 
Id. utriculus, p. 45. 
Id. utriculoides, p. 46. 
Sabatia, p. 45. 
Sabatia bathymophila, p. 45. 
Id. Isseli, p. 45. 
Id. plicata, p. 45. 
Id. uniplicata, p. 45. 
Id. utriculoides, p. 45. 
Scaphander, p. 43. 
Scaphander var. curta, p. 44. 
Id. var. dertonensis, p. 44 
Id. Grateloupi, p. 44. 
Id. var. Grateloupi, p. 44. 
Id. lignarius, p. 43, 44. 
Id. oligoturritus, p. 44. 
Id. var. parvulina, p. 44. 
Id. sublignarius, p. 44. 
Id. var. targionia, p. 43. 
Id targionius, p. 43, 44. 
SCAPHANDRIDAE, p. 43. 
SCAPHOPODA, p. 92. 
Scarabella, p. 70. 
Scarabella Capellinii, p. 71. 
Id. fossanensis, p, 70. 
Id. var. ligustica, p. 71. 
Id. var. quatuordentata, p. 70. 
Scarabus myotis, p. 77. 
Id. subglobosus, p. 78. 
Schismope p. 5. 
Scismope cingulata, p. 5. 
Id. striatula, p. 5. 
Scissurella, p. 5 
Scissurella crispata, p. 5. 
Scissurella elegans, p. 5. 
Id. striatula, p. 5. 
SCISSURELLIDAE, p. 5. 
Scutulum, p. 88. 
Scurria, p. 20. 
Scurria var. digitiformis, p. 20. 
Id. var. elatiuscula, p. 20. 
Id. pileata, p. 20. 
Id. scurra, p. 20, 118. 
Scutum, p. 17. 
Scutum australe, p. 17. 
Id. Bellardii, p. 17, 18. 
ld. var. dertonensis, p. 18. 
Id. var. strictula, p. 18. 
Id. unguis, p. 18. 
Semiauricula, p. 79. 
Semperia, p. 17. 
Semperia dissita, p. 17. 
Id. paivana, p. 17. 
Serrulina, p. 73. 
Serrulina decemplicata, p. 73. 
Siphonaria, p. 87. 
Siphonaria bisiphites, p. 87. 
Id. costata, p. 87. 
Id, crassicostata, p. 87. 
Id. var. irregularis, p. 87. 
Id. var. longiuscula, p. 87. 
Id. var. pluricostulata, p. 87. 
Id. polygona, p. 87. 
Id. sipho, p. 87. 
Id. subcostaria, p. 87. 
Id. Tournoueri, p. 87. 
Id. variecostata, p. 87. 
Id. vasconiensis, p. 87. 
Siphonentalis affinis, p. 114. 
Id. lophotensis, p. 114. 
Siphonodentalium, p. 115. 
Siphonodentalium, p. 113. 
Siphonodentalium exvitreum, p. 115. 
Id. lobatum, p. 115. 
Id. platamodes, p. 114. 
Id. tetragonum, p. 114. 
Id. subfusiforme, p. 116. 
Id. vitreum, p. 115. 
SOLENOCONCHIA, p 9. 
Speo tornatilis, p. 31. 
splirodiscus, p. 83. 
Spirodiscus Barettii, p. 83, 84. 
Id. var. ceresolensis, p. 84. 
Id. Isseli, p. 84. 
STENOGYRIDAE, p. 75. 
Strepsidura carcarensis, p. 25. 
Strobila patuliformis, p. 67. 
Strophostoma anastomaeformis, p. 28. 
Id. italicum, p. 28 
Subemarzinula, p. 17. 
Subemarginula compressa, p. 17. 
Id. deleta, p. 17. 
Id. eocompressa, p. 17. 
Id. prosculphilis, p. 17. 
Id. rugosa, p. 17. 
Succinea, p. 76. 
Succinea arenaria, p. 76. 
Id. oblonga, p. 76. 
Id. palustris, p. 76. 
Id. var. triptychiophila, p. 76. 
SUCCINE!DAE, p. 76. 
sSulcomarinula, p. 80. 
Sulcomarinula taurinensis, p. 80. 
Tachea, p. 62. 
Tachea nemoralis, p. 62. 
Id. var. roccadebaldiana, p. 62. 
Id. sepulta, p. 62. 
Id. tonnensis, p. 62. 
Id. williamsiana, p. 62. 
Tauremarginula, p. 13. 
Tectura, p. 19. 
Tectura, p. 88. 
Tectura var. acuta, p. 19. 
Id. mitra, p. 19. 
Id. var. parvoligustica, p. 20. 
