THE BATRACHIA OF NORTH AMERICA. 511 



Fig. 15. Borboroccetes tasma)iiensts, crauium. 



16. Borhoroc(eies jyeronii, two skulls. 



17. Relioporns anipunctatus, skull. 



18. HeUoporus albipunctatus, sternum. 



PLATE LXXI. 



CystignaiMdce — Continued. 



19. Hyperolia marmorata, part of crauium, and separate ethmoid. 



20. Hyperolia marmorata, sternum. 



21. FaludkoJa irachyops, cranium. 



22. Lithodytes latrans, cranium ; a, sternum. 



23. Ehyncholistris rosetis, with and without prefrontal bones. 



24. Susophus nodosus. 



25. Hylorhina cenea. 



26. Crinia georgiana, skull and ethmoid. 



27. Alsodes monticola, frontoparietal bones and sacrum of type specimen. 



28. Pleurodema 6i6/-o?u, skull part. 



29. Liuperus marmoratus, skull part. 



30. Buionias p)licifro)is, s]s.ulL 



31. Bnhonias plicifrons, sternum. 



32. Elosia hufonia, with separate ethnoid. 



33. Elosia nasus. 



34. Syrrhojyhus marnocJcii. 



35. Crossodactylus gaudicliaudii, 



36. Rylodes lentus. 



37. Rylodes oxyrhynchus. 



38. Rylodes martinicensis. 



39. Leptodactylus caliginosua f 



40. Leptodactylus ? 



41. Cystignathus ocellata. 



42. Ungual phalanges of Cystignathidte. Nos. 5,6, Hylodes; 23, 24, Cystignathi. 



PLATE LXXII. 



Rylidce. 



Fig. 1. TTioj'Ojja ?jwssiessii, to]3 of front of skull. 



2. Chorophilus ornatus, top of skull. Fig. a, premaxillary bone ; i, maxillary; 



c, prefrontal ; d, ethmoid ; /, squamosal ; g, exoccipital ; h, foramen mag- 

 num. 



3. Rypsihoas xeropliyllum, front of top of skull. 



4. Rypsihoas crepitans, front of top of skull. 



5. Ryp>siboas albomarginatus, front of top of skull ; a, a thin ossification of basal 



membrane. 



6. Ryjjsiboas punctatus, front of top of skull. 



7. Cincloscopus maximus, front of top of skull. 



8. Ryla leucomelas, front of top of skull. 



9. Ryla ? sp., front of top of skull. 



10. Ryla gratiosa ; a, sternum, front of top of skull. 



11. Ryla americana (Litoria), front of top of skull. 



12. Ryla freycineti, front of top of skull. 



13. Ryla hyposticta, front of top of skull. 



14. Ryla dimolops, front of top of skull. 



15. Ryla aurea (Ranoidea), front of top of skull. 



16. Smilisca baudinii, front of top of skull, with ungual phalanges. 



