Othoes hirsti Lawrence 1954
Othoes hirsti Lawrence 1954.
Paintings by Vladimir Timokhanov
Othoes hirsti Lawrence 1954a: 118-120, figs 5a-b; Panouse, 1964: 57-65, figs la, 4-5, 6a-b, 7a-d, 8-9, l0a-b, 11a-b.
2♂♂, Jedda, Saudi Arabia, collected by H. C. Trott (B
Original description (Lawrence 1954a:
118-120, figs 5a-b):
The whole animal light yellow except the tibia, metatarsus and
tarsus of the palp which are chocolate brown (tibia), and
blackish-brown (metatarsus and tarsus), contrasting sharply with the
remainder; head and chelicerae without darker markings or
infuscation but dorsum of abdomen in the middle a little darker than
as in fig. 5 A seen from the outer side; outer series of cheek teeth
with three, inner series with two.
as in fig.
5 A seen from outer side, fig. 5 B seen from inner side;
two long slender setae rising from outer side near the dorsal margin
and posterior to the insertion of the flagellum; these two setae
differing from other similar ones on the outer surface of the dorsal
jaw in being longer and directed upwards; a very stout conical spine
on the inner side of dorsal jaw, posterior to the origin of
shape and structure of the flagellum not differing in general from
the typical form found throughout the Galeodidae.
Metatarsus of pedipalp without cylinder bristles, ventrally with six
to seven short, stout, conical and tooth-like spines on each side,
not very regularly paired; tarsus unspined; tibia below with about
five pairs of very long lateral spines projecting forwards at about
45° to the long axis of the segment and with numerous other shorter
vertical spines; femur below in its distal half with some very long
perpendicular spines, the proximal half with much shorter spines.
Sternite VI with eight to ten very long, slender and pointed
ctenidia, reaching almost to the posterior margin of sternite VIII;
malleoli very long, the stalks slender, the terminal membranous
portion very wide, the longest malleolus 7·5 mm in length.
Total length (including chelicerae) 46, ohelicerae in situ
The genus was based by Hirst (1911) on female specimens only
and male forms have not hitherto been recorded. The males here
described agree fully with Hirst's account of Othoes in the
generic distInctiveness of the claws, the second joint being greatly
elongated and clothed with unusually long hairs. The ventral
spination of the tarsi of legs III and IV also agrees with the
formula given by Hirst, that of leg III being 188.8.131.52/2.
The species differs from both of those described by Hirst in
its much larger size. Many of the structures, such as spines,
ctenidia and malleoli,
be greatly elongated. The type locality of one of Hirst's species
was Upper Egypt (Wadi Halfa),
of the other being unknown.
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