SYSTEMATIC INDEX. 



Pages 



MALACOZOA. MOLLUSCA, is 



CLASS I. CEPHALOPODA, . 20 



ORDER I. CEPHALOPODA CRYPTADIBRAN- 



CHIATA, . > . . 22,26 



FAMILY I. SEPIINA, . . 22, 26 



SECTION I. DECACERATA, . 22,26 



1. SEPIOLA. SEPIOLE, . . . . 22, 26 



1. Sepiola Rondeletii. Common Sepiole, . . 22, 27 



2. SEPIA. CUTTLE, . . . . 22,28 



2. Sepia officinalis. Common Cuttle, . . 22, 29 



3. LOLIGO. CALMARY, . ; . . 22,29 



3. Loligo vulgaris. Common Calmary, . . 22, 29 



SECTION II. OCTOCERATA, . 23,31 



4. ELEDONE. ELEDONE, . . . . 23, 31 



4. Eledone Penuantii. Pennant's Eledone, . 23, 31 



5. Eledone Aldrovandi. Aldrovandus's Eledone, . 23, 32 



ORDER II. CEPHALOPODA STPHONIFERA, 23,33 



ORDER III. CEPHALOPODA FORAM1N1FERA, 32, 33, 315 



FAMILY I. DISCORBINA, . 315 



5. POLYSTOMELLA. POLYSTOMELLA, . . . 23,33,315 



6. Polystomella crispa. Crenated Polystomella, . 23,33,315 



7. Polystomella Gulielminse. Williamma's Polystomella, 315 



8. Polystomella crenulata. Crenulated Polystomella, 316 



9. Polystomella umbilicatula. Umbilicated Polystomella, 317 



10. Polystomella nautilina. Nautiline Polystomella, 317 



11. Polystomella depressula. Smooth Polystomella, 318 



6. NUMMULINA. NUMMULINE, . . 24, 34, 318 



12. Nummulina marginata. Margined Nummuline, 24,34,318 



7. DISCORBIS. DISCORBIS, .... 24,34,318 



13. Discorbis lobatulus. Lobulate Discorbis, . 24, 34 



Var D. lobatulus reversus. Reversed, . 24, 35 



14. Discurbis yulchellus. Delicate Discorbis, . . 318 



A 



