12 Mamm. 
MAMMALIA. 
Class Mammalia. 
Grade 1. Monotrema. 
Grade 2. Ditrema. 
Branch a. Marsupialia. 
Orders — 1. Baryopoda ; 2. Rhizophaga ; 3. Macropoda ; 
4. Carpophaga ; 5. Feclimana ; 6. C'antharo- 
phaga ; 8 . Edentula. 
Branch b. Placentalia. 
Sub-branch a. Typidentata. 
Orders — 1. Proinsectivora ; 2. Insectivora ; 3. Carnivora ; 
4. Ungulata ; 5. Amblypoda ; 7. Sirenia ; 
8. Toxodontia ; 9 . Rodentia ; 10. Proboscidea ; 
11. Hyracoidea ; 12. Chiroptera ; 13. Pro - 
simice ; 14. Si mice. 
Sub-branch 5. Edentata. 
Orders — 1. Bradypoda ; 2. Effodientia. 
Lataste, F. Analyse Zoologique de Pelotes de Rejections de Rapaces 
Nocturnes. Ann. Mus. Genov. (2) vi, pp. 471-518. 
An analysis of the “ castings” of Owls has shown that these consist 
much more largely of the remains of Soricidce than of those of Muridce , 
from which it is inferred that Owls are not beneficial to agriculture and 
horticulture, as had been supposed. 
. Des Dents Exceptionnellement Monophysaires chez les Mammi- 
f&res Diphyodontes. CR. Soc. Biol. (8) v, pp. 37-41. 
In this memoir the term monophysaires is applied to teeth like the true 
molars of Diphyodonts, which have no predecessors ; while teeth having 
such predecessors are termed diphyosaires. Instances a young Rabbit, in 
which there are teeth regarded as the milk-predecessors of the large 
incisors. Also a skull of Phocu grcenlandica t showing throe milk incisors, 
the milk-canine, and the last three milk-molars; it being stated that the 
first and second incisors are usually not developed. In the Badger it is 
stated that there are four milk-molars. The question is then discussed 
as to the homology of the first cheek-tooth of the Dog, Pig, &c., and the 
conclusion is reached that it is a premolar. The loss of the milk-incisors 
in Rodents is considered to support the view that the milk-teeth are the 
elder. 
>. Des Deux Dentitions, de Lait ou Permanente, des Mammiferes, 
Quelle est la Dentition Primitive. T. c. pp. 59-61. 
Disputes the arguments of W. H. Flower and 0. Thomas [Zool. Rec. 
xxiv, Mamm. p. 55], that the milk-dentition is the elder, and concludes 
that the most primitive Mammals were diphyodont, having inherited their 
milk-teeth from Reptiles or Amphibia. 
« . Considerations Positives sur les Deux Dentitions des Mammi- 
feres. T. c. pp. 203-206. 
A further discussion on the subject of the previous paper. Considers 
that a diphyodont dentition is the typical one, and adopts the opinion 
