THE AMERICAN MUSEUM JOURNAL 
form of the Ilo moth (Automerts io). The left side of the specimen 
shows, in the coloration of the wings, head, thorax and legs, and 
the structural characters of the antenne, the features of the nor- 
mal male, while the corresponding right side shows the features 
of the normal female, except the hind leg, which is like that of the 
male. In shape and size, the abdomen is like that of the female, 
while in color it is like that of the male, except that the under side 
is dull brown, as in the female. 
NEWS NOTES. 
=yEPARTMENT OF VERTEBRATE PALAON- 
Sil TOLOGY.—The preparation of the series of skel- 
etons and bones representing the development of 
the horse, provided for by the liberality of William 
C. Whitney, Esq., is progressing satisfactorily. 
The skeleton of the three-toed horse, Anchitherium, which was 
discovered last season, has been mounted and placed on exhibi- 
tion in the Hall of Fossil Vertebrates. This specimen has been 
the means of determining positively the occurrence of this marsh- 
living horse in this country, and has enabled Professor Osborn 
and his assistants to clear up the doubtful relations of many 
specimens which were obtained by Professors Leidy and Cope, 
but which were too fragmentary to be classified satisfactorily. 
Anchitherium was an animal about as large as a small Shetland 
pony, and differed especially from the Plains horses by having 
short-crowned teeth and by its broad-spreading three-toed feet 
which enabled the animal to walk over soft ground without 
sinking. 
The Museum has also secured recently from South Dakota a 
considerable portion of an excellent specimen of Mesohippus 
batrd1, which, together with material already in the collection, 
will make possible the mounting of a skeleton showing this stage 
in the development of the Horse. Mesohtppus was about the 
size of a sheep. 
In preparing the comparative series of skeletons showing the 
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