k Spinybacked spider Gasteracantha sp., SEM Scanning electron micrograph SEM of Spinybacked spider Gasteracantha sp.. Spiders of the Gasteracantha genus have hard, flat bodies. Three pairs of spines project from the edge of cephalothorax abdomen. Spinybacked spiders build vertical orbwebs that have open hubs. A male spinybacked spider has a small abdominal gonopore from which sperm is discharged. However, actual mating organs are located on leglike limbs called palps or pedipalps that are located between the jaw and first leg. In a mature male the last segment of the palp tarsus is a large, articulated spermholding reservoir and mating organ. Magnification x6 when shortest axis printed at 25 millimetres. Stock Photo - Afloimages
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Spiny backed spider Gasteracantha sp. , SEM Scanning electron micrograph SEM of Spiny backed spider Gasteracantha sp. . Spiders of the Gasteracantha genus have hard, flat bodies. Three pairs of spines project from the edge of cephalothorax abdomen . Spiny backed spiders build vertical orb webs that have open hubs. A male spiny backed spider has a small abdominal gonopore from which sperm is discharged. However, actual mating organs are located on leg like limbs called palps or pedipalps that are located between the jaw and first leg. In a mature male the last segment of the palp tarsus is a large, articulated sperm holding reservoir and mating organ. Magnification: x6 when shortest axis printed at 25 millimetres.
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Spiny-backed spider (Gasteracantha sp.), SEM

Scanning electron micrograph (SEM) of Spiny-backed spider (Gasteracantha sp.). Spiders of the Gasteracantha genus have hard, flat bodies. Three pairs of spines project from the edge of cephalothorax (abdomen). Spiny-backed spiders build vertical orb-webs that have open hubs. A male spiny-backed spider has a small abdominal gonopore from which sperm is discharged. However, actual mating organs are located on leg-like limbs called palps (or pedipalps) that are located between the jaw and first leg. In a mature male the last segment of the palp (tarsus) is a large, articulated sperm-holding reservoir and mating organ. Magnification: x6 when shortest axis printed at 25 millimetres.

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