Geosesarma dennerle is a species of small land-living crabs found on Java, Indonesia.

It is popular in the aquarium trade, where G. dennerle, in particular, is often simply called the vampire crab.

The species is named after the aquarium supply company Dennerle, which supported one of the describing authors' study in Java.

The coloration of G. dennerle can be very similar to G. bicolor. The describing paper mentions chelipeds, male abdominal and G1 structures as distinguishing features.

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