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Show 1878.] CLASSIFICATION O F T H E CERVID-E. 887 those with telemetacarpal limbs are printed in italics, and those with plesiometacarpal limbs in ordinary type. From this a remarkable parallelism becomes at once apparent between the distribution of the Cervidae in the two main divisions of the earth's surface, and the condition of the rudimentary external digits of their fore limbs. Of the 39 species confined to the Old World, 36 are Plesiometacarpi, the exceptions being Hydropotes inermis and the two species of Capreolus. Of the 22 species confined to the N e w World, 21 are Telemetacarpi, Cervus canadensis being the sole exception. Both species of circumpolar range are Telemetacarpi. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. Old World. Cervulus muntjac. lacrymans. reevesii. Elaphodus cephalophus. michianus ? Cervus (Rusa) aristotelis. -) equinus. -) swinhoii. -) philippinus. -) mariannus ? -) nigricans. -) alfredi. -) kuhli. -) porcinus. -) lepidus ? -) hippelaphus. Rucervus) duvauceli. ) schomburgki. ) eldi. Northern regions of both Hemispheres. 1. Alces machlis. 2. Rangifer tarandus. Elaphurus) davidianus. Axis) axis. Pseudaxis) sika. •) euopis? -) mantchuricus. ) dybowskii? •) kopschi ? ) taevanus. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. - ?) caspicus. Cervus) elaphus. •) xanthopygus ? ) eustephanus. ) maral. cashmeerianus. affinis. Darna) dama. - ) mesopotamicus. Hydropotes inermis. Capreolus caprcea. pygargus. New World. Cariacus (Cariacus)virginianus. - ) leucurus ? - ) mexicanus. - ) similis ? - ) savannarum. - ) peruvianus. - -)) t goylmtneoctuiss.. - ) macrotis. ) columbianus. Blastocerus) paludosus. - ) campestris. Furcifer) chilensis. ) antisiensis. Coassus) rufus. -)) sriumfpilniucsi.c ornis. ) nemorivagus. ) superciliaris. ' ) whitelyi. Pudua humilis. Cervus canadensis. The fact of the plesiometacarpal and telemetacarpal limb-characters so closely corresponding with the distribution of the Cervidae in the Old and N e w Worlds, would in itself have convinced m e of their fundamental importance ; but a certain osteological cranial cha- 58* |