394 ' RHINOCEROS. 



and R. Etruscus. The symphysial part of the jaw and the diasteme, in 

 their sudden abbreviation and general contour, remind me very closely 

 of Gervais' drawing of R. megarhinus. Unluckily the lower surface of 

 the symphysis is either broken or covered by matrix, so as to conceal the 

 character there yielded by the foramina. 



The left ramus on its outer surface is distinctly covered by sea-shells, 

 some of which are of a Patella-looking form. The lower border of the 

 ramus is nearly in a horizontal line from the posterior angle, as far as 

 the last premolar ; it then curves gently forwards to rise suddenly 

 upwards into the beak, in a line with the anterior edge of the ante- 

 penultimate premolar. On the whole, I am satisfied that the specimen 

 belongs to R. megarhinus (R. leptorhimis, mihi.) 



The outer surface of the ramus is convex, but the inner is flat, with 

 a broad longitudinal shallow channel. The teeth appear to have been 

 covered with a considerable coat of cement. On the right side, at the 

 middle of the diasteme, and about half way into the incisive border, 

 there is an indistinct appearance of a triangular pit, as if the residuary 

 socket of a small shed tooth ; there is no such evidence on the left side, 

 in consequence of a layer of matrix. 



XI. — Ehinoceeos Leptoehinus at Pisa. 

 May 22, 1859. 



The Rhinoceros specimen from the Ardenza bone-breccia, contain- 

 ing the antepenultimate and penultimate true molars, left side, is not of 

 R. hemitcechus, but of R. megarhinus. 



XII. — Description of Remains of Rhinoceros Leptorhinus in the 



Museum at Imola. 



May, 1861. 



Came on last evening by Faenza from Ravenna, and went out this 

 morning at 5 a.m., with Signor Scarabelli the Syndic, and Capellini, to 

 see the locality where the Rhinoceros bones, &c, in the Museum were 

 found. Drove about due S. parallel to the Santerno, towards the hills ; 

 crossed the river, and then entered a small valley, that of the ' Rio 

 dell' Acque Marine,' where the proprietor, Signor Cerchiani, a friend of 

 Scarabelli's, had collected through the villagers the Rhinoceros and other 

 bones. The sections are beautifully shown, somewhat as in the Sewalik- 

 hills. 



1. Uppermost yellow quaternary loam or lehm. 



2. A thick bed of stratified gravel in a hard sandstone cement, 



quaternary. 



3. Thick beds of yellow sand, containing Cardium edule, &c, with 



occasional seams of gravelly conglomerate. 



4. Blue clay, containing walnuts with elongated fruit, the same as 



those at Milan (p. 391). Saw nothing exactly corresponding 



to the Sansino beds of the Val dArno. 

 Signor Cerchiani had the bones collected for him by the contadini, 

 who found a superb skull of a fossil Rhinoceros and broke it into bits to 

 get their separate reward for each piece, a baiocco per fragment ! Sca- 

 rabelli repaired the broken teeth, and has fitted the whole series of either 

 side very cleverly into separate slabs of plaster of Paris, exactly in their 



