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Atypidae Calommata

Calommata sundaica (Doleschall, 1859)

Sunda Calommata

The spider is extremely rare in Singapore, and has not been collected since 1967. Among its diagnostic characters are a pair of stout and projecting chelicerae with long fangs. The male cephalothorax is reinforced with extra chitin anteriorly, with tiny eyes mounted in a forward pointing conical tubercle. Each maxilla has a prong-shaped extension. The male palps are inflated. In the female, the first pair of legs is reduced to palp-like size and the maxillae are not furnished with prong-like extensions.

Length♀ 25 mm; ♂ 6 mm
DistributionSingapore, Indonesia (Java, Sumatra).
HabitatIn burrows among root crevices of roadside trees.
BiologyThe burrows are reported to be vertical and lined with elastic closely woven silk. The entrance is surrounded by a sill of 1-2 mm, and is usually concealed by fallen leaves and closed by cotton-wool like silk.

Taxonomy

Taxonomic references*

  1. Pelecodon sundaicus (Original description ♀)

    Doleschall, 1859 Tweede Bijdrage tot de kennis der Arachniden van den Indischen Archipel: 6, pl. 13, f. 2, pl. 17

  2. Calommata sumatrana (Original description ♀)

    Ausserer, 1871a Beiträge zur Kenntniss der Arachniden-Familie der Territelariae Thorell (Mygalidae Autor): 130, pl. 1, f. 1-3

  3. Calommata sundaica (Transferred from Pelecodon, Synonym of Calommata sumatrana)

    Thorell, 1890a Studi sui ragni Malesi e Papuani: 416

  4. Calommata sundaica (♀)

    Abraham, 1924 Some mygalomorph spiders from the Malay Peninsula: 1120, f. 1B-2 doi:10.1111/j.1096-3642.1924.tb03332.x

  5. Calommata sundaica (Original description ♂; probably misidentified)

    Kritscher, 1957 Bisher unbekannt gebliebene Araneen-Männchen und -Weibchen des Wiener Naturhistorischen Museums (1: 259, f. 8-9

  6. Calommata sundaica (♂; probably misidentified)

    Levy, 2007 Calommata (Atypidae) and new spider species (Araneae) from Israel: 3, f. 1-9 doi:10.11646/zootaxa.1551.1.1

* Retrieved from the World Spider Catalog.

Distribution Map for Calommata sundaica (Doleschall, 1859)

Singapore, Indonesia (Java, Sumatra).

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