Pseudouroctonus m. castaneus
Pseudouroctonus m. thompsoni
Pseudouroctonus minimus minimus (Kraepelin 1911)
Kraepelin, 1911: 83.
Vejovis minimus minimus: Gertsch & Soleglad, 1972: 598-600, fig.
136, 137, 144.
Pseudouroctonus minimus minimus: Stockwell, 1992; Sissom, 2000: 517.
minimus Kraepelin 1911 - Female
lectotype (designated by Gertsch & Soleglad, 1972: 600) from San Pedro, Los
Angeles County, California, in the Zoologisches Museum, Universitat Hamburg,
Gertsch & Soleglad,
"DIAGNOSIS: Average size about
19 mm., with largest female 21.6 mm. long; coloration quite uniform
brown; fixed finger of chela about equal to palm width, movable finger
somewhat less than palm length; apical teeth on fingers of chela not
noticeably enlarged; movable finger with six supernumerary teeth.
COLORATION: Quite uniform medium to dark reddish brown, with keels
darker; eye tubercles and tip of sting blackish.
STRUCTURE: Similar in both sexes unless otherwise noted. Measurements as
given in table 10.
Carapace: Anterior margin with shallowly rounded emargination in front,
with six principal setae, three on each lobe. Carapace coriaceous,
covered over most of surface with rounded granules, these less numerous
in eye triangle. Median eyes small, about 0.02 mm., separated by almost
their diameter; median eye tubercle about one-sixth or one-seventh of
carapace width at that point. Lateral eyes three; posterior eye smaller
than front pair, in some cases obsolete.
Preabdomen: All tergites granulated, lightly as in front half but with
heavier, rounded granules on posterior edges. Tergite VII granulose,
with dorsal and submedian keels well developed, set with row of rounded
granules. Sternites quite smooth; sternite V with scattered granules on
Cauda: In both sexes (fig. 144) short, thick, not much narrowed behind.
First three segments much broader than long; fourth segment few
bristles; those on venter in rows of three on most segments.
Telson: Vesicle much narrower than fifth caudal segment, elongate-oval,
smooth and flat above, rounded and granulated below, with rows of
inconspicuous bristles. Sting moderately curved, about three-fifths as
long as vesicle in both sexes. See figure 137.
Pectines: Median piece twice as broad as long, with short, triangular
emargination in front, its breadth somewhat more than half of greatest
length of pectin. Middle lamellae of females five or six, of males seven
or eight. Pectinal teeth offemales nine or 10, of males 10 or 11.
Chelicerae: Dentition typical of genus. Keel on lower margin ofmovable
Pedipalps: Similar in both sexes, with heavy hands resembling those of
species of Uroctonus. Femur and tibia of medium size, with keels
prominent and provided with rounded granules. Chela robust for size of
scorpion, with all keels prominent; superior and outer accessory keels
smooth, with a few pits; inner accessory, lateral and all ventral keels
granulated, giving inside view crenulate or irregularly serrate lines.
Inner keel of fixed and movable fingers with six files of granules
flanked by six supernumerary teeth; apical file on movable finger short.
Tips on fingers not much curved inward and apical teeth ofmedium
development (fig. 136).
Walking legs: Typical for genus, with basal segments finely granulated.
Tarsi with ventral line of spinules flanked by fine inconspicuous
AMERICA. USA (California: Los Angeles County): Mainland and southern Channel
Paralectotypes: male and female
from San Pedro, Los Angeles County, California, in the Zoologisches Museum,
Universitat Hamburg, Hamburg, Germany. California: Los Angeles County:
Avalon, Santa Catalina Island, July 24, 1961 (V. and B. Roth), male; San
Clemente Island: April 10, 1923 (P. Needham), two males, three females,
November 17, 1962 (D. Sanchez), male from Indian midden, August 11, 1968 (D.
G. Marqua), female from Nots Pier area, February, 1969 (T. Cooke), eight