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Thursday, February 18th, 2016
| Time | Event | ||
| 4:19a | [Ichthyology • 2016] “Barbus” validus • A New Small Barb (Cyprininae: Smiliogastrini) from the N’sele and Mayi Ndombe Rivers in the Lower Reaches of the Middle Congo Basin (Democratic Republic of Congo, Central Africa)
ABSTRACT A new species of smiliogastrin cyprinid is described from tributaries of the middle Congo River in the Democratic Republic of Congo. Restriction of the genus name, Barbus, to certain large-bodied, (polyploid) barbins, and current uncertainty regarding phylogenetic relationships among the numerous small-bodied African (diploid) barbs, renders generic assignment for the new species problematical. Pending the results of ongoing systematic analyses, and to reduce short-term nomenclatural instability, the new species is described here as a species of “Barbus.”3 “Barbus” validus, new species, is readily distinguished from all other small-bodied African barbs by the combined possession of scales in midlateral series that are not enlarged relative to those along the impinging rows above and below; well-developed barbels, with the maxillary pair extending beyond the level of mideye, and the mandibular pair reaching the level of midopercle; the presence of numerous conical tubercles over the snout, cheek, and dorsum of head; a small circular occipital fontanel located medially at the parietal suture; well-developed gill rakers, with 8 or 9 on the hypo- and ceratobranchial elements of the first arch; a last unbranched dorsal-fin ray that is weakly ossified and lacking serrations along the posterior border; and a dorsal fin that is creamy white proximally and with the distal half to two thirds darkly pigmented. Keywords: Congo River basin, cyprinine biodiversity, COI barcodes, taxonomy Melanie L.J. Stiassny, Tobit L.D. Liyandja, and Raoul J C Monsembula Iyaba. 2016. A New Small Barb (Cyprininae: Smiliogastrini) from the N’sele and Mayi Ndombe Rivers in the Lower Reaches of the Middle Congo Basin (Democratic Republic of Congo, Central Africa). American Museum Novitates. 3848: 1-15. DOI: 10.1206/3848.1 | ||
| 4:26a | [Ichthyology • 2016] Tomiyamichthys levisquama • Description of A New Species of Tomiyamichthys from Australia with A Discussion of the Generic Name  Abstract Tomiyamichthys levisquama is described as a new species from the Northern Territory and Queensland, Australia from estuaries and soft bottom marine environments. It is distinctive in body and head shape, head coloration and by the absence of ctenoid scales on the body. It is compared with the related species Tomiyamichthys russus (Cantor 1849), which has ctenoid scales on the posterior part of the body. The validity of the name Tomiyamichthys over Flabelligobius is discussed, with both genera being described in the same paper, here accepting Tomiyamichthys as the appropriate name. Keywords: Pisces, new species, Tomiyamichthys, Australia  Douglass F. Hoese, Kochi Shibukawa and Jeffrey W. Johnson. 2016. Description of A New Species of Tomiyamichthys from Australia with A Discussion of the Generic Name. Zootaxa. 4079(5) | ||
| 9:37a | [Herpetology • 2016] Brachycephalus sulfuratus • A New Species of Flea-Toad (Anura: Brachycephalidae) from southern Atlantic Forest, Brazil
Abstract We describe a new species of Brachycephalus that is morphologically similar to the flea-toads B. didactylus, B. hermogenesi, and B. pulex. The new species occurs from the sea level up to 1000 m and it is widely distributed throughout southern Atlantic Forest. Brachycephalus sulfuratus sp. nov. is distinguished from all of its congeners by the combination of the following characters: (1) small body size (SVL of adults: 7.4–8.5 mm for males and 9.0–10.8 mm for females); (2) “leptodactyliform” body; (3) pectoral girdle arciferal and less robust compared to the Brachycephalus species with “bufoniform” body; (4) procoracoid and epicoracoid fused with coracoid but separated from the clavicle by a large fenestrae; (5) toe I externally absent; toes II, III, IV, and V distinct; phalanges of toes II and V reduced; (6) skin smooth with no dermal ossifications; (7) in life, general background color brown with small dark-brown spots; skin of throat, chest, arms, and forearms with irregular yellow blotches; in ventral view, cloacal region of alive and preserved specimens surrounded by a dark-brown inverted v-shaped mark outlined with white; (8) advertisement call long, composed of a set of 4–7 high-frequency notes (6.2–7.2 kHz) repeated regularly. Keywords: Amphibia, Brachycephalus, Psyllophryne, taxonomy Thais Helena Condez, Juliane Petry de Carli Monteiro, Estevão Jasper Comitti, Paulo Christiano de Anchieta Garcia, Ivan Borel Amaral and Célio Fernando Baptista Haddad. 2016. A New Species of Flea-Toad (Anura: Brachycephalidae) from southern Atlantic Forest, Brazil. Zootaxa. 4083(1): |
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