352 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Diurella collaris Rousselet. 
127. After Rousselet (1896). 
Diurella brecidactyla Daday. 
128. After Daday (1889). 
Rattulus curvatus Levan der. 
129. (x 360), after Levander (1894). 
Rattulus brachydactylus Glasscott. 
130. After Glasscott (1893). 
“ Rattulus lunaris" Ehrbg. 
131. Dorsal view, after Elirenberg (1838). 
132. Side view, after Elirenberg (1838). 
Rattulus dubius Lauterborn. 
133. After Lauterborn (1894). 
Distemma setigerum, Ebr. 
134. After Ehrenberg (1838). 
Plate XV. 
135. Rattulus unidens Stenroos (x 296), after Stenroos 
(1898). 
136. Rattulus cuspidatus Stenroos (x 450), after Stenroos 
(1898). 
137. Rattulus roseus Stehroos (x 220), after Stenroos 
(1889). 
13S. “ Rattulus cimolius" Gosse, after Gosse (1889). 
139. u Rattulus calyptus" Gosse, after Gosse (1889). 
140. Elosa worrallii Lord, side view, drawn by F. R. Dixon. 
Nuttall. 
141. Elosa ■worrallii Lord, trophi, drawn by F. R. Dixon- 
Nuttall. 
142. Elosa worrallii Lord, dorsal view, after Lord (1891). 
143. Elosa worrallii Lord, section of body, after Lord 
(1891). 
144. “ Ccelopus (?) minutus ” Gosse, after Gosse (1889). 
145. Bothriocerca affinis Eicliwald, after Eiciiwald (1847). 
146. Bothriocerca longicauda Daday, after Daday (1889). 
al. alula. 
br. brain. 
c. v. contractile vacuole. 
d. a. dorsal antenna. 
e. eye. 
f. foot. 
fu. fulcrum. 
g. g. gastric gland. 
gl. gland. 
h. s liead-sheath. 
Abbreviations used in the plates. 
in. intestine. 
1. left. 
1. a. left lateral antenna. 
1. mu. left manubrium. 
1. t. left toe. 
m. mouth. 
m. g. mucus gland. 
m. r. mucus reservoir. 
mu. manubrium. 
mx. mastax. 
ce. cesophagus. 
ov. ovary. 
r. right. 
ra. ramus. 
r. mu. right manubrium. 
r. t. right toe. 
sp. spur. 
st. stomach. 
u. uncus. 
I 
