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Nachdruck verboten. 
The Brain of Anniella, pulehra‘). 
By Rurn D. Eppy. 
With 14 Figures. 
This species of the California limbless lizard is classified by CoPE 
as belonging to the Anniellidae, though sometimes placed in the 
Amphisbaenidae. This species was usually brought into the laboratory 
by ranchers who found them buried in the soil of their orange orchards. 
The lizard is from 115 mm to 215 mm in length, the body nearly 
cylindrical and tapering at both ends; gradually at the posterior end in 
the long, slender tail, and more abruptly in the snout of the anterior 
portion of the head. The cranium is little if any wider than the body 
proper and is roofed with several plates. Most of the specimens were 
preserved in formalin, though some were in alcohol and one in ZENKER’S 
fluid. In some the entire head, imbedded in parafin or collodion was 
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a pate. Ae 4 
sectioned; in others the brain was removed. These brains averaged ° 
about 5 mm in length and two millimeters at the greatest width of 
the fore-brain. 
The brain is unlike that of the snake and lizard, in that the ol- 
factory bulbs are united closely with the fore-brain instead of being 
isolated at the ends of long olfactory tracts; the cerebellum is greatly 
reduced; the optic lobes are much smaller, and the parts possess certain 
peculiarities not found in these compared brains. The olfactory lobes 
and Prosencephal form nearly two thirds of the entire 
length of the brain. They are simple in structure with cavities 
of characteristic shape (Figs. 7, 8 and 9). The lobes of the fore-brain 
are somewhat peculiar in shape. The anterior portion is depressed 
dorsally and laterally for perhaps a third of a millimeter and the 
brain reaches its extreme lateral expansion in the posterior portion 
(Figs. 3 and 4). | 
The epiphysis of the Diencephal is clearly seen on the dorsal side, 
and is quite long and complex in structure (Figs. 3, 4 and 9). The 
hypophysis is very small and was not clearly demonstrated in any of © 
1) Contribution from the Biological Laboratory of Pomona College, 
Claremont Cal. 
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