geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Heptapterus collettii Steindachner, 1881 A member of the Asian bagrid genus Olyra erroneously assigned to the neotropical fauna


, : Heptapterus collettii Steindachner, 1881 A member of the Asian bagrid genus Olyra erroneously assigned to the neotropical fauna. Copeia (3): 665-675, August 20

Heptapterus collettii Steindachner, 1881, a catfish described from La Plata basin in South America, has a puzzling set of characters for Neotropical siluriforms. Examination of one syntype shows that H. collettii does not belong to Heptapteridae or any other Neotropical family but rather to Olyra, a genus of Bagridae endemic to South Asia. Thus, it should be referred to as Olyra collettii. The species has nasal barbels on the posterior nares (shared with various Old-World catfish taxa), a wide separation between the anal and urogenital openings (shared with a large subgroup of Bagridae) and a unique structure of the first lateral-fine ossicle (shared with species of Olyra). The species is similar to Olyra longicaudata, although there are significant morphometric and meristic differences. Current problems in the taxonomy of Olyra prevent conclusive resolution of the identity of O. collettii. The presence of a species of Olyra in South America is unlikely, and we consider this to be a result of mistaken locality records.

US$29.90


Other references

Belyak, B.S., 1962: The use of Phenoform-forte. Phenoform-forte, a Czech preparation containing 10% gamma-hexachlorocyclohexane dissolved in organic solvents, plus cresol, has been used successfully in the form of 0.25-1.0% solutions or a 0.5-1.0% vaseline ointment in the control of fleas, mite...

Godenèche, A.; Freychet, B.; Lanzetti, R.Maria.; Clechet, J.; Carrillon, Y.; Saffarini, M., 2016: Should massive rotator cuff tears be reconstructed even when only partially repairable?. (1) To evaluate midterm functional outcomes of arthroscopic repair of massive rotator cuff tears and (2) to determine the prognostic factors that could influence outcome. The hypothesis was that both partial and complete repairs would result in eq...

Toyota T.; Sato S.; Kudo M.; Goto A., 1974: Cyclic amp on insulin and glucagon secretion. Folia Endocrinologica Japonica 50(2): 237

Wilce, R.T.; Pedersen, P.M.; Sekida, S., 2009: Chukchia Pedicellata Gen. Et Sp. Nov. And C. Endophytica Nov. Comb., Arctic Endemic Brown Algae (Phaeophyceae)(1). Study of the north Alaskan brown algal epiphyte Chukchia pedicellata sp. nov. suggests an apparently close relationship to Phaeostroma. Phaeostroma endophyticum S. Lund from east Greenland, Bylot Island, Nunavut, Canada, shows generic identity wit...

Nakagawa, H.; Yamashita, M.; Ogose, Y.; Shinohara, M.; Ohura, K.; Kitagawa, H., 1999: Isolation of a heparin-binding lectin from the pedicellarial venom of sea urchin, Tripneustes gratilla. Japanese Journal of Pharmacology 79(SUPPL 1): 129P

Gao, L.; Yu, L-Chuan., 2004: Involvement of opioid receptors in the oxytocin-induced antinociception in the central nervous system of rats. Recent studies showed that oxytocin and opioid peptides play important roles in pain modulation at different levels in the central nervous system. The present study was performed to explore whether opioid system is involved in the oxytocin-induced...

Dupuis, Christine, 2003: Cosmetic composition containing an anionic or nonionic polymer and a carboxylic silicon. The invention concerns a cosmetic composition for treating keratinous fibers, in particular hair, containing at least an anionic or non-ionic polymer and at least one silicon comprising at least a carboxylic acid function, as well as the method fo...

Laugharne, R.; Priebe, S., 2006: Trust, choice and power in mental health: a literature review. Trust, choice and empowerment of patients are emerging as important issues in mental health care. This may be due to an increasingly consumerist attitude amongst patients and as a consequence of postmodern cultural changes in society. This study a...

Tweedie M., 1971: The beauty of spiders webs. Animals (London) 13(18): 855

Yoshizawa, Kazunori, 1996: First record of Reuterella helvimacula from Japan. Japanese Journal of Entomology 64(1): 187-188