1886,] Zoölogy. 735 
worthy of the most minute and careful investigation; but Mr. 
Smith has not yet been able to make it. He gives, however, the 
the visual elements. Sometimes the eyes are highly modified (as 
in Pentacheles), and here all the species have probably been long 
4 inhabitants of deep water; when the eyes are less modified, or 
obsolescent, the species are much more closely allied to shallow- 
water forms. Many Decapods have the eggs large in size and 
small in number, but this is not true of all; when the eggs are 
large, development is, as in Bythocaris leucopis, abbreviated. 
Tue Mosr Sournern SALMon.—I owe to my friend, Professor 
Lupton, two specimens of a black-spotted trout from a locality 
far south of any which has hitherto yielded Salmonide. They 
are from streams of the Sierra Madre, of Mexico, at an elevation 
of between 7000 and 8000 feet, in the southern part of the State 
of Chihuahua, near the boundaries of Durango and Sinaloa. The 
Specimens are young, and have teeth on the basihyal bones, as in 
mo purpuratus, which they otherwise resemble.—Z. D. Cope. 
Tue HABITS or EvBLEPHARIS VARIEGATUS BAIRD.—This very 
Pretty lizard is the only species of the Eublepharide thus far 
found in the United States. Only one other species of that family 
1s found in America, the Coleonyx elegans of Mexico and Central 
America. I found the former rather abundantly in the rocky hills 
of the first plateau northwest of San Antonio, in Texas, but did not 
observe it in that region north of that point either on the Guada- 
lupe or Llano. It is found in holes under stones, towards even- | 
` 
Its movements are quick but feeble, and its short legs forbid the 
Speed of other lizards. Coleonyx is one of the few genera wt 
Gecconidæ which have eyelids, and as these are thick, and their — 
; Movement in winking is slower than in other lizards, the physiog- 
_ POMY is quite peculiar. When handled, this species chirrups 
_ And squeals feebly like a singing mouse. One specimen which I ~ 
= took was about to shed its skin, so I placed it in a jar to observe 
the process, This took place in the night, for next morning it 
Was so clean and its color so bright, that it looked as though 
gotten up for some special occasion. As no trace of the skin 
could be found, I suppose that it ate it, after the manner of the 
Batrachia. In life, the colors are very elegant; the pale- a 
qm GS are citron-yellow, and the brown ones bright chestnut. 
The inferior surfaces and all parts of the limbs are flesh or rose 
i 
A specimen recently sent to the Smithsonian Institution licks . 
