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).