Galapagos Species Checklist


Arachnids

Banana Spider (Heteropoda venatoria Linnaeus); introduced species, Santa Cruz.

Banana Spider (Heteropoda venatoria Linnaeus); introduced species, Santa Cruz.

Arachnids are invertebrates with eight legs, the front pair of legs in some species is sometimes converted to sensory organs.

Almost all arachnids are terrestrial. However, some inhabit freshwater environments and, with the exception of the pelagic zone, marine environments as well.

Spiders are today the best studied group of the Galapagos Arachnida. At the moment, 149 spider species are known, with 121 likely described as new. The remaining 28 species have yet to be identified to the species level and are probably new to science.
Of the 124 identified species, 64 (almost 50%) are known only from the archipelago and hence may be endemic. 35 species have a New World distribution, 16 are cosmopolitan species, 6 pantropical, and 3 are cosmotropical species.


Author: Léon L. Baert.

Other Contributors: Sandra Abedrabbo, Fabián Bersosa, Ruth Boada, Charlotte Causton, Konjev Desender, Germania Estévez, H. Franz, Lilian Guzmán, Frederik Hendrickx, John M. Heraty, J. Hernández Pacheco, Henri W. Herrera, Bernard Landry, María T. Lasso, Maria Piedad Lincango, Yale Lubin, Jean-Pierre Maelfait, Alejandro Mieles, Renato Oquendo, Stewart B. Peck, W. Reeder, Helmut W. Rogg, Lázaro Roque-Álbelo, H. Schatz, I. Schatz, Bradley J. Sinclair, Michael R. Wilson.

Last updated: May 12, 2017

Names of taxa included: 468 total (376 accepted, 63 unidentified taxon, 26 doubtful, 3 new to science).

Origin of the taxa included: 6 accidental, 26 questionable accidental, 137 endemic, 1 indigenous, 4 questionable endemic.

Adding up the number of species in each category will not always equal the total number indicated. Some species have insufficient data to be categorized while others (e.g., category eradicated) will not be included in the total.

Arachnida Species Checklist

Expand all

Domain Eukaryota

Kingdom Animalia

Division Arthropoda

Class Arachnida

Order Acarina

Order Actinedida

Order Amblypygi

Order Araneae

Order Astigmata

Order Ixodida

Order Mesostigmata

Order Oribatida

Order Parasitiformes

Order Pseudoscorpiones

Order Sarcoptiformes

Order Schizomida

Order Scorpiones

Order Solifugae

Class Diplopoda

Order Polydesmida

Download now
the entire Arachnida checklist.

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pdf
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Older publications

Jan. 24, 2014 csv 118.2 kb pdf 106.6 kb
March 1, 2013 csv 117.9 kb pdf 105.7 kb
Jan. 23, 2013 csv 118.3 kb pdf 106.5 kb
April 13, 2011 csv 233.7 kb pdf 68.4 kb

You are welcome to download and use this information acknowledging the origin of the data.
This list should be cited as follows:

Baert, L. L. (2017). CDF Checklist of Galapagos Arachnids - FCD Lista de especies de Aracnidos de Galápagos. In: Bungartz, F., Herrera, H., Jaramillo, P., Tirado, N., Jiménez-Uzcátegui, G., Ruiz, D., Guézou, A. & Ziemmeck, F. (eds.). Charles Darwin Foundation Galapagos Species Checklist - Lista de Especies de Galápagos de la Fundación Charles Darwin. Charles Darwin Foundation / Fundación Charles Darwin, Puerto Ayora, Galapagos: http://darwinfoundation.org/datazone/checklists/terrestrial-invertebrates/arachnida/ Last updated 12 May 2017.