SCHEME OF THE CLASSIFICATION ADOPTED IN THIS BOOK
MOLLUSCA
| Class | Order | Sub-order | Section | |
| CEPHALOPODA | Dibranchiata | Octopoda (p. 382). | Phragmophora (p. 386). | |
| Sepiophora (p. 388). | ||||
| Decapoda | Chondrophora | Myopsidae (p. 389). | ||
| Oigopsidae (p. 390). | ||||
| Tetrabranchiata | Nautiloidea | Retrosiphonata (p. 393). | ||
| Prosiphonata (p. 395). | ||||
| Ammonoidea | Retrosiphonata (p. 397). | |||
| Prosiphonata (p. 397). | ||||
| GASTEROPODA | Amphineura | Polyplacophora (p. 400). | ||
| Aplacophora (p. 404). | ||||
| Prosobranchiata | Diotocardia | Docoglossa (p. 405). | ||
| Rhipidoglossa | Zygobranchiata (p. 406). | |||
| Azygobranchiata (p. 407). | ||||
| Monotocardia | Ptenoglossa (p. 411). | |||
| Taenioglossa | Platypoda (p. 411). | |||
| Heteropoda (p. 420). | ||||
| Taenioglossa | ||||
| Gymnoglossa (p. 422). | ||||
| Toxoglossa (p. 426). | ||||
| Tectibranchiata | Bulloidea (p. 429). | |||
| Aplysioidea (p. 430). | ||||
| Pleurobranchoidea (p. 431). | ||||
| Siphonarioidea (p. 431). | ||||
| Opisthobranchiata | Ascoglossa (p. 431). | |||
| Nudibranchiata | Cladohepatica (p. 432). | |||
| Holohepatica (p. 433). | ||||
| Pteropoda | Thecosomata (p. 435). | |||
| Gymnosomata (p. 437). | ||||
| Pulmonata | Basommatophora (p. 438). | |||
| Stylommatophora (p. 439). |
| Class | Order | Suborder |
| SCAPHOPODA (p. 444). | ||
| PELECYPODA | Protobranchiata (p. 447). | |
| Filibranchiata | Anomiacea (p. 448). | |
| Arcacea (p. 448). | ||
| Mytilacea (p. 448). | ||
| Pseudolamellibranchiata (p. 449). | ||
| Eulamellibranchiata | Submytilacea (p. 451). | |
| Tellinacea (p. 453). | ||
| Veneracea (p. 454). | ||
| Cardiacea (p. 454). | ||
| Myacea (p. 456). | ||
| Pholadacea (p. 457). | ||
| Anatinacea (p. 458). | ||
| Septibranchiata (p. 459). |
BRACHIOPODA
| Order | Family | |
| Brachiopoda | Ecardines | Lingulidae (pp. 487 and 503). |
| Obolidae (p. 504). | ||
| Discinidae (pp. 487 and 504). | ||
| Craniidae (pp. 487 and 504). | ||
| Trimerellidae (p. 504). | ||
| Testicardines | Productidae (p. 504). | |
| Strophomenidae (p. 505). | ||
| Koninckinidae (p. 505). | ||
| Spiriferidae (p. 505). | ||
| Atrypidae (p. 505). | ||
| Rhynchonellidae (pp. 487 and 505). | ||
| Terebratulidae (pp. 487 and 506). | ||
| Argiopidae (p. 506). | ||
| Stringocephalidae (p. 506). | ||
| Thecidiidae (pp. 487 and 506). |