# Javan slow loris vs Sunda slow loris: the differences

> How do the Javan slow loris (Nycticebus javanicus) and Sunda slow loris (Nycticebus coucang) differ? Classification, features, range, diet, size, IUCN status and legal protection, from cited sources.

Source: https://panduanhewan.org/en/species/differences/javan-slow-loris-vs-sunda-slow-loris/ · Updated 1 October 2026 · English · Bahasa Indonesia: https://panduanhewan.org/id/spesies/perbedaan/kukang-jawa-dan-kukang-sunda/
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The Javan slow loris (Nycticebus javanicus) and the Sunda slow loris (Nycticebus coucang) are different species in the same genus, Nycticebus. Range in Indonesia — the Javan slow loris: Java, Indonesia; the Sunda slow loris: Sumatra, the Riau Islands and the Natuna Islands.

| Aspect | [Javan slow loris](https://panduanhewan.org/en/species/javan-slow-loris/) | [Sunda slow loris](https://panduanhewan.org/en/species/sunda-slow-loris/) |
|---|---|---|
| Scientific name | Nycticebus javanicus | Nycticebus coucang |
| Indonesian name | Kukang Jawa | Kukang sunda |
| Class | Mammalia | Mammalia |
| Order | Primates | Primates |
| Family | Lorisidae | Lorisidae |
| Range in Indonesia | Java, Indonesia | Sumatra, the Riau Islands and the Natuna Islands |
| Endemic to Indonesia | Yes | No |
| Key features | One of the venomous mammals | Large eyes, white stripe between them, slow movements |
| Diet | — | Tree gum, nectar and fruit; sometimes insects, snails and eggs |
| Diet type | omnivore (eats plants and animals) | omnivore (eats plants and animals) |
| Reproduction | giving birth to live young (viviparous) | giving birth to live young (viviparous) |
| IUCN status | Critically Endangered | Endangered |
| Legal protection | Protected (Regulation P.106/2018) | Protected (Regulation P.106/2018) |

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