+ 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

Rhamdia guasarensis (Siluriformes: Heptapteridae), a new species of cave catfish from the Sierra de Perija, northwestern Venezuela

, : Rhamdia guasarensis (Siluriformes: Heptapteridae), a new species of cave catfish from the Sierra de Perija, northwestern Venezuela. Proceedings of the Biological Society of Washington 117(4): 564-574

Rhamdia guasarensis n. sp. is described from subterranean waters in the Rio Guasare drainage of northwestern Venezuela. The new species is distinguished from congeners by its concave head profile; medially sutured frontal bones; small, circular vestige of the anterior cranial fontanelle; and troglomorphic characters such as absence of eyes and pigmentation, wide cephalic laterosensory pores, and wide fossae of preoperculomandibular sensory canal in preopercle and dentary. Cave catfish diversity in the Sierra de Perija region of Venezuela is reviewed and compared to cave catfish diversity elsewhere in South America.


Other references

Olivas, E.; Chen, B.B.D.M.; Walker, W.S., 1995: Use of the Pannell-Milstein roller bottle apparatus to produce high concentrations of the CSF-1, the mouse macrophage growth factor. A simple roller bottle apparatus for growing B cell hybridomas in dialysis tubing yields high concentrations of monoclonal antibodies (Pannell and Milstein, J. Immunol. Methods (1992) 146, 43-48). Here we describe an adaptation of this apparatus f...

Wolfrum, P., 1933: Neue Anthri-biden von den Philippinen, Sandakan (Nord-Borneo) und Singapore. Entomologische Blaetter Berlin, 29: 86-90,128-135,183-188

Kleijer, W.J.; Geilen, G.C.; Garritsen, V.; Huijmans, J.G.; Los, F.J.; Voznyi, Y.V.; van Diggelen, O.P., 2000: First-trimester diagnosis of Morquio disease type A. Since the introduction in 1990 of a novel fluorogenic substrate for galactose-6-sulphate sulphatase we have used this substrate for prospective prenatal diagnosis in 10 pregnancies at risk for Morquio disease type A. Chorionic villi were analysed...

Railkin, AI., 1999: Benthos, periphyton and classification of ecological groups. Vestnik Sankt-Peterburgskogo Universiteta Seriya 3 Biologiya. 1998 Avgust; 3: 10-12, 121 No 17

Litvinova, M.K., 1976: Characteristics of mutations in the M1-M3 of beetroot obtained after treatment with chemical mutagens. When seeds of Bordeaux 237 were treated with N-nitroso-N-ethylurea and dimethyl sulphate, the mutants obtained included forms with earliness, lodging resistance (in the seed plants) and monogermy or digermy. The results are given of an analysis of...

Masinovskii, Z.B.; Lozovaya, G.I.; Sivash, A.A.; Klimenko, I.V., 1992: Modelling of the evolution of photobiological systems using the example of protoporphyrin-IX-containing complexes. Protoporphyrin IX has a special position in the evolution of photosynthesis. Absorption and fluorescent characteristics of this pigment and its complexes with human serum albumin, basic proteinid, lipid lecithin and lipid-like substances have been...

Tomita, H.; Araki, T.; Kadokami, T.; Yamada, S.; Nakamura, R.; Imamura, Y.; Fukuyama, T.; Nagano, D.; Hashimoto, T.; Uematsu, A.; Hosokawa, K.; Yamamoto, K.; Ueda, S-Ichiro.; Ando, S-Ichi., 2016: Factors influencing trough and 90-minute plasma dabigatran etexilate concentrations among patients with non-valvular atrial fibrillation. Dabigatran etexilate, a direct oral anti-coagulation agent, is used in the prevention of thromboembolism in patients with non-valvular atrial fibrillation (NVAF). However, for reasons that are not fully understood, plasma dabigatran etexilate conc...

Williams, M.H., 2014: Intrabronchial hemorrhage in battle casualties. Journal of Thoracic Surgery 16(4): 342-352

Boone, J., 1988: One stop: medical mall has it all. Texas Hospitals 43(10): 26-28

Zoporowski, A.; Miller, S.A., 2009: Modelling eruption cycles and decay of mud volcanoes. Recent debates about the eruptive behavior of mud volcanoes and their activation mechanisms have been driven particularly by the LUSI eruption in Indonesia that resulted in huge commercial and cultural damages. Numerical modeling of mud volcanoes,...