530 GEOGRAPHICAL ZOOLOGY. [PART iv. 



FAMILY 31. TOENATELLID^E. (7 Genera, 62 Species living, 

 166 fossil.) 



FAMILY 32. BULLID^E. (12 Genera, 168 Species living, 

 88 fossil.) 



FAMILY 33. APHYSIAD.E. (8 Genera, 84 Species living, 

 4 fossil.) 



FAMILY 34 PLEUEOBKANCHID^. (7 Genera, 28 Species 

 living, 5 fossil.) 



FAMILY 35. PHYLLIDIAD^E. (4 Genera, 14 Species living, 

 fossil.) 



FAMILY 36. DOEID.E. (23 Genera, 160 Species living, 

 fossil.) 



FAMILY 37. TEITONIAD^. (9 Genera, 38 Species living, 

 fossil.) 



FAMILY 38. ^EOLID^E. (14 Genera, 101 Species living, 

 fossil.) 



FAMILY 39. PHYLLYEHOID^. (1 Genus, 6 Species living, 

 fossil.) 



FAMILY 40. ELYSIAD^E. (5 Genera, 13 Species living, 

 fossil.) 



