1962] 
Brady - — Sosippus 
137 
part of the indention in the posterior edge to the tangent of the AME, 
thus allowing for the abdomen over-hanging the carapace. For meas- 
urements of the POQ the specimen was placed in a horizontal attitude 
such that a definite space was visible between the PME and the AME 
when viewed from above (as in Fig. 3 and not as in Fig. 4). This 
gives the greatest length to the POQ. The anterior eye row was 
measured by placing the specimen vertically in such a position that a 
face view was obtained. The measurement of the AME was again 
checked in this position. The measurement of leg segments was taken 
from the prolateral aspect of the anterior pairs of legs and the retro- 
lateral aspect of the posterior pairs of legs for all segments except the 
femora. The femora of the anterior pairs of legs were measured from 
the retrolateral aspect and those of the posterior pairs of legs from the 
prolateral aspect to avoid breaking legs from specimens. 
EXPLANATION OF FIGURES 
The color descriptions and illustrations of S. texanus , S. jloridanus, 
and S. calif ornicus were based on fresh specimens and represent these 
species much as they appear in life. The color description and illustra- 
tion of S. mimus (Fig. 3) is based on the holotype, which is in very 
good condition. Sosippus michoacanus , S. agalenoides , S. mexicanus , 
S. mimus (Fig. 2), and S. plutonus were drawn from specimens that 
have been in alcohol for some time, but have remained in a good state 
of preservation. The relative condition of these specimens is indicated 
by the order in which they are listed above. The description and 
illustration of the type of S. plutonus probably deviates more from that 
of the living spider than any of the rest since hair appears to have been 
rubbed from the carapace and the abdomen is shrivelled. 
Two drawings of the female genitalia were made for each species: 
a ventral external view of the epigynum after all the hair had been 
removed (thus revealing some internal structure through the integu- 
ment), and a dorsal internal view with the genitalia removed and sub- 
merged in clove oil for clearing. 
Two views of the male palpi were drawn for each species: a ventral 
view and a retrolateral view. The left palpi of the males were used 
after gently scraping them free of hair (quite abundant in the living 
spider) and spines (one or more at the ventral apex and several along 
the retrolateral edge of the cymbium). These hairs and spines obstruct 
the palpal sclerites and since the sclerites of the palpi are of much 
greater diagnostic value, no attempt was made to indicate hirsuteness 
or spination in the drawings of the male palpi. 
