Description of a new maternal larvophilic mouth-brooding cichlid species, Apistogramma megastoma sp. n. (Teleostei: Perciformes: Geophaginae), from Loreto, Peru

Vertebrate Zoology

article

Uwe Römer¹  Clara Isis Römer²  Guillain Estivals²  Antonia Vela Díaz²  Fabrice Duponchelle²  Carmen Rosa García Dávila²  Ingo Hahn⁶  Jean-François Renno² 

[1] Universität Triercom;Laboratoire Mixte International – Evolution et Domestication de l’Ichtyofaune Amazonienne [LMI – EDIA];Instituto de Investigaciones de la Amazonia Peruana [IIAP];Universidad Nacional Federico Villareal;Institut de Recherche pour le Développement [IRD];Munich University of Applied Sciences, Faculty of Geo-information

关键词: Biodiversity;    ichthyology;    new taxa;    systematics;    Neotropics;    freshwater;    ecology;    reproductive behaviour;   

DOI  :  10.3897/vz.67.e31580

学科分类：社会科学、人文和艺术（综合）

来源: Pensoft

【 摘 要 】

Apistogramma megastoma sp. n. is described based on a total of 18 specimens from small forest streams in the Departamento Loreto, Peru, tributaries of the Río Jutai in the border area between Peru and Brazil south and west of the city of Leticia (Colombia) (near 04°12′ S / 70°06′ W). Apistogramma megastoma sp. n., which may be confused only with A. barlowi, is distinguished from all other Apistogramma species by the combination of: noticeably disproportionately large head; exceptionally massive jaws, lyrate densely vertically banded caudal fin, extended dorsal-fin membranes in males; in aggressive females sooty head pattern and up to 8 series of small black dashes on flanks; small round caudal spot; and, exceptional for Apistogramma, maternal mouth-brooding behaviour. Distinguished from A. barlowi, by differences in colour pattern and by higher number of scale rows on cheeks. Apistogramma megastoma sp. n. inhabits in small fastflowing streams.

【 授权许可】

CC BY