QUADRUPEDS OF DELAWARE COUNTY. 



BY JOHN CASSIN. 



1. Vespertilio noveboracmsis. Gray Bat. Frequent. 



2. " fuscus. Brown Bat. Common. 



3. •' pulverulenttis. Hoary Bat. Occasionally occurs. 



4. " cinereus. Large Gray Bat. Rare. 



5. " Caroli. Not common. 



6. Sorex Forsleri. Little Shrew. Probably occurs, but has not been observed. 

 1. Blarina Talpoides. Larger Shrew. Frequent, but rarely seen, nocturnaL 



8. " cinerea. Gray Shrew. Occasionally occurs. 



9. Scalops aqualicus. Common Mole. Abundant. 



10. Condylura cristatn. Star-nosed Mole Occasionally occurs. 



11. Vulpesfidvus. Bed Fox. More rare than formerly. 



12. Putorius noveboracensis. Weasel. Not common. 



13. " vison. Mink. Not common. 



14. Mephitis mephHica. Skunk. Polecat. Frequent. 



15. Lutra canadensis. American Otter. Very rare, but has once occurred within 



a few years, in Crum Creek. 



16. Proq/on lolor. Raccoon. Occasionally occurs. 



17. Didelphys virginiana. Opossum. Frequent. 



18. Sciurus cinereus. Cat Squirrel. Rare, more so than formerly. 



19. " carolinensis. Gray Squirrel. Frequent. 



20. " hudsonius. Red Squirrel. Chickaree. Not common. 



21. Tamias strintus. Ground Squirrel. Abundant. 



22. Pteromys volucella. Flying Squirrel. Frequent. 



23. Arctomys monax. Ground Hog. Marmot. Frequent. 



24. Fiber zihelhicus. Jlusk Rat. Frequent. 



25. 3Ius devumanus. Common Rat. Abundant. 



26. " miisculus. Mouse. Abundant. 



21. Arvicola pennsylvanicus. Common Field Mouse. Common. 



28. " riparius. Marsh Field Mouse. Frequent. 



29. Ilesperomys leucopiis White-footed Mouse. Occasionally occurs. 



30. Jaculus hudsonius. Jumping Mouse. Rare. 



31. Lepus sylvaticus. Rabbit. Frequent. 



32. Belphinusphocaena. Porpoise. Occasionally ascends the Delaware River to 



within the limits of this County. 



33. Balaena mysticeius. AVhale. Has been twice known to occur within and 



above the limits of this County, in the Delaware River. 



