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THE SLENDER CEE Cl LI A. 
Among these remarkable animals, the orders multiply themselves rapidly. The Pseudo- 
. phidia, or False Serpents, include some very curious species, whose position remained long 
unsettled. There is but one family, and all its members have very long and cylindrical 
bodies, no limbs, a very short tail, and a smooth wrinkled skin, in which are embedded a 
multitude of minute scales. The two worm-like creatures, the White-bellied Csecilia and the 
Slender Csecilia, are good examjfies of this very remarkable family. * 
The name Csecilia is derived from a Latin word signifying blindness, and is given to the 
creature because the eyes are always minute, and in some species are hidden under the skin. 
The White-bellied Cecilia inhabits Southern America, and, like the rest of its kin, bur- 
rows under the ground after the fashion of the earth-worm, to which it bears so strong an ex- 
ternal resemblance, preferring wet and marshy ground to dry soil. Its body is rather thick and 
cylindrical, and is surrounded by about one hundred and fifty incomplete rings. The muzzle 
is rounded and so is the tail. There are teeth in the jaws and on the palate, all of which are 
short, strong, and conical ; the tongue has a curiously velvety feel to the touch. Below each 
nostril there is a small pit, sometimes taken for a second nostril. 
The color of the White-bellied Csecilia is blackish, marbled with white along the under 
surface. 
THREE-TOED CONGO SNAKE. —Murcenopsis tridactyla. 
The Slender Csecilia derives its name from its slight form. In this species the body is 
smooth throughout the greater part of its length, but towards the tail the skin is gathered into 
fifteen circular folds pressed closely together. The muzzle is rather broad and rounded. The 
body of the Slender Csecilia is extremely elongated, being about two feet in length, and not 
thicker than an ordinary goose-quill. Its color is almost wholly black. 
Tile small but very remarkable order of animals which stands next in our list, has 
proved an insoluble enigma to the systematic zoologists, who not only are unable to decide 
upon any order to which it may belong, or in what precise relation it stands to other reptiles, 
but are not even able to announce positively its class, or to say whether it is a reptile or a fish. 
The three species which comprise this order — if indeed they do not form a separate class — are 
so fish-like in most parts of their anatomy and their general habits, that they might be regarded 
as belonging to the fishes, were not they allied to the reptiles by one or two peculiarities of 
their structure. Some accurate and experienced anatomists accordingly place these creatures 
among the fishes, while others, equally experienced, consider them as belonging to the reptiles. 
