190 : REPORT—1874, 
“The palatine bones could not be traced. The atlas is in close apposition with the 
occiput, so that the articulating surfaces are not visible. The expansion of the 
atlas indicates, however, that two condyles probably exist. No portions of the 
hyoid bone or of branchial arches were recognized. The vertebree are very imper- 
fectly preserved, and are remarkably small in proportion to the size of the animal; 
and though several of them are destroyed, it is estimated that about twenty existed 
between the occiput and the pelvis. The transverse processes, if any exist, are not 
visible; nor is there evidence of ribs..... A slightly raised outline appears to be 
the only thing to indicate a scapular arch, but there are no details of structure. The 
arm is better preserved, the humerus is much contracted in the middle as in Ba- 
trachians generally ; the radius and ulna are separate as in Urodels, and not united 
asin Anoura. In consequence of the displacement or concealment of some of the 
phalanges, the number of fingers could not be ascertained with precision. There 
were certainly four, but a fifth is doubtful. It would be of great importance if a 
fossil should be detected with five fingers, since no existing Batrachians have more 
than four, while many of the supposed Batrachian footprints of the coal-formations 
have five, The pelvis was destroyed, but traces of the right and left femur and of 
the right tibia remain.” 
P. Lyrtiu, Wyman. 
Locality. Coal-measures, Linton, Ohio. 
References. Wyman, American Journal of Science and Arts, 2nd ser. vol. xxv. 
p- 158 [1858]. The description is accompanied by an outline drawing.— 
Cope, Synopsis, p. 9.—Id. Rapplanteet p- 9. 
Phlegethontia, Cope. 
“Head elongate triangular; body and tail extremely elongate, the dorsal ver- 
tebrze without ribs, and the caudals without dilated spines. No ventral armature 
nor limbs. .... Chevron bones are not observable on the caudal vertebre. This 
form is a true Batrachian snake.” 
P. LINEARIS, Cope. 
P. SERPENS, Cope. 
Locality. Coal-measures, Linton, Columbiana County, Ohio. 
References. Cope, Proc. American Phil. Soc. 1871, p. 177.— Id. Supplement, p. 2. 
Ptyonius, Cope. 
See Urocorpy ts, p. 170. 
Raniceps, Wyman. 
See PExtron, p. 189. 
Rhombopholis, Owen. 
A substitution for Anisopus, which had been previously used by Templeton for a 
proposed genus of Amphipodous Crustacea. ; 
Reference. Owen, Comp. Anatomy of Vertebrates, vol. i. p. 15 [1866]. 
Salamandroides, Jager. 
See Mastroponsavrts, p. 151. 
Sauropleura, Cope. 
“Vertebree and ribs well developed, no fan-shaped processes of the former, 
Limbs four, well developed and elongate,” pentadactyle. ‘‘ Ventral armature of 
slender rods arranged en chevron, the angle anterior. Probably no thoracic arma- 
