368 DISTORTED SPECIMEN. 
Fig. D represents a curious species, called from its shape Discopora patina, the former 
word being of Greek origin and given in allusion to its disc-like form, and the latter being 
a Latin word signifying a flat dish like our present champagne glasses. The numerous pores 
or orifices through which the animal protrudes, are seen upon the surface. A magnified 
example of the same species is seen at Fig. E, having been broken asunder in order to show 
the manner in which the cells are massed together, so as to produce a honeycomb-like aspect 
at their mouths. If the reader will compare this with the last-mentioned species, the evident 
connection between the two will be readily perceptible. 

POLYZOA. 
A. Alecto dichotoma. B. Alecto dichétoma. x ©. Tubulipora serpens. D. Discopora patina. 
E. Discépora patina. x F. Discépora patina. x \Contorted.) 
(The sign x signifies that the object is magnified.) 
A very remarkable modification of the same species may be seen, rather magnified, at Fig. 
F. The original gemmule from which the whole mass sprang had made a mistake in its settle- 
ment, having fixed itself upon a slender stem where it could find no space for its expansion 
into the normal circular form. Being fixed, it could not move, but philosophically made the 
best of the situation, and finding itself unable to spread into a single disc-like body, and 
equally unable to extend beyond the supporting substance to which it was affixed, adopted a 
compromise, and coiled itself into the singular form here represented. 
Our next group of 
polyzoa exhibits some 
very remarkable forms. 
At Fig. A is seen a speci- 
men of the Serialaria 
lendigeri, a species which 
without the aid of a lens 
presents no particular 
points of interest, but, 
when magnified, is seen 
to be a really curious 
being. Two branches of 
this creature are repre- 
sented at Fig. B, as seen 

POLYZOA. when moderately magni- 
A. Serialdria lendigeri. B. Serialaria lendigeri. x C. Serialdria lendigert. x x , 
D. Bowerbankia imbricata. E. Bowerbénkia imbricéta. x Wen Alene fied, and the further 
The sign x signifies that the object is magnified details of its structure 
are given at Fig. C, where 
che polypes are shown protruding from their bases, and the peculiar dottings of the cells 
are seen. It will be noticed that the cells are gathered into groups, connected with each 
other by the stalk-like processes of the polyzoary. 
