KIIINOCEROS LEPTOE1IINUS. 379 



tubercle behind, and the form of the crochet (open angle), together 

 with that of the disc of the posterior barrel and the width and broad 

 deep furrow of the outer angle. 



The upper molars of E. leptorhmus, which I have examined at Rome, 

 are : 3 of t.m. 3 ; 1 of t.m. 2 ; 4 of t.m. 1 ; 1 of p.m. 4 ; 1 of p.m. 3 ; 

 1 of p.m. 2 ; and 1 of m.m. 



I have not seen a trace of an indigenous tooth of E. tichorhinus in any 

 of the Roman collections. The teeth in the Kircher Museum are evi- 

 dently of foreign origin. They consist of one upper molar and of two 

 lower molars, all detached and worn, with the yellow ochre matrix of 

 the Devon and Somerset caves. 



VI. — Note on R. Leptorhinus from Montignoso, near Leghorn. 

 Florence, May 20, 1859. 



No. 1 . — Is a fragment of the anterior part of the right maxillary, 

 showing the antepenultimate and penultimate premolars much worn. 

 Compared them with Jourdan's casts and drawings from Montpellier 

 (p. 369), and found them to agree exactly. 



No. 2. — Is a penultimate or antepenultimate true molar, upper jaw, 

 left side, exactly like the Montpellier specimens. 



No. 3. — Consists of a penultimate and antepenultimate of upper jaw, 

 right side, detached and well worn, agreeing closely in form with the 

 Montpellier specimens. In the penultimate, a very thick layer of 

 cement lines the posterior valley and both the outer anterior angles; 

 the groove is broad and deep. 



No. 4. — Is a specimen of the last premolar, upper jaw, right side, in 

 beautiful preservation and showing the characters very perfectly. The 

 posterior barrel throws forward two crochet processes nearly of the 

 same size, of considerable thickness, and well separated; the outer ridge 

 throws off converging ' combing plates,' nearly of the same size, so that 

 the sinuosities of the transverse valley are very complicated. 



No. 5. — Is a fragment of the lower jaw, left side, containing the 

 penultimate true molar, partly worn, but having the crescents still 

 separated. 



These specimens are of great interest in proving the extension of the 

 E/tinoceros megavliinus into the ' Val oVArno inferiore.' 1 They were 

 found along with remains of Eleplias antiquus. 



VII. — Note on Rhinoceros from Val di Chiana. 

 Arczzo, May, 1859. 

 Examined a lower jaw, right side, of Rhinoceros in the same mineral 

 condition (i.e. white and adhering to the tongue), as the large Elephant 

 femur and bovine heads from the Val di Chiana in the Florence Museum. 

 Only part of the symphysis is present. The anterior margin of the 

 right ascending ramus is present, but the posterior angle is wanting. 

 The jaw contains the five last molars in situ. The antepenultimate 

 premolar has dropped out, but its two fangs are seen. The molars are 

 well worn ; the crown of the first true molar is worn out; and in the 

 last the discs of the crescents are united. The teeth show marks of a 

 thick layer of cement dislaminated ; there is an oblique bourrelet on the 

 outside of the barrels as in E. megarhinus. The enamel is thickish and 



