30 
PLATE X. 
Reproductive cysts (continued) : 1, 1a, first Stage; 2,3, 4, 26, bi-segmentation or di- 
vision into two parts; 5, 6,7,8,9, segmentation into four parts; 10, 11, 12, 13, 14, 15, 
16, 17, 18, segmentation into eight parts—greatly enlarged. (Original, ) 
1B 
LATE XI. 
Developed or free Anguillule within the reproductive cysts: 1, free Anguillula 
Within cyst not yet broken; 2, 3,7, cyst broken; 4, 4a, empty shell of eyst from which 
Anguillule have emerged; 5, young worm casting skin; 6,empty skin cast by young 
worm—-greatly enlarged. (Original. ) 
PLATE XII. 
Growth of Anguillule: 1, cast skin 
bluutness at one end, with fissure hay 
of young worm; 2,3, 4,5, 6,7, 8, worms showing 
ing a circular, hinge like termination at A, and 
granular masses of cells within—greatly enlarged. (Original. ) 
PLATE XIII. 
Growth of Anguillulse (continued): 1, 2,3, worms showing masses of fine cells irrecu- 
larly arranged within, and fissure at blunt end with circular, hinge-like termination 
at A—greatly enlarged. (Original. ) 
PLATE XIV. 
Growth of Anguillule and changes 
within the female: 1, 2, female worms showing 
granular masses within; 3,4, 5,6, changes in shape in the female, preceded by for- 
mation in upper and lower thirds of body of dark masses of cells, A, B, C, which 
eventually unite—greatly enlarged. 
(Original. ) 
PLATE XV. 
Changes within female Anguillule 
(continned): 1, 2, 3, enlargements in shape of 
the female, with formation of masses of cells at A—greatly enlarged. (Original. ) 
PLATE XVI. 
Changes in form of female Anguillule: 1-15, outlines showing changes in form, 
from leaving the reproductive cyst until the female is herself filled with cysts, also 
showing changes in the form of the h 
larged. (Original.) 
ead and disappearance of the tail—greatly en- 
PLATE XVII. 
Changes in form of female Anguillul 
#e (continued): 1-9, outlines of changes in form 
of body and head, with the disappearance of the tail—greatly enlarged. (Original. ) 
PLATE XVIII. 
Gravid female Anguillula, showing 
contracted head and neck as in some females, 
and the arrangement of cysts in the uterus—greatly enlarged. (Original. ) 
PLATE XIX. 
Arrangement of cysts in uterus of fe 
male Anguillula and expulsion of young worms ; 
through fissure in the head—greatly enlarged. (Original.) 
