THE BATRACHIA OF NORTH AMERICA. 503 



PLATE XXXV, 



Hyoid apparatus of Pletbodontidfe, dissected and drawn by Dr. E. E, Gait, excepting 



figs. 11 and 12. 



Fig. 1. Plethodon oregonensis, inferior view, x 2, 



2. Plethodon glutinosus, inferior view, X 2. 



3. Autodax lugubris, inferior view, X 2. 



4. Batrachoseps attenuatus, inferior view, X 3. 



5. Hemidactylium sciitatum, inferior view, X 3. 



6. Gyrinojjhilus 2}orphynticus, inferioT view, X 3, 



7. Spelerpes ruber, superior view, X 3. 



8. Spelerpes ruber, inferior view, X 3. 



9. Spelerpes ruber, larva, superior view, X 4. 



10. Spelerpes ruber, larva, inferior view, X 4. 



11. Spelerpes longicaudus, inferior view. 



12. Manculus quadridigitatus, inferior view. 



PLATE XXXVI. 

 Hyoid apparatus of Urodela. 



Fig. 1. Desmognathus fusca, inferior view, x 3; Dr. Gait. 



2. Diemyctylus torosus, inferior view, X 2; Dr. Gait. 



3. Diemyctylus viridescens, superior view, X 2 ; Dr. Gait. 



4. Diemyctylus viridescens, lateral view, x 2. 



5. Diemyctylus palmatus, inferior view, X 3. 



6. Salamandrina perspicillata, inferior view, X <3 ; from Parker. 



7*. Salamandrina perspicillata, larva, inferior view:, X 6; from Parker. 



8. Memisalamandra cristata, X 2 ; inferior view. 



9. Chioglossa lusitanica, inferior view, X 3. 



PLATE XXXVII. 



Fig. 1. Salamandra maculosa, skeleton, natural size. 



2. Thorius pennatulus, skull, from side, X 4. 



3. Thorius pennatulus, skull, from above, X 4. 



4. Thorius pennatulus, skull, from below, X 4. 



PLATE XXXVIII. 



Fig. 1-4. Diemyctylus torosus, skull, much enlarged ; copied from Parker. 



1. From above. 



2. From below. 



3. Right mandibular ramus, external view. 



4. Right mandibular ramus, internal view. 



5-9. Salamandrina perspicillata, skull; copied from Wiedersheim. 



5. Skull, from above. 



6. Skull, from below. ' 



7. Skull, from left side. 



8. Skull, from front. 



9. Skull, from behind. 



PLATE XXXIX. 



Diemyctylus viridescens, much enlarged ; copied from Parker. 



Fig. 1. Skull of adult, from above. 



2. Right ramus of mandible, inner side. 



