Typhlichthys undescribed species lineage M
[Niemiller et. al. 2013]
ORDER | SUB-ORDER | FAMILY |
---|---|---|
Percopsiformes | Percopsiformes | Amblyopsidae |
Synonyms
Typhlichthys subterraneus Girard 1859 (in part)
Country
USATypes
This taxon has not been described and there are no types. The taxon was identified as separate from Typhlichthys subterraneus sensu lato by Niemiller et al. (2013).
Distribution
Recorded from 6 caves in Kentucky (3 confirmed by molecular data) (Niemiller et al. 2013).
Systematics
The population of lineage M in Sloans Valley Cave, Pulaski County, Kentucky was recognised as different from nominal Typhlichthys subterraneus by Cooper and Beiter (1972), Swofford, Branson, and Sievert (1980) and Burr and Warren (1986:221).
There are nine known and named taxa in the Family Amblyopsidae. Of these six are subterranean fishes with the usual troglomorphic characters of reduced eyes and pigment and permanent subterranean existence, and three are epigean fishes with normal eyes and pigment. Recent molecular and morphological evidence produced by Hart et al. (2020) demonstrates that the relationship between these hypogean and epigean fishes is not simple. There are four major clades within the Family:
1. Typhlichthys subterraneus and Typhlichthys eigenmanni are sister species and sister to this pair is Speoplatyrhinus poulsoni. However, T. subterraneus is quite clearly divided into two subgroups, one of which is closer to T. eigenmanni than it is to the other group of T. subterraneus. The only way to read the cladogram for this group is that it consists of three taxa, one of which is currently un-named. This clade are all subterranean fishes.
2. Two of the epigean fishes, Forbesichthys papilliferus and Forbesichthys agassizii, are sister to each other and their sister is the hypogean species Amblyopsis spelaea.
The two remaining clades contain one species each but their relationships to the other six species is ambiguous:
3a. Sister to the above groups is epigean Chologaster cornuta with hypogean Troglichthys rosae sister to all other taxa.
3b. Sister to the above groups is hypogean Troglichthys rosae with epigean Chologaster cornuta sister to all other taxa.
Given the fact that the distribution of Chologaster cornuta is very far from the distributions of the other taxa 3b seems the most parsimonious explanation. Amblyopsis hoosieri is not included in the paper of Hart et al. (in press) but one would expect it to be in group 2 above based on geography.
This analysis does not take into account the ten possible cryptic taxa, currently subsumed within Typhlichthys subterraneus, identified by Graening, Fenolio and Slay (2011), Niemiller et al. (2013) and Hart, Burress and Armbruster (2016).
Conservation Status
MuG [NE] CR B1ab(iii):3.1:2013 (Niemiller et al. 2013)
Museum Holdings
AUM, YPM (Niemiller et al. 2013)
Key References
- Romero, A. and Conner, M. (2007)
- Niemiller, M. L., Near, T. J. and Fitzpatrick, B. M. (2011)
- Niemiller, M.L. (2011)
- Niemiller, M.L., Graening, G.O., Fenolio, D.B., Godwin, J.C., Cooley, J.R., Pearson, W.D., Fitzpatrick, B.M. and Near, T.J. (2013)
- Niemiller, M.L., Taylor, S.J., Slay, M.E. and Hobbs, H.H. III (2019)
- Mouser, J. (2019)
- Adams, G.L., Burr, B.M. and Warren, M.L. (2020)
- Hart, P.B., Niemiller, M.L., Burress, E.D., Armbruster, J.W., Ludt, W.B. and Chakrabarty, P. (2020)
- Mouser, J.B., Brewer, S.K., Niemiller, M.L., Mollenhauer, R. and Van Den Bussche, R.A. (2021)
- Mouser, J.B., Brewer, S.K., Niemiller, M.L., Mollenhauer, R. and Van Den Bussche, R.A. (2022)
- Mouser, J. (2022)
Romero, A. and Conner, M. | Journal Article | 2007 | Status report for the southern cavefish, Typhlichthys subterraneus in Arkansas |
Niemiller, M. L., Near, T. J. and Fitzpatrick, B. M. | Journal Article | 2011 | Delimiting species using multilocus data: Diagnosing cryptic diversity in the Southern Cavefish, Typhlichthys Subterraneus (Teleostei: Amblyopsidae) |
Niemiller, M.L. | Thesis | 2011 | Evolution, speciation, and conservation of amblyopsid cavefishes |
Niemiller, M.L., Graening, G.O., Fenolio, D.B., Godwin, J.C., Cooley, J.R., Pearson, W.D., Fitzpatrick, B.M. and Near, T.J. | Journal Article | 2013 | Doomed before they are described? The need for conservation assessments of cryptic species complexes using an amblyopsid cavefish (Amblyopsidae: Typhlichthys) as a case study |
Niemiller, M.L., Taylor, S.J., Slay, M.E. and Hobbs, H.H. III | Book Section | 2019 | Biodiversity in the United States and Canada |
Mouser, J. | Thesis | 2019 | Examining occurrence, life history, and ecology of cavefishes and cave crayfishes using both traditional and novel approaches |
Adams, G.L., Burr, B.M. and Warren, M.L. | Book Section | 2020 | Amblyopsidae: Cavefishes |
Hart, P.B., Niemiller, M.L., Burress, E.D., Armbruster, J.W., Ludt, W.B. and Chakrabarty, P. | Journal Article | 2020 | Cave-adapted evolution in the North American Amblyopsid fishes Inferred using phylogenomics and geometric morphometrics |
Mouser, J.B., Brewer, S.K., Niemiller, M.L., Mollenhauer, R. and Van Den Bussche, R.A. | Journal Article | 2021 | Refining sampling protocols for cavefishes and cave crayfishes to account for environmental variation |
Mouser, J.B., Brewer, S.K., Niemiller, M.L., Mollenhauer, R. and Van Den Bussche, R.A. | Journal Article | 2022 | Lithology and disturbance drive cavefish and cave crayfish occurrence in the Ozark Highlands ecoregion |
Mouser, J. | Journal Article | 2022 | Lithology and disturbance drive cavefish and cave crayfish occurrence in the Ozark Highlands ecoregion |