6 Mamm. 
MAMMALIA. 
species the genera Acrotherium , Adinotherium, and Notoluppus , in addition 
to those identified with Nesodon by Amegliino (infra, p. 35). A cranium 
of N. imhricatus is figured, and the arrangement of the upper incisors 
shown to be different from that in Ameghino’s figure. The next two 
sections deal with Toxodon paranensis and T. parvus ( Xotodon foricurvaius , 
Ameghino). In the following section the author proposes the new 
generic name Pachynodon, in lieu of Trigodon, Haplodontheriun and 
Trachypterus, Ameghino, for another Toxodont. Among the Edentates 
the author shows that the genera Promylodon and Promegatherium are 
not separable from Mylodon and Megatherium , stating that the alleged 
occurrence of enamel in their teeth is erroneous. This is followed by the 
description of a new species of Megalonyx from Argentina. The memoir 
concludes with a notice of a Cetacean for which the new generic name 
Saurodelphis (in lieu of the preoccupied Saurocetes ) is proposed. 
. Suplementos & las Differeutes Disertaciones. Publicadas Ante- 
riormente. T. c. pp. 462-488. 
A supplement to previous memoirs, followed by criticisms on various 
species described by other writers. The first part deals with the narial 
region of the Glyptodonts, the carapace of Dcedicurus , and the tail of 
Glyptodon. This is followed by additional notes on the Equidce ; after 
which are various genera and species belonging to a number of groups. 
. [See also p. 44, Carnelidce .] 
Burne, R. H. [See p. 34, Leporidce.'] 
Buttikofer, J. Reisebilder aus Liberia. Leiden : 1890, 2 vols. 8vo, 
illustrated. 
The second volume contains descriptions and figures of several West 
African Mammals. 
Cantamessa, E. [See p. 36, Prohoscidea.] 
Capellini, G. [See p. 48, Pliijseteridce.~\ 
Chiarugi, G. Osservazioni intorno alle Prime Fasce di Svillupo dei 
Nervi Encephalici nei Mammiferi, e in particolare sulla Formazione 
dei Nervo Olfattivo. Monit. Zool. Ital. ii, pp. 47-60, pi. i, and Arch. 
Ital. Biol, xv, pp. 418-425. 
Observations on the early stages of the cerebral nerves, especially tho 
olfactory, in Mammals. 
Claypole, W. [See p. 49, Megatheriidce.'] 
Cope, E. D. On Verte.hr ata from the Tertiary and Cretaceous Rocks of 
the North-west Territory, i. The Species from the Oligoceue or 
Lower Miocene beds of the Cypress Hills. Contr. Canad. Pal. iii, 
pp. 1-25, pis. i-xiv. 
This memoir is chiefly devoted to Mammals, giving details of several 
species hitherto only known by preliminary notices. Ilemipsulodon is 
considered to be in all probability generically identical with those species 
of Pterodon in which there are four lower premolars ; its right to stand 
