SPECIAL WORK. 
Mamm. 45 
X. fPoEBROTHERIIDvE. 
Scott, W. B. On the Osteology of Poebrotherium : a contribution to 
the Phylogenyof the Tylopoda. J. Morph, v, pp. 1-78, pis. i-iii. 
After discussing certain problems in evolution ; the author describes 
a complete skeleton of Poebrotherium wilsoni , and then proceeds to the 
consideration of the phylogeny of the Tylopoda. It is considered that 
Procamelus may have given rise to Llamas and Camels, but that Ilomo- 
camelus is off the direct line, although it may have been the parent of 
Holomeniscus and Eschatius. The series is traced down through Homa- 
codon (? = Dichobunus) to the tritubercular Pantolestes. Rutimeyer’s 
view that the Tylopoda have acquired their selenodontism independently 
of the Pecora is supported. 
y. tA.NOPLOTHERIID2E. 
For identification of the supposed Condylarthrous genus Ilyracodonto- 
therium with Diplobune, see Sciilosser, supra , p. 37. 
2. fANTHRACOTHERIID.®. 
Filiiol, H. Observations relatives & la Tuberosity qu’on observe sur 
certains Maxillaires d’ Anthracotherium magnum. Ann. Sci. Nat. xii, 
p. 39. 
. Observations concernant le Structure de la Tete de V Anthraco- 
therium minimum. T. c. p. 64. 
. De la Dentition Superieure de V Anthracotherium minimum. Bull, 
Soc. Philom. (8) iii, pp. 89-91, figs. 
. Note concernant l’Etude d’une T£te d’ Anthracotherium minimum 
(Cuv.) T. c. pp. 162 & 163, pi. v. 
In the first note it is concluded that the presence or absence of a 
tubercle on the mandibles of A. magnum may denote sexual differences.. 
The other notes describe a fine skull of A. minimum , which is said to 
approximate to that of Hyopotamus. 
Squinabol, S. Cenni Prelirninari sopra un Cranio ed altre Ossa di 
Anthracotherium magnum , Cuv., di Cadibona. Atti Soc. Lig. Sci, 
Nat. & Geogr. i, pt. i, 1890. [Omitted from Zool. Rec. xxvii.] 
. Rivista dei Grossi Anthracotherium di Cadibona. Boll. Soc. geol, 
Ital. ix, pp. 516-571, pis. xvi-xxi. 
Describes and figures a number of remains of Anthracotherium from 
the Italian Tertiary, which are referred to four new species. 
f Anthracotherium gastaldii, \kowalevskyi , f ligusticum, fzignoi, Miocene, 
Cadibona, Squinabol, Boll. Soc. geol. Ital. ix, p. 566 : n. spp. 
