Glaphyropoma

Glaphyropoma is a genus of small pencil catfishes native to Bahia in Brazil.

Glaphyropoma
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Trichomycteridae
Subfamily: Copionodontinae
Genus: Glaphyropoma
de Pinna, 1992
Type species
Glaphyropoma rodriguesi
de Pinna, 1992

Species

There are currently two recognized species in this genus:[1]

The single synapomorphy proposed for Glaphyropoma is the marked narrowing of the first hypobranchial, giving the hypobranchial a slender shape.[2]

G. rodriguesi grows to about 5.1 centimetres (2.0 in) in standard length and originates from the Mucujê River, a tributary of Paraguaçu River in Brazil.[3]

G. spinosum is known to grow as large as 5.8 cm (2.3 in) in standard length. It is known from subterranean waters in the Diamantina Plateau of the Bahia State in central northeastern Brazil.[2] This is the first-known troglomorphic species in the subfamily Copionodontinae. These fish live in quartzitic caves formed by erosion by rain. The water depth in the creek where the catfish live varies mostly between 10 and 50 cm (4 and 20 in), with moderate current and some spotty accumulation of plant debris where fish are found foraging.[2]

References
  1. Froese, Rainer and Pauly, Daniel, eds. (2012). Species of Glaphyropoma in FishBase. February 2012 version.
  2. Bichuette, Maria Elina; de Pinna, Mario César Cardoso; Trajano, Eleonora (2008). "A new species of Glaphyropoma: the first subterranean copionodontine catfish and the first occurrence of opercular odontodes in the subfamily (Siluriformes: Trichomycteridae)" (PDF). Neotropical Ichthyology. 6 (3): 301–306. doi:10.1590/S1679-62252008000300002.
  3. Froese, Rainer and Pauly, Daniel, eds. (2007). "Glaphyropoma rodriguesi" in FishBase. July 2007 version.


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