Latin Name:
Geosesarma rouxi
Trade Names:
Geosesarma sp. golden top, rainbow
Discoverer:
Serène, 1968
Scientifically Described:
Yes
Appearance Status:
UNCERTAIN
Availability in Trade:
Currently unavailable. Likely present from 2006-2015.
Distribution:
Batu – Malang - East Java, Indonesia
Source: own elaboration based on Google Maps
Habitat:
Tropical forest floor. Near watercourses. Highland species.
Additional Information:
Prefers a terrestrial lifestyle, likes to dig burrows.
Appearance:
Can have various colors.
- Carapace – Divided into two colors: golden/yellow and light grayish-blue
- Legs – Burgundy-violet
- Claws – Orange
- Eyes – Yellow
- Underside – Black/dark brown
Source: inaturalist.org
Source: panzerwelten.de
Source: hespidershop.co.uk
Source: garnelio.de
Source: geosesarma.com Padilla, P. (2022)
Notes:
It is difficult to confirm 100% whether this species looks this way. After the description of the two species Geosesarma riani and Geosesarma nigripes, it is possible that the crabs in trade attributed to this appearance were actually new species from 2024. The documents describing the species do not provide information about the external appearance. Comparing biological structure and confirming the species based on photos is challenging. We know that Geosesarma rouxi occurs in the eastern part of Java Island, where imports are now rare. However, they were likely present between 2006-2015. Specimens from older listings and photos labeled as Geosesarma rouxi seem closest to Geosesarma nigripes, although some have more violet legs, which would match the image that could be most authentic for the appearance of Geosesarma rouxi. Crabs of Geosesarma riani and Geosesarma nigripes are still labeled as Geosesarma rouxi and kept together, even though they are three different species. The document describing Geosesarma riani and Geosesarma nigripes did not rule out Geosesarma rouxi and did not split it into two species as some claim. These are confirmed as three separate species.