252 Trans. Acad. Sci. of St. Louis. 



blackish specks on the underside of the plastron, extending from the 

 anterior legs to the outside of the posterior pair. 



Size. — Length of carapace 350 mm.; width of same 280 mm. Length 

 of plastron 254 mm. 



Habitat, — Abundant in the Central States. It inhabits 

 the tributaries of the Mississippi Eiver in the States of 

 Wisconsin, Indiana, Illinois, Missouri, Iowa, Ohio, Penn- 

 sylvania, and western New York. It also occurs in the 

 tributaries of the St. Lawrence Eiver, the lakes of north- 

 ern New York, and Lake Champlain. Missouri localities : 

 — Mississippi, Missouri, Osage, Gasconade, Meramec, and 

 White Rivers. 



Habits. — The Spiny Soft Shell Turtles have habits simi- 

 lar to those of the preceding species. 



List of Amphibians and Reptiles so far Found in the 

 State of Missouki. 



AMPHIBIA. 



CAUDATA. Salamanders. 



1. Necturus maculosus Rafinesque. Water Dog. Mud Puppy. 



2. Mren lacertina Linn. Siren. Mud Eel. Two-legged Eel. 



3. AmpJiiuma means Linn. Congo Eel. Congo Snake. 



4. Cryptohranchus alleghaniensis Daudin. Hellbender. Mud Devil. 



5. Amhystoma microstomum Cope. Small-mouthed Salamander. 



6. Amhystoma tigrinum Green. Tiger Salamander. 



7. Amhystoma punctatum Linn. Spotted Salamander. 



8. AmTjystoma opacum Gravenhorst. Marbled Salamander. 



9. Hemidactylium scutatum Scblegel. Scaly or Four-toed Sala- 



mander. 



10. Plethodon erythronotus Green. Red-backed Salamander. 



11. Plethodon glutinosus Green. Slimy Salamander. 



12. Spelerpes longicaudus Green. Long-tailed or Cave Salamander. 



13. Spelerpes macuUcaudus Cope. Spotted-tail or Hoosier Sala- 



mander. 



14. Spelerpes stejnegeri Eigenmann. Stejneger's Cave Salamander. 



15. Spelerpes guttoUneatus Holbrook. Holbrook's Salamander. 



