aqua International Journal 22(4)
Volume 22, Issue 4 – 22 October 2016
20 in stock
Volume 22, Issue 4 – 22 October 2016
Gerald R. Allen and Mark V. Erdmann: Asterropteryx profunda, a new species of goby (Pisces: Gobiidae) from Papua New Guinea and Indonesia, pp. 145-154
A new species of goby, Asterropteryx profunda, is described on the basis of three adult specimens, 9.5-10.9 mm SL, from Milne Bay Province in Papua New Guinea and Lembeh Strait, North Sulawesi Province of Indonesia. It has also been photographed at Anilao, Luzon, Philippines. The new taxon is a member of the spinosa complex ofAsterropteryx, which also includes A. ipunctata, A. ovata, A. senoui, and A. spinosa from the tropical western Pacific. It most closely resembles A. bipunctata and A. ovata, which are characterized by numerous orange spots on the head and body and a conspicuous black spot on the caudal-fin base. However, it differs notably from both species in possessing a broad, black bar below the eye, a vertically ovate rather than a round or horizontally ovate marking on the caudal-fin base, and lacking a filamentous fourth dorsal spine in adults. It further differs from A. ovata in having all the preopercular spines of similar size and from A. bipunctata in lacking a large black spot at the base of the first three dorsal spines. The new species occurs in relatively deep water, approximately 45-70 m, compared to other members of the genus.
Stefano Valdesalici, Dalton Tavares Bressane Nielsen, Roger Brousseau and Jurij Phunkner: Papiliolebias habluetzeli (Cyprinodontiformes: Cynolebiidae) a new miniature annual fish from the upper Rio Mamoré, Bolivia, pp. 155-164
Papiliolebias habluetzeli, new species, is described based on specimens collected in a seasonal pool in Rio Mamoré basin, around the town of Trinidad, northern Bolivia. It differs from all the other species of the genus apart from Papiliolebias francescae by the following features in males: dorsal and anal fins pointed, proximal half portion of dorsal and anal fin whitish with broad dark red stripes, caudal fin with transverse rows of dark red spots and metallic golden blotch on humeral region. It differs from Papiliolebias francescae by male flank and anal fin color pattern and different number of branchiostegal rays and pelvic fin rays.
Dalton Tavares Bressane Nielsen: Description of two new species of Anablepsoides (Cyprinodontiformes: Cynolebiidae) from Rio Madeira, Amazon drainage, Rondônia state and from Rio Itapecurú, Maranhão state, Brazil, pp. 165-176
Anablepsoides luitalimae, new species, from the rio Madeira basin, southwestern Amazonia, Brazil, and Anablepsoides vieirai, new species, from the rio Itapecuru basin, eastern Amazonia, Brazil, are described. A. luitalimae belongs to the Anablepsoides limoncochae species group and A. vieirai belongs to the Anablepsoides urophthalmus species group. Anablepsoides luitalimae is distinguished from other species of the Anablepsoides limoncochae species group by having blue pelvic fins and one longitudinal line with 6 minute contact organs on the sides of the body. Anablepsoides vieirai is distinguished from other species of the Anablepsoides urophthalmusspecies group by the presence of black spots in the head, opercular region and behind the eye and a higher number of scales in longitudinal series.
Stefano Valdesalici, Omar Domínguez- Castanedo and Miguel Ángel Mosqueda-Cabrera: Patterns of reproductive behaviour in Millerichthys robustus (Cyprinodontiformes: Cynolebiidae), pp. 177-180
Millerichthys robustus is the only annual cynolebiid species in Mexico. The purpose of the present study is to describe patterns of reproductive behaviour in this species. Seven individual units of behaviour were identified in males and five in females, some of which exhibit differences that can be interpreted as specifically derived conditions. In Millerichthys robustus, the phase of invitation to submerge/dive was not initiated by the male, but by the female.
|Dimensions||26.6 × 20.3 × 0.3 cm|