-------------------------+--------------------------+----------------------+-------------- _Legions of the_ | _Orders of the_ | _Systema Name_ | _Name of a_ _Crustaceæ._ | _Crustaceæ._ | _of the Orders._ | _Genus as an_ | | | _example._ -------------------------+--------------------------+----------------------+-------------- I. ENTOMOSTRACA, _Lower Crustacea_, or Segmented Crabs (not passing through the actual Zoëa form in youth). ------------------------------------------------------------------------------------------
+I. Branchiopoda+ { 1. Primæval Crabs 1. Archicarida Nauplius Gill-footed Crabs { 2. Leaf-foot Crabs 2. Phyllopoda Limnetis { 3. Trilobites 3. Trilobita Paradoxides { 4. Water Fleas 4. Cladocera Daphnia { 5. Bivalve Crabs 5. Ostracoda Cypris
+II. Pectostraca+ { 6. Barnacle Crabs 6. Cirripedia Lepas Fixed Crabs { 7. Root Crabs 7. Rhizocephala Sacculina
+III. Copepoda+ { 8. Boatmen Crabs 8. Eucopepoda Cyclops Oar-footed Crabs { 9. Fish Lice 9. Siphonostoma Lernæocera
+IV. Pantopoda+ { 10. No-body Crabs 10. Pycnogonida Nymphon No-body Crabs {
+V. Pœcilopoda+ { 11. Spear-tails 11. Xiphosura Limulus Shield Crabs { 12. Giant Crabs 12. Gigantostraca Eurypterus
------------------------------------------------------------------------------------------ II. MALACOSTRACA, _Higher Crustacea_, or Mailed Crabs (passing through the Zoëa form in youth). ------------------------------------------------------------------------------------------
+VI. Podophthalma+ { 13. Zoëa Crabs 13. Zoëpoda Zoëa Stalk-eyed Mailed { 14. Split-legged Crabs 14. Schizopoda Mysis Crabs { 15. Mouth-footed Crabs 15. Stomatopoda Squilla { 16. Ten-footed Crabs 16. Decapoda Peneus
+VII. Edriophthalma+ { 17. Cuma Crabs 17. Cumacea Cuma Mailed Crabs with { 18. Flea Crabs 18. Amphipoda Gammarus sessile eyes { 19. Wizard Crabs 19. Læmodipoda Caprella { 20. Louse Crabs 20. Isopoda Oniscus
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Brachyura Isopoda | | | Læmodipoda | | | | Anomura | | | | | | Amphipoda | | | | | \-----v----/ Macrura | Decapoda Stomatopoda Cumacea | | +Edriophthalma+ | | | \----v----/ | | | | | \---------------------------v------------/ | Schizopoda +Podophthalma+ | Zoëpoda +Malacostraca+ Gigantostraca | Rhizocephala | | Siphonostoma | | Xiphosuræ Zoëa | Cirripediæ | | | | +Pectostraca+ | | | | | \------v------/ | | | | | | | +Pœcilopoda+ | | | | Nebaliæ | | | | | | Eucopepoda | Belinurœ | | +Copepoda+ | Pycnogonida | | | | | +Pantopoda+ Trilobita | | | | | | Phyllopoda | | Ostracoda | | Cladoceræ | | | | | | | | | | | | | | | \-----------------v-------/ | | \---v---/ | | | | | | +Branchiopoda+ | | | | | | | | | | | | | | \----------------------v-------------------------/ | Nauplius | +Archicaridæ+