Finding Nemo! Description of a New Species of Branchial Fish Parasitic Cymothoid, Elthusa Schioedte and Meinert, 1884 (Crustacea: Isopoda), infesting Callionymus filamentosus Valenciennes, 1837 from the Northern Indian Ocean.
Acta Parasitol
; 69(1): 358-369, 2024 Mar.
Article
em En
| MEDLINE
| ID: mdl-38103154
ABSTRACT
PURPOSE:
Specimens of Elthusa from trashfish of the Indian SW coast were described as a new parasitic cymothoid, Elthusa nemo sp. nov., (Crustacea Isopoda). Later, the branchial cavity of the Blotchfin dragonet Callionymus filamentosus Valenciennes, 1837 were documented as its micro- and macro-habitat (host).METHODS:
Fresh/live specimens of unidentified cymothoid samples were collected from the trash fishes obtained from Neendakara (08°30.0' N 76°53.30' E) fish landing centre, Kollam district, Kerala state, southwest coast of India. After a long search for the host species, we recovered the isopod from the branchial cavity of the deep-sea fish Callionymus filamentosus Valenciennes, 1837 (Callionymiformes Callionymidae). The new species is described and illustrated based on ovigerous females.RESULTS:
Elthusa nemo sp. nov., has the following sets of combinations of characters body slightly twisted, elongated, dorsal surfaces smooth, nearly twice as long as greatest width; pleon short, ~ 14% body length, 0.8 times as wide as pereon maximum width; widest at pleonite 2 and narrowest at pleonite 1; only pleonite 1, laterally overlapped by pereonite 7 posterolateral expansion and coxa 7; presence of appendix masculina on pleopod 2; uropods 0.8 times as the length of pleotelson; antenna with two plumose setae on article 4.CONCLUSION:
Elthusa nemo sp. nov., is the sixth species of the genus known from Indian waters.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Isópodes
/
Doenças dos Peixes
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article