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 River, 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 Amphibiaxs and Reptiles so far Found in the 

 State of Missouri. 



AMPHIBIA. 



CAUDATA. Salamanders. 



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



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



3. Amphiuma means Linn. Congo Eel. Congo Snake. 



4. Cryptobranchus alleghaniensis Daudin. Hellbender. Mud Devil. 



5. Ambystoma microstomum Cope. Small-mouthed Salamander. 



6. Ambystoma tigrinum Green. Tiger Salamander. 



7. Ambystoma punctatum Linn. Spotted Salamander. 



8. Ambystoma opa^um Gravenhorst. Marbled Salamander. 



9. Hemidactylium scutatum Schlegel. Scaly or Pour-toed Sala- 



mander. 



10. Pletliodon erythronotus Green. Red-backed Salamander. 



11. Pletliodon glutinosus Green. Slimy Salamander. 



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



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



mander. 



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



15. Spelerpes guttolineatiis Holbrook. Holbrook's Salamander. 



