Diancistrus typhlops

Nielsen, Schwarzhans and Hadiaty 2009







Holotype: MZB 17174. Paratypes: MNHN 2009-0154 (1); MZB 17175 (1); ZMUC P771680 (1), 771681 (1); ZRC 51874 (1).


Known only from the type locality: Alam Moko cave, Oempo village, Tongkuna district, Walengkabola, Muna Island, southeastern Sulawesi Province, Indonesia. 5°10'27.5"S, 122°35'00.6"E.



Molecular and morphological studies by Moller et al. (2016) show that Diancistrus typhlops forms a monophyletic group with D. jeffjohnsoni (type locality: Sweers Island, Gulf of Carpentaria, Australia, 17°08'S, 139°36'E) and D. tongaensis (type locality: Epi Island, Vanuatu, 16°47'S, 168°21'E). These three in turn form a monophyletic group with the sister species Dinematichthys iluocoeteoides (type locality: Batu Islands, Indonesia). The four species in this group have a sister relationship with a group consisting of Ogilbia cayorum, Ogilbia sp., Ogilbichthys sp. and the subterranean species Typhlias pearsei. The same studies show that these species are in the newly proposed Family Dinemtichthyidae (they were previously in Bythitidae) which is diagnosed by unique morphological synapomorphies in the male copulatory apparatus.

Conservation Status


Museum Holdings

As above only.

Key References

Suarez, S.S. Journal Article 1975 The reproductive biology of Ogilbia cayorum, a viviparous brotulid fish
Nielsen, JG, Schwarzhans, W and Hadiaty, RK Journal Article 2009 A blind, new species of Diancistrus (Teleostei, Bythitidae) from three caves on Muna Island, southeast of Sulawesi, Indonesia
Moller, P.R., Knudsen, S.W., Schwarzhans, W. and Nielsen, J.G. Journal Article 2016 A new classification of viviparous brotulas (Bythitidae) – with family status for Dinematichthyidae – based on molecular, morphological and fossil data