20 
PACIFIC SCIENCE, Vol. V, January, 1951 
TABLE 1 
Reported Measurements of Adult Female Eyeworms 
MEASUREMENT 
SCHWABE 
(Oahu, T.H.) 
1948-49 
RANSOM ' 
(Florida) 
1904 
MAGALHAES 
(Brazil) 
1888 
SWEET 
(Australia) 
1910* 
FIELDING 
(Australia) 
1928* 
Length f 
15-17 
12-18 
I6.2t 
13.5-20 
15.5-17 
Width (ant. end) 
69.1-75 
50 
Width (max.) 
369-538 
400-430 
270-390 
270-420 
Width (at anus) 
92 1 
90-100 
Esophagus length t 
1.55t 
1.5 
Esophagus width (post, end) 
107t 
80-100 
Intestine width (at esophagus) 
61. 5t 
Intestine width (max.) 
77-100 
100 
Anus to post, end 
446-477 
400-530 
400-530 
390-440 
364-509 
Protostom length 
15.4-22 
15-25 
Protostom width 
35.7t 
25-30 
Mesostom length 
22-31 
25-30 
Mesostom width 
17.3t 
20-25 
Excretory pore from ant. end 
410t 
350-400 
Nerve ring from ant. end 
232J 
250 
220-300 
270-320 
Vulva diameter 
46-61 
40-50 
Vulva to post. endf. 
1.23-1.31 
1-1.4 
1-1.33 
0.78-1.07 
0.91-1.55 
Vagina length f 
2 
Vagina width (near uteri) 
57.U 
Vagina width (near vulva) 
36t 
Uteri width 
123-146 
100 
Ovary width 
22-30 
^Oxyspirura parvovum. 
fThese measurements in millimeters; all others in microns. 
JAverage measurements (10 specimens). 
TABLE 2 
Reported Measurements of Adult Male Eyeworms 
MEASUREMENTS 
SCHWABE 
(Oahu, T.H.) 
1948-49* 
RANSOM 
(Florida) 
1904 
SWEET 
(Australia) 
1910t 
FIELDING 
(Australia) 
1928t 
Length! 
9.2-13 
12-14 
9.2-14.5 
8.2-15.47 
Width (ant. end) 
75 
50 
74 
Width (max.) 
339 
200-350 
260-330 
254-327 
Width (at cloaca) 
143 
65-150 
136 
Esophagus length! 
1.37 
Esophagus width (post, end) ‘ 
107 
Intestine width (max.) 
111 
Buccal capsule length 
53.5 
Excretory pore from ant. end 
410 
Nerve ring from ant. end 
285 
Cloaca to post, end 
285 
320-400 
253-390 
Long spicule length! 
4.15 
3.64-4.55 
Short spicule length 
232 
214-235 
*Average measurements (10 specimens). 
\Oxyspirura parvovum. 
JThese measurements in millimeters; all others in microns. 
