Dias Pedro Henrique dos Santos, Amaro Renata Cecília, de Carvalho-e-Silva Ana Maria Paulino Telles, Rodrigues Miguel Trefaut
Zootaxa. 2013;3682:277-304. doi: 10.11646/zootaxa.3682.2.5.
We describe two new species of Proceratophrys allied to the P. appendiculata species complex by the presence of single and long palpebral appendages and a triangular rostral appendage. Proceratophrys izecksohni sp. nov. is characterized by having small to medium size (SVL 32.1-54.2 mm in males), elongated hindlimbs (thigh length plus tibia length corresponding to more than 90% of snout-vent length), a broad head (head width corresponding to 55% of the snout-vent length), and by the light brown gular region and a cream colored ventral surface with scattered brown dots. Proceratophrys belzebul sp. nov. is characterized by its medium size (SVL 40.5-51.3 mm in males), by the absence of contact between the nasals bones and between the nasals and frontoparietals, by a very reduced iliac projection, by having frontoparietal bones very depressed and broad rostrally, by the smooth surface of the squamosal and nasal, by shallow, inconspicuous ventral pits on the maxillae, and by the females presenting the gular region dark brown. The two new species were previously confused with P. appendiculata for which we provide a new diagnosis. A molecular analysis based on mitochondrial and nuclear genes recovers a monophyletic Proceratophrys with high support, and the two new species in a clade with P. appendiculata and P. tupinamba. The data also reinforce the idea that the species groups presently admitted to the genus are not monophyletic.
我们描述了两种新的角蟾属物种，它们与具附肢角蟾物种复合体相关，其特征为具有单一且长的眼睑附肢和一个三角形吻部附肢。伊泽克斯角蟾新物种的特征在于体型小至中等（雄性体长32.1 - 54.2毫米），后肢细长（大腿长度加胫骨长度超过吻肛长度的90%），头部宽阔（头宽相当于吻肛长度的55%），以及浅棕色的喉部区域和带有散布棕色斑点的奶油色腹面。别西卜角蟾新物种的特征在于其体型中等（雄性体长40.5 - 51.3毫米），鼻骨之间以及鼻骨与额顶骨之间不接触，髂骨突起非常退化，额顶骨非常凹陷且吻部宽阔，鳞骨和鼻骨表面光滑，上颌骨上有浅而不明显的腹侧凹坑，以及雌性的喉部区域为深棕色。这两个新物种之前被与具附肢角蟾混淆，我们为此提供了新的诊断。基于线粒体和核基因的分子分析以高支持率恢复了一个单系的角蟾属，并且这两个新物种与具附肢角蟾和图皮南巴角蟾在一个分支中。这些数据也强化了目前归入该属的物种组并非单系的观点。
