2 Mamm. 
II. MAMMALIA. 
INTRODUCTION. 
The number of books and papers recorded for 1901 somewhat exceeds 
those enumerated in 1900; that list being in excess of the one for the 
previous year. 
In zoological circles the first year of the 20th century will probably be 
known as the “okapi year.” Of even greater importance than the okapi is 
the discovery in Egypt of Eocene mammals (described by Andrews) which 
seem to go a long way in solving the puzzle of the origin of the Proboscidea 
and are also of the highest interest from a distributional point of view. 
Grandidier’s description of Edentate remains from Madagascar, appa¬ 
rently referable to the ground-sloths, is likewise a fact of first class 
importance. Abel’s investigations on the presence of a dermal armour 
in extinct Cetaceans also demand special notice; while Wortman’s de¬ 
scription of the Eocene Carnivora of the United States has revealed many 
interesting facts. 
Among other discoveries, reference may be made to Schlosser’s deter¬ 
mination of a new genus of Anthropoid ape from the Tertiaries of the 
continent, and also to Satunin’s description of a hitherto unrecognized 
generic type of murine rodent from the Caucasus. Lankester’s redeter¬ 
mination of the affinities of JEluropus is likewise worthy of mention. 
The catalogues of North American Mammals by Elliot, Miller and 
Rehn are works that will prove invaluable to the systematist ; while to 
the distributionalist Blanford’s memoir on the geographical divisions of 
the Indian fauna is of the highest interest. 
The investigation by Bensley into the phylogeny of marsupials 
promises to revolutionize our conception of the relationship and history 
of that group. In this connection reference may be made to Gronberg’s 
studies of mammalian ontogeny. 
Johnson’s work on the minute structure of the retina of the mammalian 
eye has opened up a new field of investigation. Koelliker’s 'Study of 
the medulla oblongata, and Ziehen’s description of the nervous system 
of marsupials and monotremes are likewise valuable anatomical works. 
Neither must Major’s investigations into the relationship between the 
anthropoid and lemuroid skull, or Tims’s tooth-genesis in the Caviidce 
be passed over without notice. 
No relaxation in systematic work is noticeable during the year, the chief 
English labourers in this field being Bonhote, De Winton, and Thomas. 
It is sincerely to be hoped that generic names of the nature of those 
proposed by Ameghino will not come into fashion. 
I. TITLES* 
1. Abel, 0. Untersuchungen ueber die fossilen Platanistiden des "Wiener 
Beckens. Denk. Ak. Wien lxviii, pp. 839-874, pis. i-iv, 1899. 
[Cetacea.'] 
2. -. Les Dauphins Longirostres du Balderien (Miocene Superieur) 
des Environs d’Anvers. Mem. Mus. Belgique i, pp. 1-95, pis. i-xv. 
[Cetacea.] 
3. -. Ueber die Hautbepanzerung fossiler Zahnwalle. Beitr. Pal. 
Oesterr.-Ung. xiii, pp. 299-317, pis. xx & xxi. [Cetacea.] 
* An asterisk prefixed to a quotation indicates tliat tlie Recorder has not seen 
the Journal or Work referred to. 
