A New Species of Mymarothecium tantaliani n. sp (Monogenea: Dactylogiridae) in the Gills of Gamitana Colossoma macropomum (Cuvier) from Madre de Dios, Peru.

Abstract:

INTRODUCTION:Members of the genus Mymarothecium Kritsky, Boeger & Jégu, 1996 infect characiform fish in the Amazon River Basin. Although the Peruvian Amazon hosts rich fauna of fish, the taxonomic diversity of parasitic organisms such as Mymarothecium has been few explored. A new species of Mymarothecium in Colossoma macropomum Cuvier, from the southeast of the Peruvian Amazon, is described. METHODS:Monogeneans were isolated from gills of C. macropomum, fixed in formaldehyde in 4% solution. For morphological examinations were stained with Gomori's trichrome and others were clarified with Hoyer's medium. RESULTS:Mymarothecium is the third species of the genus recorded in C. macropomum. These new species have been characterized by a slightly sigmoid male copulatory organ (MCO) and the accessory piece with sinuous distal rod with hook-shaped process and a bifurcation in the middle part. Furthermore, the anteromedial projection of the ventral rod has a small conspicuous filament in both anchors. CONCLUSIONS:With the description of this new species, eight species of Mymarothecium have been reported in fish of the Serrasalmidae family originating in the Amazon.

journal_name

Acta Parasitol

journal_title

Acta parasitologica

authors

Cayulla-Quispe D,Mondragón-Martínez A,Rojas-De-Los-Santos E,Garcia-Candela E,Babilonia-Medina J,Martínez-Rojas R

doi

10.1007/s11686-020-00248-5

subject

Has Abstract

pub_date

2020-07-12 00:00:00

eissn

1230-2821

issn

1896-1851

pii

10.1007/s11686-020-00248-5

pub_type

杂志文章