Zoological Society. 137 



with the displacement of denser and more resisting matter ; it may 

 be said, indeed, to swim in the earth. 



" The following admeasurements are from the larger of the two 

 animals. 



ft. in. lines. 



From the snout to the end of the hind-flippers 3 



tail ... 2 7 6 



commencement of the fore- 

 flippers 10 



Circumference of the body, taken behind the fore- 

 flippers 1 10 



of the tail, behind the hind-flippers .030 



Length of the stomach 1 5 



Circumference of widest part, when distended, .... 1 2 



Length of intestinal canal 42 10 



of ccecum 10 



■ of large intestines 2 0." 



Mr. Owen also read " Notes on the anatomy of a young Weasel- 

 headed Jrmadillo, Dasypus 6-cinctus, Linn., which was brought forth at 

 the Society's Gardens on the 3rd of September, and died on the 16th 

 of November. It had nearly acquired its full growth, and had increased 

 in weight during that short period 52oz. 2dr. 

 " Its admeasurements were as follows : — 



in. lines. 

 From the end of the nose to the setting on of the tail 1 1 3 



to the vertex 3 6 



From the vertex to the first band 2 6 



Breadth of the head across the eyes 2 3 



"This species is of a darker colour and more hirsute character than 

 the nine-banded. Armadillo, recently described (p. 65.). Its head is 

 shorter and broader, and the coronal plate of a triangular, instead of 

 an oval, form. The middle bands also become more gradually blended 

 with the last portion of the armour, and the tail is much shorter, mea- 

 suring only 4^ inches in the present species, while in the nine-banded 

 it is nearly 9 inches in length. The cars, though of the same form, 

 are also proportionally shorter, being but 1 inch in length and half an 

 inch in breadth. The most important differences, however, are in the 

 additional toe on the fore-foot of the Weasel-headed species, and the 

 additional teeth implanted in the intermaxillary bones. Of these this 

 young animal had already acquired its full complement, having 9 — 9 

 in the upper jaw, and 10 — 10 in the lower, all of one character, sim- 

 ple, cylindrical, and separated by interspaces. There are also remark- 

 able differences in the forms and proportions of the scales in diff^erent 

 parts of the armour of the two species.* 



" Witli respect to the large intestines a remarkable difference pre- 

 sented itself in tlie presence of two short but wide cceca, between 

 which the small intestine entered the colon, and terminated. The 

 largest of these pouches was very thin in its coats, and its length was 



tion. 



• For the anatomical dctailK which immediately followed this descrip- 

 m, wc refer to the " IVotecdinfjs " of the Conmiitteo. — Emi. 



N. S. Vol. 11. No. G2. Fc6. 18132. T 



an 



