Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                        
Specimen Records:500Public Records:125
Specimens with Sequences:400Public Species:20
Specimens with Barcodes:398Public BINs:26
Species:48         
Species With Barcodes:43         
          
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Barcode data

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Locations of barcode samples

Collection Sites: world map showing specimen collection locations for Heptapteridae

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Wikipedia

Heptapteridae

The Heptapteridae are a family of catfish that originate from Mexico to South America.[2] Heptapteridae is derived from Greek, hepta meaning seven and pteron meaning fin.[3]

The diversity of this family is poorly known, and many species are yet to be described.[2] So far, some 190 species have been described. This family is equivalent to the previously recognized Rhamdiinae, a subfamily of the family Pimelodidae.[2] However, molecular evidence shows this family is a part of the superfamily Pimelodoidea along with Pimelodidae, Pseudopimelodidae, and Conorhynchos.[4]

The skin of these fish is usually naked (scaleless). They exhibit three pairs of barbels. They have a large adipose fin, and their caudal fin is deeply forked. However, no external characteristics unique to this family allow it to be differentiated from Pimelodidae.[2]

The Heptapteridae include a few troglobitic species in the genera Pimelodella, Rhamdia, and Taunayia, as well as in an undescribed genus.[5]

References[edit]

  1. ^ "Heptapteridae". Integrated Taxonomic Information System. Retrieved 7 April 2007. 
  2. ^ a b c d Nelson, Joseph, S. (2006). Fishes of the World. John Wiley & Sons, Inc. ISBN 0-471-25031-7. 
  3. ^ Froese, Rainer, and Daniel Pauly, eds. (2007). "Heptapteridae" in FishBase. Apr 2007 version.
  4. ^ Sullivan, JP; Lundberg JG; Hardman M (2006). "A phylogenetic analysis of the major groups of catfishes (Teleostei: Siluriformes) using rag1 and rag2 nuclear gene sequences". Mol Phylogenet Evol. 41 (3): 636–62. doi:10.1016/j.ympev.2006.05.044. PMID 16876440. 
  5. ^ Bichuette, Maria Elina; Trajano, Eleonora (2005). "A new cave species of Rhamdia (Siluriformes: Heptapteridae) from Serra do Ramalho, northeastern Brazil, with notes on ecology and behavior". Neotropical Ichthyology 3 (4): 587–595. doi:10.1590/S1679-62252005000400016. 
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