VERTEBRATA. 259 



wards. The hinder milk-tooth in the upper jaw, as is usual in Artio- 

 dact3ies, is like a molar, while the penultimate is triangular, only its 

 hinder part being like that of a molar. The anterior upper premolar 

 had no predecessor, which is normal in the Ungulata. The deciduous 

 teeth of the lower jaw are seen in natural order ; the hinder milk-tooth, 

 as universally in Artiodactyles, was a six-lobed tooth, pointing to a 

 common ancestor for the whole group. All the permanent teeth have 

 a collar of wrinkled dull enamel ; but this is clear and smooth in the 

 milk-teeth. The functional toes, 3rd and 4th, of the didactyle foot are 

 known. E. B. T. 



Lawley, Robert. Nuovi studi sopra i pesci ed altri Vertebrati fossili 

 delle colline toscane. [Tuscan Fossil Vertebrates.] Pp. 122; o pis. 

 4to. Florence. 



Alcune osservazioni sul Genere Spluerodus^ Agass. ISpJicerodus 



cinctus^ Ag.] Atti Soc. Tosc. Sci. Nat. vol. ii. pp. 60-64, pi. ii. 



Leidy, Prof. J. On Petalodus. Proc. Ac. Nat. Sci. Philad. ser. 3 



vol. vi. 1). 9. 

 Verbal communication on a specimen reputed to have come from 

 Cretaceous rocks. 



. Mastodon andium. Proc. Ac. Nat. Sci. Philad. ser. 3, vol. vi. 



p. 38. 

 Verbal description of ramus of lower jaw. 



. Ecmarks on Fossils from the Ashley Phosphate Beds [S. 



Carolina]. Proc. Ac. Nat. Sci. Philad. ser. 3, vol. vi. pp. 80, 81, 

 86, 87. 



Tooth of Megatherium, part of skull of manatee, tusk of walrus 

 (the most southerly locality recorded), Ceratoptera unios, n. sp. (Bay), 

 Myliohates magister, n. sp., M. mordax, n. sp. (Eagle-ra3's), tooth of 

 Dinoziphius (^\ and beaks of 5 new species of Ziphioids — Choneziphius 

 trachops, C. Hops, Ehoroziphius coelops, Belemnoziphius prorops, and 

 Proroziphius (n. gen.) macrops. Myliohatis fastigiatus (n. sp.) and M. 

 jugosus (n. sp.) are from Eocene of New Jersey. L. C. M. 



. Fish llemains of the Mesozoic Red Shales [Pennsylvania]. 



Proc. Ac. Nat. Sci. Philad. ser. 3, vol. vi. p. 81. 

 Three cycloid scales and a few detached caudal rays. 



Remarks on Vertebrate Fossils from the Phosphate Beds of 



South Carolina. Proc. Ac. Nat. Sci. Philad. ser. 3, vol. vi. pp. 

 114, 115. 



Proroziphius chonops (Ziphioid cetacean, n. sp.) described. 



Lydekker, R. Pala^ontologia Indica. Indian Tertiary and Post- 

 tertiary Vertcbrata. Vol. i. 2, ser. x. 2. Molar Teeth and other 

 Remains of Mammalia, pp. 1-69, plates iv.-x. Mem. Geol. Surv. 

 Ind. 

 The first part treats of all the species of fossil Rhinoceros ; and the 

 second describes the molars of other genera, chiefly Ungulata, but also 



b2 



