Lima Albertina P, Simões Pedro Ivo, Kaefer Igor Luis
Coordenação de Pesquisas em Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, Av. André Araujo 2936, 69011-970, Manaus, Amazonas, Brazil.; Email:
Coordenação de Pesquisas em Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, Av. André Araujo 2936, 69011-970, Manaus, Amazonas, Brazil. Laboratório de Sistemática de Vertebrados, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga 6681, Prédio 40, sala 110, 90619-900, Porto Alegre, RS, Brazil.; Email:
Zootaxa. 2014 Dec 2;3889(3):355-87. doi: 10.11646/zootaxa.3889.3.2.
We describe a new species of Allobates from the south of eastern Amazonia, Brazil. This species inhabits fluvial springs and the banks of small streams in terra-firme forests along the Tapajós River basin. Average snout-to-vent length is 17.78 mm (range 16.09-19.59 mm) among males and 19.50 mm (range 17.97-20.84 mm) among females. Surface of dorsum is marked by a distinct dark color pattern, with three convex areas, triangle and diamond-shaped. The species has a diffuse pale dorsolateral line (absent in some specimens), while the oblique lateral bar is defined. Dark-brown transversal stripes are present on femoral and tibial dorsal surfaces, which align with each other in live specimens when at rest. Tadpoles have short papillae on anterior (8-10 papillae on each side) and posterior labium (>30 papillae). Posterior labium is projected to the front, hiding posterior tooth rows. Eggs are deposited in nests on rolled or cranked dead leaves on the forest floor. Egg membranes and jelly-nests are transparent. Advertisement calls are mainly characterized by the continuous emission of single notes that might shift sporadically to note-pairs, emitted during short periods. Notes are split by regular silent intervals, with peak frequency ranging between 4273-4867 Hz.
我们描述了一种来自巴西东部亚马逊南部的新箭毒蛙物种。该物种栖息于塔帕若斯河流域沿岸高地森林中的河流水源地和小溪岸边。雄性个体的平均吻肛长度为17.78毫米（范围为16.09 - 19.59毫米），雌性个体的平均吻肛长度为19.50毫米（范围为17.97 - 20.84毫米）。背部表面有独特的深色图案，有三个凸起区域，呈三角形和菱形。该物种有一条模糊的浅色背侧线（某些标本中没有），而斜向侧斑清晰。股部和胫部背面有深棕色横向条纹，活体标本静止时这些条纹相互对齐。蝌蚪的前唇（每侧8 - 10个乳突）和后唇（超过30个乳突）上有短乳突。后唇向前突出，遮住后齿列。卵产在森林地面上卷曲或弯折的枯叶上的巢穴中。卵膜和胶质巢是透明的。求偶叫声的主要特征是持续发出单音，可能偶尔会转变为双音，在短时间内发出。音之间有规律的静音间隔，峰值频率在4273 - 4867赫兹之间。
