Description
Female: Body stout, ventrally curved, "C" shaped when
killed. Lip region about twice as wide as high, rounded, offset.
Amphidial openings and pouches typical of the genus.
Guide ring single, about three lip region widths from anterior end.
Odotostyle long, with base forked at junction with odontophore; base of
odontophore expanded, moderately sclerotized. Nerve ring and expanded
basal portion of esophagus typical for genus.
Vulva a transverse slit, one, two, or three ventral pores just posterior
to vulva. Distinct sclerotized "plates" posterior and anterior to
vagina. Anterior genital branch reduced, uterus narrow, sperm not
observed, sphincter at uterus terminus, oviduct reduced with ovary absent.
Posterior genital branch reflexed near oviduct-ovary junction, connecting
sac extends posterior to junction. Tail cylindrical, bluntly rounded,
hemispherical, smooth, with two latero-dorsal caudal pores.
Male: None observed.
Juveniles: Typical for the genus.
Type habitat, Type locality and Distribution
Sandy soil from about the roots of elm (Ulmus americana L.)
and sweet gum (Liquidambar styraciflue L.) growing on the east bank
of the Middle-Fork of the White River, about 50 meters north of the bridge
crossing the river approximately 8 km south of Highway 16, Washington County,
Arkansas.
Found also about the roots of cane (Arundinaria gigantea (Wat.)
Chapm.), silver maple (Acer saccharinum L.), cottonwood (Populus
deltoides Marsch.), and sycamore (Platanus occidentalis L.)
in the type locality. Found about the roots of cedar (Juniperus
virginiana L.), grape (Vitis sp.) and hackberry (Celtis
sp.) near the type locality of C. clavicaudatus on Dick's branch
in Johnson County Arkansas. Also found south of the bridge on Old
Missouri Road in Fayetteville, Washington County, Arkansas, about the roots
of osage orange (Maclura pomifera (Raf.) Schneid) and wild cherry
(Prunus serotina Ehrh.).
Diagnosis
Females of C. cylindricaudatus n. sp. differs from: C. pinguicaudatus
and C. clavicaudatus n. sp. by its cylindrical tail shape, and a
shorter odonostyle; and C. cralleyi n. sp. by its more anterior
vulva.
(Description- Robbins, 1985)
DNA Sequences Obtained
| Specimen: | Collected: |
| Ark 01 | Arkansas |
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