Hirudisomatid Millipeds 
121 
Table 2. Segment Numbers and Average Lengths (mm) of O. anura (samples at 
one locality are combined; lengths averaged for individuals with same segment 
number, n in parentheses). 
Males Females 
County 
Locality 
Segs. 
Lengths 
Segs. 
Lengths 
BC 
1.9 mi SE 
28 
8.3 
30 
9.4 
Hope 
(2) 25 
6.1 
26 
6.9 
24 
5.7 
25 
6.1 
23 
4.9 
(2) 24 
5.8 
22 
5.6 
(3) 23 
5.9 
19 
4.1 
22 
5.0 
19 
3.7 
(2) 18 
3.9 
(2) 14 
2.6 
BC 
Manning 
26 
6.4 
26 
7.1 
Prov. Pk. 
22 
4.4 
25 
5.5 
Clallam, WA 
Olympic 
27 
6.5 
27 
5.0 
Hot Spgs. 
25 
5.1 
24 
4.8 
23 
4.0 
Jefferson, WA 
5.5 mi S 
34 
9.1 
27 
7.1 
Brinnon 
31 
8.0 
(2) 26 
7.0 
29 
8.8 
(5) 27 
6.8 
26 
6.0 
25 
6.0 
23 
5.5 
Mason, WA 
Kamilche Pt. 
40 
12.9 
21 
4.3 
25 
6.0 
22 
5.0 
King, WA 
Federation For. 
32 
9.3 
St. Pk. 
King, WA 
Saltwater St. Pk. 
25 
5.7 
31 
8.6 
Thurston, WA 
Puget 
28 
7.3 
30 
7.0 
25 
6.1 
29 
7.1 
25 
6.4 
Pierce, WA 
Mt. Rainier 
22 
5.0 
29 
8.1 
Nat. Pk. 
