Muma, 1962: 11-12, figs 63-67; Muma, 1963: 1; Muma, 1966c: 210.
Eremochelis plicatus (Muma): Muma, 1970a: 33; Muma, 1974a: 8; Muma,
1976: 19; Muma and Muma, 1988: 24; Brookhart and Brookhart, 2006: 318.
Nevada: Nye County - Mercury, 15 July
1960 (Elden Beck), 1 male (holotype); 6 July 1960 (Elden Beck), 1 female (allotype).
Deposited in the American Museum of Natural History.
Muma (1962) also refers to "male paratypes from the same locality by
the same collector on July 19, 1960, and July 21, 1960" and a "female
paratype from the same locality by the same collector on July 25, 1960", and reports them as
also deposited in the
American Museum of Natural History.
Muma, 1962: 21-24,
figs 26-29 (as Therobates plicatus):
Total length, 18.0 to 19.0 mm.
Chelicerae 4.4-4.6 mm 2.1-2.0 mm.
4th legs 26.0-26.0
Color in alcohol pale yellow, with dusky
purplish markings as follows: eye tubercle dark, propeltidium dusky
except for a narrow pale stripe and a dark anterior margin;
mesopeltidium, metapeltidium, and abdominal tergites dusky, with
posterior tergites nearly yellow; palpi and legs dusky except on tarsi,
coxae, trochanters, and basal ends of femora; malleoli white.
Dentition of chelicerae as in figures 63
and 64. Movable finger slender, strongly curved, with a large principal
tooth, anterior teeth and one intermediate tooth reduced to minute
denticules, and no mesial tooth. Fondal teeth distinct from dentate
socket margin, with both rows graded I, III, II, IV in size;
supernumerary denticules often occurring between fondal teeth. Fondal
notch twice as deep as wide and curved dorsally at its mesial end. Fixed
finger curved dorsally at base, straight in middle of length and folded
downward at tip; in dorsal view narrowed mesially in distal half.
Groove of fixed finger a deep, dorsally
hooded, mesially rounded concavity on distal half of finger. Flagellum
complex typical of group, with dorsal tubular bristles curved downward
at tips, plumose bristles curved upward, and basal tubular bristles
straight or gently curved upward. Mesial setae of movable finger plumose
except for five or six at distal end of articulation area.
Eye tubercle situated on anterior margin of
propeltidium. Eyes separated by less than one diameter. Propeltidium
wider than long by a ratio of 1 to 1.5.
Metatarsus and tibia of palpus provided
below with a narrow, line-like scopula of 10-20 papillae and long,
heavy, cylinder bristles (fig. 65). Above, these segments clothed
with short, fine, cylinder bristles. Metatarsus four times as long as
First post-spiracular abdominal sternite
Total length, 21.5-22.0 mm.
Chelicerae 5.0-5.7 mm
4th legs 24.5-27.5 -
Color and markings in alcohol same as in male.
Dentition of chelicerae apparently quite variable but in general as shown in
figure 66 of paratype. Movable finger with large principal tooth, smaller
anterior tooth, two intermediate teeth, basal of which is much larger, and
no mesial tooth. Fixed finger with principal, medial and anterior teeth
large, medial tooth larger than principal tooth, two intermediate teeth
between principal and medial and between medial and anterior teeth, and one
intermediate tooth behind principal tooth. Fondal teeth of mesial row
as in male, those of ectal row graded III,
II, IV, I in size.
Structure otherwise same as in male except no scopula on metatarsus
Opercula of genital segment as shown in figure 67.