Enchodelus hopedorus
Thorne, 1939
Syn. Dorylaimellus hopedorus Thorne, 1929
Photo Gallery- Long's Peak, Colorado

Measurements (from Choi, Geraert & Baek, 1997)
L = 1703 um; a = 32.8; b = 5.3; c = 62.1; V = 47.5

(Description from Choi, Geraert & Baek, 1997)
Female:  Body tapering slightly towards both extremities.  Lip region set off by slight constriction. Odontostyle 2.2-2.5 lip region width long.  Amphids funnel-shaped. Guide ring 21-23 um from anterior end.  Basal expanded portion of oesophagus 41-46% of neck region.  Cardia rounded, tongue-shaped.  Prerectum 4-5.5 and rectum about one anal body-width long.  Vulva a transverse slit.  Oviduct and uterus separated by well developed sphincter.  Ovaries reflexed.  Tail 0.8-0.9 anal body widths long with 2 caudal pores on each side.  Tail blunt, dorsally convex-conoid, usually containing 19-15 pairs of saccate bodies.
Discussion.  The measurements and other characters are similar to E. hopedorus but in  the Korean specimens the odontophore does not show basal flanges.
Localities and habitat.  Chiri Mt., Kurye-gun (Pinus densiflora S. et Z.)

(Description from Thorne, 1929)
    This species differs from Dorylaimellus virginianus the type, and only species described, in that the basal third of the spear is made up of six sections.  The short hemispherical tail is very different from the conoid tail of the type species.
    The body is marked by excessively fine striae.  There are no wings.  The convex-conoid neck ends in a slightly set off lip region bearing two circlets of low innervated papillae.  The broad amphids are stirrup-form with deep inner extensions leading to sensilla pouches.  The spear is of three parts, the anterior a cylindrical, straight, heavily cutinized section twice as long as the width of the lip region, a second cylindrical less cutinized part five-eights as long as the first and a basal portion as long as the second part but only slightly cutinized.  When viewed in cross section this basal portion is found to be made up of six sections.  The esophagus is slightly narrowed at first then expands in an elongate bulb followed by a tube about one-third the neck width that suddenly expands near the middle to form the basal portion which is three-fifths as wide as the neck.  The conoid cardia is one-fifth the body width and submerged in the intestine.  The intestine is about four cells in circumference and  often is green in color, doubtless due to the vegetable matter on which the nema feeds.  From the depressed vulva the cutinized vagina leads half way across the body.  The two symmetrical ovaries are reflexed half their length the front being on the right, the rear on the left, side of the body.  The eggs are one and one-half times as long as the body width and one third as wide as long.  As man as four may occur at one time.  From the slightly depressed anus the rectum leads forward, being about one anal body diameter in length.  The prerectum is about three times as long as the rectum.  Pores lie somewhat past the middle of the tail.
    It was very numerous in the collections.  This may be related to Dorylaimus macrodorus deMan.
    This species is placed in Dorylaimellus only tentatively.  A study is being made of this and several other related species and it may be necessary to establish a new genus to receive them.

DNA Sequences Obtained
Specimen: Collected:
RMNP-LP2-03 Long's peak, Rocky Mountain Nat'l Park
Crater07 Bin-74 Haughton Crater
RMNP-LP2-35 Long's peak, Rocky Mountain Nat'l Park
Crater03 Bin-03 Haughton Crater Survey