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Meristic and morphometric characters of the holotype, paratype, and 12 additional specimens of the new species Rhonciscus pauco.

Meristic and morphometric characters of the holotype, paratype, and 12 additional specimens of the new species Rhonciscus pauco.

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Figure 5 Rhonciscus pauco, sp. nov. Underwater photograph taken at 218...
Meristic and morphometric characters of the holotype, paratype, and 12...
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A new species of deep-sea grunt, Rhonciscus pauco (Lutjaniformes: Haemulidae), from Puerto Rico
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  • Jun 2022
A fourth species of the genus Rhonciscus (Lutjaniformes: Haemulidae) is described from various specimens collected by small-scale fishers from the insular upper slope of western Puerto Rico. The new species was molecularly recovered as sister to the Eastern Pacific R. branickii , to which it bears many morphological similarities. It is distinguishe...
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Context 1
... and measurements follow Bussing (1993) and Rocha & Rosa (1999). Measurements were made with calipers and recorded to the nearest 0.1 mm and are presented in Table 1. Information on other Rhonciscus species is included in Table 2 for comparison. ...

Citations

... (2014), Kritsky et al. (2009), and Mendoza-Franco et al. (2009, 2017. Among these perciforms, members of Haemulidae and Lutjanidae include commercially important shore fishes in the Tropics (Tavera et al., 2022); many of them have been reported to be parasitized by these monogenoids. Here, as part of ongoing research, which began in 2017 and is focused on metazoan parasite communities of haemulids and lutjanids from the Pacific coast of Mexico, monogenoids belonging to Euryhaliotrema and Haliotrematoides were found. ...
Species of Dactylogyridae (Monogenoidea, Polyonchoinea) from the gills of haemulid and lutjanid fishes (Perciformes) from the Pacific coast of Mexico
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Full-text available
  • May 2023
  • Syst Parasitol
Examination of the gill lamellae of the Panama grunt Rhencus panamensis (Steindachner) (Haemulidae), golden snapper Lutjanus inermis (Peters), and yellow snapper Lutjanus argentiventris (Peters) (Lutjanidae) (Perciformes) from the coast of the Guerrero State (eastern Tropical Pacific) of Mexico revealed 5 species of Monogenoidea: Euryhaliotrema disparumn. sp. on R. panamensis; Haliotrematoides uagroin. sp. on L. inermis; and E. anecorhizion Kritsky & Mendoza-Franco, 2012, E. fastigatum (Zhukov, 1976) Kritsky & Boeger, 2002, and E. paracanthi (Zhukov, 1976) Kritsky & Boeger, 2002 on L. argentiventris. Specimens found on R. panamensis were assigned within Euryhaliotrema as a new species possessing the atypical morphology of the male copulatory organ (i.e., a coiled tube with clockwise rings). Haliotrematoides uagroin. sp. differs from Haliotrematoides striatohamus (Zhukov, 1981) Mendoza-Franco, Reyes-Lizama & Gonzalez-Solis, 2009 from Haemulon spp. (Haemulidae) from the Caribbean Sea (Mexico) in having inner blades on the distal shafts of the ventral and dorsal anchors. The present paper represents the first finding of a species of Euryhaliotrema (E. disparumn. sp.) on a species of Rhencus and the second species on a haemulid host, and H. uagroin. sp. as the first monogenoidean species described on L. inermis. Euryhaliotrema anecorhizion, E. fastigatum, and E. paracanthi on L. argentiventris in the Pacific coast of Mexico represent new geographical records.
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