Hypoptopomatinae

Hypoptopomatinae Eigenmann and Eigenmann, 1890

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Hypoptopoma sp., photo by K.S. Cummings

Nannoptopoma spectabilis, photo by J.W. Armbruster

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PHYLOGENY

Schaefer (1998) provides the most recent review of the Hypoptopomatinae, but much has been done with the subfamily since.

GENERA

Acestridium
Aristommata (synonym of Hypoptopoma)
Corumbataia
Diapeltoplites (synponym of Hypoptopoma)
Epactionotous
Eurycheilichthys
Hisonotus
Hypoptopoma
Lampiella (synonym of Otocinclus)
Macrotocinclus (synonym of Otocinclus)
Microlepidogaster
Nannoptopoma
Niobichthys
Otocinclus
Otothyropsis
Otothyris
Oxyropsis

COMPARISONS

Hypoptopomatines can be separated from all other loricariids based on the presence of an exposed pectoral girdle lateral to the coracoid strut. The entire pectoral girdle may be expsoed as in the Hypoptopoma below, or just a portion as in the Parotocinclus.

LITERATURE CITED

Schaefer, S. A. 1998. Conflict and resolution: impact of new taxa on phylogenetic studies of the Neotropical cascudinhos (Siluroidei: Loricariidae). Pp. 375-400 In Malabarba, L.R. R.E. Reis, R.P. Vari, Z.M.S. Lucena, and C.A.S. Lucena (editors), Phylogeny and Classification of Neotropical Fishes,

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