1086 Growth, its Conditions and Variations, (Noven, 
Reproduction is by both transverse and longitudinal fission 
In Fig. 3 is represented the ventral, and in Fig. 4 the lated | 
aspect magnified about 600 diameters. To designate the species 
it may appropriately bear the name of the host and be Chilate 
megalotroche. 
Fig. 3. Fig. 4. Hi 
Fic. 3.—Chilodon megalotroche, n. sp , ventral aspect. X 600. FIG. 4: 
x 600. 
don megalotroche, lateral aspect. 
x 2 ont 
Chilodon megalotroche sp. nov.—Body soft, flexible, ovate, the length wy a 
and one-half the breadth, somewhat widest posteriorly ; the anterior and | 
lip short, obtuse, inconspicuously directed toward the left; : é 
naked, the ventral one flat, finely striated and entirely clothed with ee : 
cilia, those of the anterior extremity somewhat more conspicuous ; thea Ji andet 
shallow, directed backward and outward from the pharyngeal Oren P Ei 
insufficient amplification presenting the aspect of a single projecting "e í 
ovate, granular, mesially placed in the posterior body-half; pharyngeal of body 
more or less curved; contractile vesicles numerous, scattered. u a 
zz to zig inch. Habitat, ectoparasitic on the social rotifer Megalotr 
10: 
GROWTH, ITS CONDITIONS AND. VA 
BY CHARLES MORRIS. | a 
re remarkab : 
E the story of organic life there is nothing Mor 
- than the extraordinary diversity in size between 
RIATIONS 
mature an | 
while another gains the bulk of an elephant or whale or, the 
the lowly moss fails to attain the size of its giant bro i 
- oak, It might be simply answered that this 1s 4 we 
tion of nutrition, some forms being better adapted = of o 
food than others. But the question cannot be disposed ey 
