LIST OF CUTS. 



[Explanation of numbees in all the figures.— l. Head from above; 2. Do. from side; 3. Do. from 

 below; 4. Interior of moutb; 5. Palate enlarged; 6. Forefoot, from below; 7. Hind foot, from 

 below.] 



Page. 



Fig. 1. Chondrocranium and cranial nerves of Salamandra, from the side; 



diagrammatic ; from Wiederslieim 9 



2. The same as Fig. 1, from below 10 



3. Necturus maculatiis Raf. ; No. 8815; Mount Carmel, 111.; Amhlystoma 



mexicanmn Wagl., larva; and Chondrotus tenebrosus B. iSr. G., larva; 



California 24 



4. Necturus punctatus Gibbs; No. 11813; natural size; Charleston, S. C. 27 



5. Cryptoiranchus alleglieniensis Harl. ', No. 9572; Pennsylvania 39 



6. Cryptohranchus fuscus Holbr. ; No. 7003; Knoxville, Tenn .: 43 



7. Amhlystoma talpoideum Holbr. ; No. 3879; natural size; Prairie Mer 



Rouge, La 53 



8. Amilystoma opacum GtsjY. ; No. 3751; natural size; Glo-ucester, Va.... 55 



9. Amblystoma jiunctatum 'Limx. ; natural size; Hampshire County, Va .. 60 



10. Amblystoma conspersum Cope; No. 3934; natural size; Carlisle, Pa. 



S. F. Baird 62 



11. Amblystoma copelanum Hay; from drawing in Proceedings National 



Museum by Prof. O. P. Hay ; Irvington, Ind 65 



12. Amblystoma tigrinum Gfxeen ; No. 4691; natural size; West Northfield, 



111 68 



13. Amblystoma tigrinum Green; No. 40.59; natural size; Fort Ripley, Minn. 74 



14. Amblystoma xiphias Co'pe; No. 14470; natural size; Columbus, Ohio.. 88 



15. Amblystoma jeffersonianum. Green ; No. 3968; natural size, except 5 = f-, 



from Green's type ; western Pennsylvania 91 



16. Amblystoma je^ersonianum fuscum Hallow.; No. 3897; natural size; 



Clark County, Va 92 



17. Amblystoma macrodaetylum Baird; No. 4042; f natural size; Astoria, 



Oregon 9G 



18. Amblystoma spixanthum Cope; type; natural size, Atlanta, Idaho; 



Coll.Copo 98 



19. Chondrotus microstomus Cove; No. 3999; natural size; Saint Louis, Mo. 102 



20. Chondrotus texanus Matthes ; No. 4044 ; twice natural size ; San Anto- 



nio, Tex , 104 



21. Chondrotus paroticus Baird; No. 7021; natural size; Puget Sound, 



Oregon 106 



22. Chondrotus decorticatus Cope; No. 14493; natural size; Port Simpson, 



British Columbia 108 



23. Chondrotus aterrimus Cope ; No. 5242 ; natural size ; Northern Rocky 



Mountains 110 



24. Chondrotus tenebrosus B. & G. ; No. 4053; natural size; Astoria, Ore- 



gon 113 



25. Lingu(ela2}sus annulatus CoT^e ; No. 11564; type; natural size 115 



489 



