الأصناف الرئيسية
2X
الأقسام
الفروع
- 590Animals (Zoology)
- 591Specific topics in natural history
- 592Invertebrates
- 593Marine & seashore invertebrates
- 594Mollusks & molluscoids
- 595Arthropods1
- 596Chordates
- 597Cold-blooded vertebrates; fishes1
- 598Birds
- 599Mammals