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Volume 20, Issue 3 - 29 July 2014

20(3)-cover560

Volume 20, Issue 3 - 29 July 2015
New Scientific pubblication - started delivery on April 29, 2014

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Stefano Valdesalici and Roger Brousseau: A new Papiliolebias species (Teleostei: Cyprinodontiformes: Rivulidae) from Bolivian Amazon, pp. 117-122

Abstract

Papiliolebias francescae, new species, is described based on specimens collected in a seasonal pool in Rio San Pablo drainage, Departamento Santa Cruz, central Bolivia. It differs from its congeners by the following unique features in males: dorsal and anal fins pointed; oblique, chevronshaped, blue-gray and dark red stripes in close proximity on flanks; proximal half dorsal and anal fin whitish with broad dark red elongated spots; caudal fin with two or three transverse rows of dark red spots; pupil with anterior pointed extension.

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Papiliolebias

 

 

Papiliolebias francescae, MSNG 57820, male, holotype, 21.3 mm SL: Bolivia, San Pablo drainage (in life). Photo by S. Valdesalici.

 

 

 

Fenton Walsh: Cirrhilabrus squirei, a new wrasse (Perciformes; Labridae) from the Great Barrier Reef and Coral Sea, Australia, pp. 123-130

Abstract

Cirrhilabrus squirei, a new species of labrid fish from the Great Barrier Reef and Coral Sea, Australia is described from four specimens, 36.2-56.3 mm SL. The new species is one of only four Cirrhilabrus known to possess a lunate caudal fin and of these C. squirei has the largest caudal concavity. The new species most closely resembles C. johnsoni from the Marshall Islands, but males of the new species are larger and possess a shorter snout. Cirrhilabrus squirei also has different fin colouration, with terminal males lacking the bright red dorsal, caudal and anal fins of C. johnsoni and instead possessing yellow fins with distinct black and lavender-black central bands.

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Cirrhilabrus

 

 

Holotype of Cirrhilabrus squirei, QM I.39099, male 53.4 mm SL, Holmes Reef, Coral Sea. Photo by F. M. Walsh.

 

 

Dalton Tavares Bressane Nielsen, Mayler Martins, Luciano Medeiros de Araujo, Fabio Origuela de Lira and Amer Faour: Hypsolebias trifasciatus, a new species of annual fish (Cyprinodontiformes: Rivulidae) from the rio Preto, rio São Francisco basin, northeastern Brazil, pp. 131-138

Abstract

Hypsolebias trifasciatus n. sp. is described from a temporary pool located on the left bank of the rio Preto, a tributary of the rio São Francisco. It is the first species of the H. adornatus complex recorded in a tributary rather than the rio São Francisco main channel. This species is distinguished from the remaining Hypsolebias species, with the exception of those belonging to the H. adornatus complex, by the high number of dorsal fin rays (27-28), and consequently a large dorsal fin base length, beginning considerably anteriorly to the middle of the body, before the vertical line through the pelvic fin. The new species differs from the remaining species of the H. adornatus complex by the color pattern of the anal fin, which consists in longitudinal, alternating three yellow and three black stripes (vs. stripes absent in the remaining Hypsolebias of the H. adornatus complex, or relatively inconspicuous 2 yellow stripes and 2-3 gray stripes in H. lopesi), and a unique pattern of the dorsal-fin color in males, with the presence of two groups of 3-4 irregularly-shaped, large yellow spots (vs. absence of a such pattern in the remaining Hypsolebias of the H. adornatus-group).

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20(3) HYPSOLEBIAS

 

 

Hypsolebias trifasciatus, ZUEC 8302, male, holotype, 30.7 mm SL: Brazil, Bahia, Santa Rita de Cássia. Photo by D. Nielsen.

 

 

 

Gerald R. Allen, Peter J. Unmack and Renny K. Hadiaty: Three new species of Rainbowfishes (Melanotaeniidae) from the Birds Head Peninsula, West Papua Province, Indonesia, pp. 139-158

Abstract

Three new species of melanotaeniid rainbowfishes are described from fresh waters of the Birds Head Peninsula, West Papua Province, Indonesia. Melanotaenia ericrobertsi is described from 41 specimens, 18.4-52.1 mm SL, from the upper Kladuk River system. It was first collected in 1982 and included among the type series of M. irianjaya. However, recent genetic evidence reveals it is a distinct species, closely related to Melanotaenia from nearby drainages including M. ajamaruensis, M. boesemani, M. fasinensis, and two additional new species described in this paper, M. laticlavia and M. multiradiata. Melanotaenia laticlavia is described on the basis of 6 specimens, 33.7-69.6 mm SL from Aifuf Creek, and M. multiradiata from 23 specimens, 37.4-122.5 mm SL from Sisiah Creek. These Birds Head species are primarily distinguished on the basis of distinctive adult male colour patterns and cytochrome b genetic analysis. However, M. laticlavia exhibits two separate patches of vomerine teeth, an unusual
melanotaeniid feature, and M. multiradiata has a relatively high pectoral-fin ray count (> 90 % with 15 rays or more).

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Melanotaenia

 

 

Aquarium photograph of freshly collected holotype of Melanotaenia multiradiata, male, 122.5 mm SL, Sisiah Creek, West Papua. Photo by G. R. Allen.

 


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aqua is an international journal which publishes original scientific articles in the fields of systematics, taxonomy, bio-geography, ethology, ecology, and general biology of fishes since 1994. Papers on freshwater, brackish, and marine fishes will be considered. aqua is fully refereed and aims at publishing manuscripts within 2-4 months of acceptance. In view of the importance of colour patterns in species identification and animal ethology, authors are encouraged to submit colour illustrations in addition to descriptions of coloration. It is our aim to provide the international scientific community with an efficiently published journal meeting high scientific and technical standards.

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