Muma, 1951: 95 (figs 178-181), 96, 98;
Muma, 1962: 26 (figs 38-40), 28-29,
Muma, 1970a: 36-37
Muma, 1976: 20; Muma, 1985: fig. 9; Muma and Muma, 1988: 25; Wheeler, 1997:
89; Wheeler and Hyashi, 1998: 179; Giribet, Edgecombe, Wheeler and Babbitt,
2002: 14; Brookhart and Brookhart, 2006: 315.
California: San Bernardino County - Twentynine Palms,
July 1 to 15, 1945 (Jefferson H. Branch), adult male. Paratype (male)
- same data. Deposited in the American Museum of Natural History.
1951: 95 (figs 178-181), 96,
length, 25.5 to 26.0 mm.
Chelicerae 6.6- 6.6 mm. 2.2-2.3 mm.
Propeltidium 3.2- 3.4 4.4-4.4
1st legs 15.0-15.0
4th legs 34.0-35.0
Paratype, larger measurements.
Coloration in alcohol white to light yellow, with dusky markings as
follows: eye tubercle dark, apical end of femur of palpus with dark
margin, apical end of femur of fourth leg dusky. Malleoli white.
Dentition of chelicerae as shown in figures
178 to 180. Movable finger strongly curved, with moderate-sized
principal and anterior teeth and two distinct intermediate teeth.
Fixed finger strongly bent dorsally at base, curved mesally at tip, and
bearing several aborted teeth. Holotype with a tiny supernumerary
fondal tooth between I and II on mesal row. Fourth fondal teeth
barely distinguishable from dentate socket margin of movable finger.
Fondal notch obscure.
without mesal groove. Flagellum complex composed almost entirely
of plumose setae which increase in size and flatness towards the end of
the finger. Mesal setae of movable finger both plumose and
Eye tubercle situated on anterior margin of
propeltidium. Eyes about one diameter apart. Propeltidium wider than
long by a ratio of 1 to 1.3.
Metatarsus and tarsus of palpus entirely
covered with numerous weak cylinder bristles. Metatarsus provided with
a scopula of 70 to 150 papillae which extends from the base of the
segment for about three-fourths of its length on the mesoventral
surface. Metatarsus four times the length of the tarsus.
First post-spiracular abdominal sternite
not provided with ctenidia on its posterior margin.
Muma (1962) designated a female
from Palm Springs, Riverside County,
the allotype, and presented the following description:
Muma, 1962: 26
(figs 38-40), 28-29:
Total length, 27.0 mm.
Chelicerae 7.4 mm. 2.5 mm.
Propeltidium 3.2 4.7
First legs 16.5
Fourth legs 31.5
Color in alcohol almost identical with that of male, only
divergence on palpus where apical ends of femora and tibia and all of
metatarsi and tarsi are dusky.
Dentition of chelicerae as shown in figures 38 and 39. Movable
finger with principal tooth moderately large, anterior tooth slightly
smaller than principal tooth, two intermediate teeth alternating with
indistinct denticules, an irregular serration in front of anterior
tooth, and no distinct mesial tooth. Fixed finger with principal and
medial teeth subequal, anterior tooth slightly smaller than principal
tooth, three intermediate teeth between principal and medial teeth,
three between medial and anterior teeth, and an uneven serration in
front of anterior tooth. Fondal teeth same as in male except tooth 1 in
the ectal row missing.
Structure similar to that of male. Metatarsus of palpus without
scopula but with some of cylinder bristles three to four times length of
majority. First post-spiracular abdominal segment lacking distinct
or trace ctenidia.
Opercula of genital segment as shown in figure 40.
California: Riverside County - Palm Springs, July 19, 1950 (Paul D. Hurd),
1 female. Deposited in the American Museum of Natural History.