Muma and Brookhart 1988
Eremobates ajoanus Muma and
Brookhart, 1988: 19-21, figs 53-58; Brookhart and Brookhart, 2006: 308.
Male holotype at night lights, Child's Ranch, 4.5 mi. south of Ajo,
Arizona along Highway 85, June 3, 1975, and female allotype at night
lights, 1.2 miles north of Organ Pipe National Monument along Highway
85, June 3, 1975, J. O. Brookhart and M. H. Muma, both deposited in FSCA.
Brookhart and Muma 1988:
Species pale to dark yellow in color with dark purplish markings as
follows. Palpi yellow basally to dark yellow distally with distal
of metatarsi and all of tarsi dark
(fig. 53). Legs pale yellow basally to yellow distally with femoral-tibial
unions lightly dusky on legs IV, III and sometimes II (fig. 53).
Propeltidia dark along anterior margin, lightly dusky throughout with
wide marginal posterior pale area, pale transverse ovate area on each
side of eyes, large pale longitudinal ovate area behind eyes, and narrow
yellow longitudinal stripe extending from eye tubercle to posterior
margin (fig. 54). Mesopeltidia, metapeltidia. and abdominal terga dusky
to dark with pleura paler to pale. Sterna pale.
Males (6) somewhat variable in size; CP varies from
(mean 10.9). Legs long; A/CP varies from
(mean 6.9). Fondal notch slightly
longer than wide with length/width ratio varying from 1.1-1.5 (mean 1.4)
(fig. 55). No ctenidia. Mesal tooth on movable cheliceral finger varies
from medium sized to large with mode medium sized.
Females (6) also somewhat variable in size; CP varies from
10 .8- 13.0
(mean 11.88). Legs short;
varies from 5.6-5 .9 (mean 5.7).
Mesal tooth on movable cheliceral finger varies from small to medium
sized with mode medium sized (figs. 56-57). Opercula 1.5 times wider
than long; opercular notch occupies 29-38% of the opercula (mean 33)
Brookhart and Muma 1988: We have examined 8 males and 7 females of this species from the Organ
Pipe Cactus National Monument, Ajo, and Gila Bend area of Arizona. All
of our specimens were collected during June. The species probably ranges
from southcentral through southwestern Arizona. See Plate XIX.
In a diagnosis, Muma and Brookhart (1988)
commented that males
of this species may be distinguished by the tiny triangular dorsal-ectal spur on fixed cheliceral
finger, an irregular rounded or indistinctly lobed anterior process on
movable cheliceral finger, no ctenidia, palpi that are dark apically on
their metatarsi and all of their tarsi, and a cheliceral finger
whose dorsal process is peaked over the distal end of fondal notch.
Females, they noted, can be distinguished by the mesally undulate anterior lobes of
their opercula, the anteriorly concave and posteriorly convex lateral margins of
posterior opercular notch, and a vulvular opening that is located essentially at
the posterior end of the opercular area.
They suggested that his
species and bixleri are either
very closely related or synonyms, but stated that, until more specimens of the latter are
available for study, they would maintain them separately.