Thornelya fuscina is found from the Indo-Pacific.
Original description: Lepralia fuscina Tilbrook, Hayward & Gordon, 2001
Locality: Vanuatu.
Holotype: BMNH 1998.8.4.183; Paratype: BMNH 1998.8.4.265.
Description from Tilbrook, Hayward & Gordon, 2001. (PDF file)
Description from Tilbrook, 2006. (PDF file)