L = 2.7 mm; a = 45; b = 5.5; c = 11; V = 63
L = 2.6 mm; a = 46; b = 5.7; c = 16.7; T
remaining nearly straight when relaxed by heat; truncate
anterior and attenuated posterior termini. Labial region with
distinct lips and nerve channels, set off by depression from remainder
of body. Ovoid buccal
cavity about one and two-thirds longer than wide, with three large,
equal-sized teeth at posterior third of stoma. Amphid apertures obscure.
with nerve ring and excretory pore at anterior third, terminated by tuberculate
valve. Didelphic with distinct valves between uterus and oviducts.
Tail attentuated, conoid, without caudal glands and spinneret. Six
pairs of caudal pores usually visible (four dorsal pairs, one each at levels
of rectum, upper quarter, middle, and lower quarter of tail; two
ventral pairs, one each at middle and lower quarter). Also two pre-anal
pairs (one dorsal and one ventral) in vicinity of tail.
Male. Similar to female in details of labial, buccal, and
essophageal regions. Tail region with fifteen equally spaced supplements
beginning near the cloacal opening. Spicules
slender, strongly arcuate; gubernaculum crescent-shaped and sigmoid with
most areas thickened; small bifurcate accessory organs also occur.
Arcuate tail with conoid anterior and spicate posterior portions, without
caudal glands or spinneret; caudal pores were not observed.
Habitat. About the roots of shore-line vegetation.
Oregon distribution. Pacific City, Rockaway Beach,
and Wecoma Beach.
DNA Sequences Obtained