Pedipalpus


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pedipalpus

[¦ped·ə¦pal·pəs]
(invertebrate zoology)
One of the second pair of appendages of an arachnid.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Pedipalpus

 

one of the second pair of jointed appendages of the cephalothorax of Arachnoidea. In most species, the palpal organ serves to crush prey. Other species have chelate pedipalpi, for example, the scorpions and pseudoscorpions. The true spiders and other species have a simple palpus, whose extreme segment in the males serves as a copulative organ.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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Lawrence (1931, 1934, 1937) emended Roewer's diagnosis (Roewer 1915) with some characters of the pedipalpus and described an additional 17 species in the genus from South Africa; one (C.
Morphometric character Holotype Males(n = 5) Total length 9.20 8.00-9.20 Chelicerallength 2.50 1.80-2.50 Cheliceral width 0.90 0.70-0.90 Propeltidium length 1.72 1.30-1.72 Propeltidium width 2.03 1.60-2.03 Propeltidium length/width ratio 0.85 0.81-0.85 Pedipalpus length 6.88 6.50-6.88 Leg I 5.75 5.75-6.00 Leg IV 11.88 9.20-11.88 Morphometric character Female Females paratype (n = 5) Total length 12.00 10.00-12.00 Chelicerallength 2.80 2.50-2.80 Cheliceral width 1.00 0.84-1.00 Propeltidium length 1.63 1.56-1.63 Propeltidium width 2.25 2.19-2.25 Propeltidium length/width ratio 0.72 0.71-0.72 Pedipalpus length 6.40 5.84-6.40 Leg I 5.50 5.20-5.50 Leg IV 8.96 8.00-8.96 Table 2.--Characteristics of two Cerrado enclaves near Vilhena, Rondonia state, Brazil where M.