NOTES ON THE ANATOMY OF A FORM OF CYCLOPEAN. 31 
Notes on the Anatomy of a form of Cyclopean, with 
Remarks on the Significance of Cyclopeans. By R. 
Broom, M.B., C.M., B.Sc., Hillgrove, New South Wales. 
[Read 24th April, 1894.] 
SEVERAL years ago I exhibited to the Society an unusual form of 
abnormality in the head of a lamb—apparently a form of Cyclopean 
—and promised to communicate to the Society the result of my 
detailed examination of its anatomy. 
The lamb itself was of average size, and, with the exception of 
the peculiarity of the head, was well-developed. As regards the 
head, the abnormality consists in arrested development of the face 
and the absence of eyes, but with well-developed lower jaw and 
ears normally placed. The facial region is flattened, and is quite 
devoid of any form of proboscis. The lower jaw projects $ in. 
beyond the aborted face, and the mouth is fairly well completed 
by a thin flat triangular upper lip, devoid of any cartilage or bone. 
On more careful examination, there is found to be an attempt at 
the formation of eyelids. At the point where the eye should have 
appeared, had the case been that of a normal Cyclopean, there is 
a little inverted triangular space ,5, in. from side to side and ,%, in. 
from above downwards. The three sides of this small triangular 
interval are in reality three minute eyelids. Within the eyelids is 
an irregular epidermal structure, from which at the lower part 
projects a small warty growth—prohably an attempt to form cornea 
and lens. : 
All that there is to suggest a snout is the presence, between the 
aborted eye and the upper lip, of a small patch of skin with slightly 
thickened epidermis and with very short hairs radiating from the 
centre. 
On removing the skin, there is found immediately beneath the 
frontal bone, and occupying the situation of the orbit in ordinary 
Cyclopeans, a flattened space # in. from side to side and nearly 
