TITLES. 
Mamm. 17 
considering that they are more probably Oligocene or Miocene, adding 
that he cannot accept Ameghino’s derivation of Chalicotherium from 
Homalodontotherium. 
[Osborn, H. F.] Fossil Mammals of the Upper Cretaceous Beds. Bull. 
Amer. Mus. v, pp. 311-330. 
It is shown that the Multi tub erculata described by Marsh from the 
Laramie under a variety of new generic names are referable to Cope’s 
genera Ptilodus and Meniscoessus, the former of which is typically from 
the Puerco Eocene. The Trituberculate types named from the Laramie 
are also partly reduced, although from the nature of the material this 
cannot be done so completely as in the Multituberculates. It is urged 
that the Laramie fauna is closely related to that of the Puerco beds, and 
widely different from that of the Upper Jurassic. As they pass from 
the Jurassic to the Tertiary, the Plagiaulacidce exhibit a reduction in the 
number of the premolars, accompanied by an increase in the number of 
grooves on tho last tooth of that series. 
& Woutman, J. L. Arlionyx: a New Genus of Ancylopoda. 
Bull. Amer. Mus. v, pp. 1-18, figg. Also Nature, xlvii, pp. 610 & 
611. [See p. 35, Ancylopoda.] 
Parona, C., & Cattaneo, G. Note Anatomiche e Zoologiche sull 
Hcterocephalus , Ruppell. Ann. Mus. Genova (2) xiii, pp. 419-447, 
pi. xiii. 
Pavlow, [Madame] M. Note sur un nouveau Crane d 'Amynodon. Bull. 
Soc. Moscou, 1893, pp. 37-42, pi. iii. 
The American fossil, on which this note is based, is provisionally 
named A mynodon , aff. intermedium. 
Petenyj, — . [See Ciiyzer, C.] 
Pi ana, G. P. Di una speciale disposizione della musculatura nelle 
radici della vena porta del Cavallo e nelle radici delle vene pulmo- 
nari del Bue. Monit. Zool. Ital. iv. pp. 60-62. 
Pohlig, H. Eine Elephantenhohle Siciliens, und die erste nachweis des 
Cranialdomes von Elephas antiquus. Abh. Bayer. Ak. xviii, pp. 73- 
109, pis. i-v. 
. Le Premier Crane Complet du Rhinoceros ( Camopus ) occidental is, 
Leidy. Bull. Soc. beige Geol. vii, pp. 41-44, pi. iii. 
Pollard, E. C. [Miss]. Tho Succession of Teeth in Mammals. 
Natural Sci, ii; pp. 360-363. 
A summary of recent views on this subject. 
*Pomel, A. Monographie Iconographique du Bubalus antiquus , Duvernoy. 
See C.R. Ac. Sci. cxvi, pp. 1346-1349. 
Pouchet, G. Anciens Echouages de Cetaces du ixe au xviie Siecle. 
Mem. Soc. Biol. 1893, pp. 97-104. 
1893. [vol. xxx.] c 2 
