Hirudisomatid Millipeds 
119 
Napa Co., Clay (Kiel) Cave, 3 mi (4.8 km) N St. Helena, F, 26 November 
1959, R. Graham (FSCA). San Mateo Co., 6.5 mi (10.4 km) ESE 
Half Moon Bay, along Purisima Cr., juv., 25 December 1974, AKJ 
(VMNH); 6 mi (9.6 km) SE Half Moon Bay, 2M, 3F, 1 June 1957, 
juv., 21 July 1957, R. O. Schuster (NMNH); and Woodside, M, 2F, 
18 January 1947, P. H. Arnaud (NMNH). Santa Clara Co., along 
Stevens Cr., M, 14F, 2 June 1957, R. O. Schuster (NMNH, VMNH). 
Santa Cruz Co., Felton, F, 6 February 1949, P. H. Arnaud (NMNH); 
and 9.5 mi (15.2 km) NE Soquel, 5M, 4F, 31 December 1956, S. 
M. Fidel (VMNH). Sonoma Co., 2 mi (3.2 km) N Ft. Ross, M, 19 
July 1962, V. Roth (AMNH) NEOTYPE LOCALITY; and El Verayo, 
along Fowler Cr., exact location unknown, 2F, 29 November 1975, 
J. DeMartini (VMNH). 
Remarks — The holotype of E. crucis is lost, and its sex is unknown, 
as Chamberlin (1950) merely states that there was “one specimen.” 
The female holotype of H. arnaudi, collected at the same time and 
place, and by the same collector, is available and confirms Hoffman’s 
(1980) and Shelley’s (1988) beliefs that both names are synonyms 
of O. bivirgata. It displays the diagnostic striped color pattern (Fig. 
2), and the gonopods of proximate males agree with those of males 
from throughout the range of the striped species. 
Unlike most diplopod pigmentations, the stripes of O. bivirgata 
persist and are usually visible after 30-40 years in alcohol. Occasional 
specimens are pallid or nearly so, displaying only a trace of the stripes, 
but most individuals of O. bivirgata can be distinguished from sympatric 
polyzonioids by this distinctive pattern. 
Octoglena anura (Cook), new combination 
Figs. 12-15 
Hypozonium anurum Cook, 1904:63, pi. V, figs. la-d. Chamberlin, 
1911:262. Cook and Loomis, 1928:17. Chamberlin and Hoffman, 
1958:187. Kevan, 1983:2962. Scudder, 1994:22. 
Type specimens — The holotype, from Seattle, Washington, was 
type no. 791 at the NMNH (Cook 1904, Chamberlin and Hoffman 
1958), but it is now lost. Male neotype and female paraneotype (FSCA) 
collected by W. Suter, 15 August 1961, in Saltwater State Park, ca. 
18 mi (28.8 km) S Seattle, King County, Washington. 
Diagnosis — Dorsum without stripes, color pale yellow to white; 
caudal metatergal margins indistinctly upturned, caudolateral corners 
of midbody metatergites slightly but distinctly extended and rounded; 
telson broad, comprising entire breadth of caudal extremity; sternal 
lobes of anterior gonopods relatively long, widely segregated; coxal 
