Roberts and Stewart 1976
CountryLower Congo River: freshwater
Holotype: MCZ 50248. Paratype: MCZ 50249.
Type locality: Lower Congo River rapids near Bulu (5o1'S, 14o1'E). During a study of the Congo River Lamprologus species Schelly and Stiassny (2004) only had the holotype and paratype to study but later collection trips ???
Schedel et al. (2018, 2019) recognize several novel mitochondrial lineages and one of them is proposed as a monophyletic clade for the Lamprologus of the Lower and Central Congo drainage, including Lamprologus lethops. The type species of the genus (Lamprologus congoensis Schilthuis 1891) is not part of this clade and it is likely that any future revision of the tribe Lamprologini will provide a replacement generic name for this group (L. mocquardi, L. markerti, L. tigripictilis, L. lethops, L. teugelsi and L. sp. Kwango). A member of the subfamily Pseudocrenilabrinae.
Oliver Lucanus (Lucanus 2013 and pers. comm.) managed to keep numerous specimens of this species alive in captivity after carefully treating their decompression symptoms. They also bred and laid eggs but these did not hatch.
The lower Congo River, and especially the northern and southern rapids below Pool Malebo, are home to many endemic species (Roberts and Stewart 1976, Bailey 1986, Thieme et al. 2005, Mamonekene 2005, Alter et al. 2015, Alter et al. 2017, Stiassny 2016). In particular there are at least eleven species, in five Families, which exhibit the troglomorphic features of reduced eyes and pigment:
These features probably evolved because these species live at depth within the rapids and spend their whole lives in permanent darkness, analagous to life in caves. The ocular and craniofacial anatomy of several of these species have been studied (Schobert et al. 2010, 2011, 2013) but almost nothing else is known about these animals.
Moelants, T. 2010. Lamprologus lethops . The IUCN Red List of Threatened Species 2010: e.T182930A8005445. https://dx.doi.org/10.2305/IUCN.UK.2010-3.RLTS.T182930A8005445.en. Downloaded on 17 March 2020.
As above plus: AMNH 248124 56.2mm SL, AMNH 247885 125.4mm SL, AMNH 251325 32.2mm SL, AMNH 247962 (all Stiassny and Alter 2021).
- Roberts, T.R. and Stewart, D.J. (1976)
- Decu, V., Juberthie, C. and Tercafs, R. (2001)
- Schelly, R.C. and Stiassny, M.L.J. (2004)
- Jackson, P.R., Oberg, K.A., Gardiner, N. and Shelton, J. (2009)
- Schobert, C.S., Schwab, I.R., Stiassny, M.L., Schelly, R.C., Lowenstein, J.H., Zeiss, C. and Dubielzig, R.R. (2010)
- Schobert, C.S., Stiassny, M.L.J. and Dubielzig, R.R. (2011)
- Schobert, C.S., Stiassny, M.L.J., Jeffery, W.D. and Dubielzig, R.R. (2011)
- Schobert, C.S., Stiassny, M.L.J., Schwab, I.R., Zeiss, C., Schelly, R.C. and Dubielzig, R.R. (2013)
- Lucanus, O. (2013)
- Brawand, D. et al. (2014)
- Tougas, S. and Stiassny, M.L.J. (2014)
- Stiassny, M.L.J. and Alter, S.E. (2015)
- Alter, S.E., Brown, B. and Stiassny, M.L.J. (2015)
- Alter, S.E., Munshi-South, J. and Stiassny, M.L.J. (2017)
- Schedel, F.D.B., Musilová, Z. and Schliewen, U.K. (2018)
- Stiassny, M.L.J., Monsembula Iyaba, R.J.C., Liyandja, T., Mbimbi Mayi Munene, J.J., Yoko, M., and Alter, E. (2018)
- Schedel, F.D.B., Musilova, Z. and Schliewen, U.K. (2019)
- Stiassny, M.L.J. (2019)
- Elbein, A. (2020)
- Aardema, M.L., Stiassny, M.L.J. and Alter, S.E. (2020)
- Stiassny, M.L. and Alter, S.E. (2021)
|Roberts, T.R. and Stewart, D.J.||Journal Article||1976||An ecological and systematic survey of fishes in the rapids of the lower Zaire or Congo river|
|Decu, V., Juberthie, C. and Tercafs, R.||Book Section||2001||Republique Democratique Du Congo (ex-Zaire)|
|Schelly, R.C. and Stiassny, M.L.J.||Journal Article||2004||Revision of the Congo River Lamprologus Schilthuis, 1891 (Teleostei: Cichlidae), with descriptions of two new species|
|Jackson, P.R., Oberg, K.A., Gardiner, N. and Shelton, J.||Conference Paper||2009||Velocity mapping in the Lower Congo River: A first look at the unique bathymetry and hydrodynamics of Bulu Reach, West Central Africa|
|Schobert, C.S., Schwab, I.R., Stiassny, M.L., Schelly, R.C., Lowenstein, J.H., Zeiss, C. and Dubielzig, R.R.||Conference Paper||2010||Abstract 4. Comparative ocular anatomy of four species of lower Congo River fish|
|Schobert, C.S., Stiassny, M.L.J. and Dubielzig, R.R.||Conference Paper||2011||Abstract 12. Comparative ocular and craniofacial anatomy in nine species of lower Congo River fish|
|Schobert, C.S., Stiassny, M.L.J., Jeffery, W.D. and Dubielzig, R.R.||Journal Article||2011||Comparative ocular anatomy In troglomorphic fish: Sensory compensation for reduced vision|
|Schobert, C.S., Stiassny, M.L.J., Schwab, I.R., Zeiss, C., Schelly, R.C. and Dubielzig, R.R.||Journal Article||2013||Comparative occular anatomy in a blind African cichlid fish, Lamprologus lethops|
|Lucanus, O.||Journal Article||2013||First notes on the husbandry of the blind cichlid Lamprologus lethops from the Congo River|
|Brawand, D. et al.||Journal Article||2014||The genomic substrate for adaptive radiation in African cichlid fish|
|Tougas, S. and Stiassny, M.L.J.||Journal Article||2014||Lamprologus markerti, a new lamprologine cichlid (Teleostei: Cichlidae) endemic to the lower Congo River in the Democratic Republic of Congo, west-central Africa|
|Stiassny, M.L.J. and Alter, S.E.||Journal Article||2015||Phylogenetics of Teleogramma, a riverine clade of African cichlid fishes, with a description of the deep-water molluskivore —Teleogramma obama — from the lower reaches of the middle Congo River.|
|Alter, S.E., Brown, B. and Stiassny, M.L.J.||Journal Article||2015||Molecular phylogenetics reveals convergent evolution in lower Congo River spiny eels|
|Alter, S.E., Munshi-South, J. and Stiassny, M.L.J.||Journal Article||2017||Genomewide SNP data reveal cryptic phylogeographic structure and microallopatric divergence in a rapids adapted clade of cichlids from the Congo River|
|Schedel, F.D.B., Musilová, Z. and Schliewen, U.K.||Conference Paper||2018||New divergence ages provide novel insights into the biogeographic rigin of the East African Cichlid Radiation (EAR)|
|Stiassny, M.L.J., Monsembula Iyaba, R.J.C., Liyandja, T., Mbimbi Mayi Munene, J.J., Yoko, M., and Alter, E.||Conference Paper||2018||The evolution of extreme phenotypic convergence across fish lineages in the hyper-diverse Lower Congo River|
|Schedel, F.D.B., Musilova, Z. and Schliewen, U.K.||Journal Article||2019||East African cichlid lineages (Teleostei: Cichlidae) might be older than their ancient host lakes: new divergence estimates for the east African cichlid radiation|
|Stiassny, M.L.J.||Journal Article||2019||Fishes in the lower Congo River An extreme case of species divergence and convergent evolution|
|Elbein, A.||Web Page||2020||Earth’s deepest river conceals an evolutionary mystery|
|Aardema, M.L., Stiassny, M.L.J. and Alter, S.E.||Journal Article||2020||Genomic analysis of the only blind Cichlid reveals extensive inactivation in eye and pigment formation genes|
|Stiassny, M.L. and Alter, S.E.||Book Section||2021||Life in the fast lane: diversity, ecology, and speciation of cichlids in the lower Congo River|