CYCLOPS. 
201 
largest of which is terminated by two or three strong, 
horny teeth. The posterior or second pair of foot-jaws 
(t. XXIV, f. d , e) are divided to the base into two parts ; the 
internal (f. e), which Jurine (who calls these organs hands) 
compares to a thumb, is much smaller than the other, and 
is formed of three articulations ; the first of which, much 
the longest, has on the inner edge several rather strong, 
plumose spines, or setae ; the second, very short, sends off 
one long spine ; while the third, which is the smallest, is 
terminated by three spines. The external division (f. d) 
is also composed of three articulations, at the base of 
the first of which is attached the thumb ; this joint is 
much the longest, and has on internal side two tubercles, 
from each of which issues a plumose spine, while a third, 
longer, springs from near its articulation with the second 
joint. This second joint is in form of a strong claw, and 
has attached to its upper edge the third joint, in form of 
a claw also, but much smaller than preceding. These 
claws are called fingers by Jurine. 
The feet are ten in number, or five pairs. Tour pairs 
spring from the four thoracic rings, and are all alike. 
Each foot is double, or composed of two branches, arising 
from a common base (t.XXIV,f./) ; each branch consists of 
three articulations, and each articulation is furnished with 
plumose setae, the terminating one having six or seven. 
The first segment of the abdomen is very small, and has 
the fifth pair of feet (t. XXIY, f. g) attached to it. These 
are quite rudimentary, and differ in the two sexes. In the 
female it consists of a short body, of two segments ; the 
first broader, and giving off from its outer edge a sharp 
spine ; the second narrower, giving off from its internal 
edge a short spine, and terminating interiorly in a long, 
slightly-curved spine. These organs are what Jurine 
describes as the “fulcra, or supports.” In the male they 
consist of an oval body, composed of three segments, 
diminishing each in size as they descend, and terminating- 
in a sharp, prolonged point. These were considered the 
male organs by Jurine. The second is the largest. 
