New species of Anacanthorus (Dactylogyridae: Anacanthorinae) from the gills of Hoplerythrinus unitaeniatus and Erythrinus erythrinus (Characiformes: Erythrinidae) of the coastal drainage in the Eastern Amazon, Brazil

Zootaxa ◽  
2019 ◽  
Vol 4615 (2) ◽  
pp. 303
Author(s):  
JOÃO F. SANTOS NETO ◽  
JANICE MURIEL-CUNHA ◽  
MARCUS V. DOMINGUES
Keyword(s):  
New Species ◽  
Male Copulatory Organ ◽  
Copulatory Organ ◽  
Distal Portion ◽  
Distal Region ◽  
Parasite Diversity ◽  
Drainage Systems ◽  
Host Parasite ◽  
Hoplerythrinus Unitaeniatus

Species of Anacanthorus are described from the gills of Hoplerythrinus unitaeniatus and Erythrinus erythrinus of drainage systems in the Northeastern Pará State, Brazil. Anacanthorus scyphophallus sp. n. has a male copulatory organ (MCO) with two small flaps in the distal portion; hooks with proximal shank dilatation comprising ½ of the shank length. Anacanthorus ataidei sp. n. has an elongated MCO, with ribbon-like ornaments; hooks without proximal shank dilatation. Anacanthorus siphonocommus sp. n. has an MCO with aculeiform ornaments in the distal portion; hooks with proximal dilatation in the shank comprising ½ of the shank length. Anacanthorus maratininguensis sp. n. has an MCO with a small projection in the form of a hook in the distal region; hooks with proximal dilatation comprising ½ of the shank length. Anacanthorus lacinimentulatus sp. n. has an MCO with extrovert flap skirting its distal region; shank of hooks with proximal dilatation comprising ½ of the total shank length. Anacanthorus cururutuiensis sp. n. presents an MCO with flexed lateral flap in the distal region; hooks with proximal dilatation in the shank comprising ¼ of the shank length. Anacanthorus circumspatulatus sp. n. has an MCO with ornaments in the form of pointed and interleaved blades; hooks with proximal shank dilatation comprising approximately ½ of the shank length. Anacanthorus acrophallus sp. n. has MCO with a small pointed sinistral flap; hooks with proximal dilatation in the shank comprising 1/3 of the shank length. The host-parasite diversity scenario and specificity of Anacanthorus species regarding their characiform hosts are also discussed in this study. 

scholarly journals Overview of South African Dendromonocotyle (Monogenea : Monocotylidae), with descriptions of 2 new species from stingrays (Dasyatidae) kept in public aquaria

Zootaxa ◽  
2008 ◽  
Vol 1826 (1) ◽  
pp. 26 ◽  
Author(s):  
DAVID VAUGHAN ◽  
LESLIE CHISHOLM ◽  
KEVIN CHRISTISON
Keyword(s):  
New Species ◽  
South African ◽  
Male Copulatory Organ ◽  
Cape Town ◽  
Proximal Part ◽  
Copulatory Organ ◽  
Distal Portion ◽  
Diagnostic Character ◽  
Two New Species

Two new species, Dendromonocotyle citrosa n. sp. off Dasyatis chrysonota (Smith) from Two Oceans Aquarium in Cape Town and off Himantura gerrardi (Gray) from uShaka Sea World in Durban and D. ukuthena n. sp. off H. gerrardi and H. uarnak (Forsskal) also from uShaka Sea World in Durban, are described. These can be distinguished from previously described Dendromonocotyle species by the morphology of the distal portion of the male copulatory organ and the proximal part of the vagina. Vaginal morphology is proposed as an important diagnostic character for species in the genus. Dendromonocotyle colorni Chisholm, Whittington & Kearn, 2001 which was originally recorded from H. uarnak in Israel, was discovered on H. uarnak sympatrically with D. ukuthena n. sp. and with D. citrosa n. sp. and D. ukuthena n. sp. off H. gerrardi. Minor differences in the number of papillary sclerites, the presence of septal tripartite sclerites and in the number of eyespots were seen between D. colorni collected from H. uarnak and H. gerrardi from uShaka Sea World and those originally described off H. uarnak from Israel. We demonstrate that the position of the marginal hooklets can be used to determine the orientation of the haptor of all representative Dendromonocotyle species with or without hamuli. We conclude that Dendromonocotyle species may not be as host-specific as previously believed and that minor differences in morphology are host or geographically induced.

Two new species of Sciadicleithrum (Monogenea, Dactylogyridae) parasites of Neotropical cichlid fishes from the Paraná River, Brazil

2009 ◽  
Vol 54 (1) ◽  
Author(s):  
Fábio Yamada ◽  
Ricardo Takemoto ◽  
Sybelle Bellay ◽  
Gilberto Pavanelli
Keyword(s):  
New Species ◽  
Male Copulatory Organ ◽  
Copulatory Organ ◽  
Distal Portion ◽  
Paraná River ◽  
Dorsal Anchor ◽  
Cichlid Fishes ◽  
Parana River ◽  
Two New Species

AbstractTwo new species of Sciadicleithrum are described from the gills of Neotropical cichlid fishes collected from Paraná River, Brazil. Sciadicleithrum satanopercae sp. nov. is described from the gills of Satanoperca pappaterra and differs from congeners by having a dorsal anchor with the distal portion complex and the inner margin with a “denticulum” between shaft and point. Sciadicleithrum joanae sp. nov. is described from the gills of Crenicichla niederleinii and C. britskii collected from Paraná River. Sciadicleithrum joanae sp. nov. differs from congeners by having a male copulatory organ comprising about half a clockwise loop and a vaginal pore “bulb-shaped”.

Monogenoids (Polyonchoinea, Dactylogyridae) from Hydrolycus armatus (Characiformes, Cynodontidae) with the description of a new species of Rhinoxenus and the proposal of a new genus from the Xingu River, Pará, Brazil

Zootaxa ◽  
2019 ◽  
Vol 4700 (2) ◽  
pp. 229-245 ◽  
Author(s):  
GEUSIVAM B. SOARES ◽  
KEILA X. MAGALHÃES ◽  
ANA CAROLINA SILVA ◽  
JÂNIO S. CARNEIRO ◽  
LUCINEIA L. BARBOSA ◽  
...  
Keyword(s):  
New Species ◽  
Male Copulatory Organ ◽  
Accessory Piece ◽  
Copulatory Organ ◽  
Distal Portion ◽  
Ventral Anchor ◽  
Xingu River ◽  
Copulatory Complex ◽  
One New Species ◽  
A New Species

One new species of Rhinoxenus Kritsky, Boeger & Thatcher, 1988 from the nasal cavities and four new species of Mymarothecioides n. gen. from the gills are described in Hydrolycus armatus (Jardine & Schomburgk). They were collected in the Xingu River, Pará, Brazil. Rhinoxenus cachorra n. sp. is characterized by having a ventral anchor with inconspicuous roots, and point with fish-hook-like termination; copulatory complex comprising a spiraled male copulatory organ (MCO) with two counterclockwise coils, and an accessory piece with an expanded, bifurcated distal portion. Mymarothecioides n. gen. is proposed and characterized for species without eyes, with or without accessory chromatic granules; copulatory complex comprising articulated MCO, accessory piece; MCO a broad arcuate tube; an accessory piece with a hooked termination in the distal portion; a dextro or midventral non-sclerotized vagina; an anteromedial projection on the ventral bar. Mymarothecium whittingtoni Kritsky, Boeger & Jégu, 1996 is transferred to Mymarothecioides n. gen. as Mymarothecioides whittingtoni (Kritsky, Boeger & Jégu, 1996) n. comb. 

Lamellodiscus crampus sp. nov. (Monogenea, Diplectanidae), a parasite of Dentex maroccanus (Teleostei, Sparidae) from off Tunisia

2008 ◽  
Vol 53 (3) ◽  
Author(s):  
Lassâd Neifar
Keyword(s):  
New Species ◽  
Mediterranean Sea ◽  
Male Copulatory Organ ◽  
Copulatory Organ ◽  
Distal Portion ◽  
Sensu Stricto ◽  
Congeneric Species ◽  
Gulf Of Gabes ◽  
Gulf Of Gabès

AbstractLamellodiscus crampus sp. nov. (Monogenea, Diplectanidae) is described from the gills of Dentex maroccanus (Valenciennes) collected from the Gulf of Gabès (Tunisia) in the oriental part of Mediterranean Sea. The new species belongs to the “ignoratus” group (sensu Oliver 1987) characterized by a lamellodisc with complete lamellae and a “lyre” shaped male copulatory organ, and the “ignoratus” sensu stricto subgroup, characterized by a haptor with simple lateral dorsal bars, as proposed by Amine and Euzet (2005). Lamellodiscus crampus can be easily distinguished from all the congeneric species of the subgroup “ignoratus” by the presence, in the “lyre” male copulatory organ, of five spines in the distal portion on the axial side of the paired piece.

scholarly journals New species of Urocleidoides (Monogenoidea: Dactylogyridae) from the gills of two species of Anostomidae from the Brazilian Amazon

2020 ◽  
Vol 29 (3) ◽  
Author(s):  
Marcos Sidney Brito Oliveira ◽  
João Flor Santos-Neto ◽  
Marcos Tavares-Dias ◽  
Marcus Vinicius Domingues
Keyword(s):  
New Species ◽  
Male Copulatory Organ ◽  
Accessory Piece ◽  
Brazilian Amazon ◽  
Copulatory Organ ◽  
Distal Portion ◽  
Anchor Point ◽  
Dorsal Anchor ◽  
First Time

Abstract Three species (2 new) of Urocleidoides are described and/or reported from the gills of Schizodon fasciatus and Laemolyta proxima (Anostomidae) from the Jari River in the eastern Brazilian Amazon. Urocleidoides jariensis n. sp. presents a sclerotized, tubular, spiral male copulatory organ (MCO) with one counterclockwise coil, a circular sclerotized tandem brim associated with the base of the MCO; a heavily sclerotized, funnel-shaped vaginal vestibule; and a broadly V-shaped ventral bar with anteromedial constriction and enlarged ends. Urocleidoides ramentacuminatus n. sp. has a sclerotized, tubular, spiral MCO with one counterclockwise coil; an accessory piece with a hook-shaped distal portion; and a dorsal anchor with a short, straight shaft; anchor point with ornamentation as sclerotized shredded filaments. Urocleidoides paradoxus is reported for the first time parasitizing S. fasciatus.

scholarly journals Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil

2018 ◽  
Vol 35 ◽  
pp. 1-19 ◽  
Author(s):  
Geusivam Barbosa Soares ◽  
JoãoJoão Flor dos Santos Neto ◽  
Marcus Vinicius Domingues
Keyword(s):  
Male Copulatory Organ ◽  
Accessory Piece ◽  
Copulatory Organ ◽  
Distal Portion ◽  
Distal Region ◽  
Single Type ◽  
Poorly Differentiated ◽  
Vaginal Canal ◽  
First Time ◽  
One New Species

Four species ofCosmetocleithrum(three new) and one new species ofVancleaveusare described or reported parasitizing the gills of doradid catfishes (Siluriformes) from Xingu River and related tributaries:Cosmetocleithrumphryctophallussp. nov. andCosmetocleithrumbifurcumMendoza-Franco, Mendoza-Palmero & Scholz, 2016 fromHassarorestis;Cosmetocleithrumleandroisp. nov. fromHassargabiru;Cosmetocleithrumakuandubasp. nov. andVancleaveusklassenisp. nov. fromHassarorestisandH.gabiru.Cosmetocleithrumphryctophallussp. nov. differs from its congeners by possessing a male copulatory organ (MCO) with 2 ½ counterclockwise rings, and an accessory piece with an elongate torch-shaped blade.Cosmetocleithrumleandroisp. nov. has a MCO comprising a coil of about 3 ½ rings, a sigmoid accessory piece with a cup-shaped distal portion, a single type of hooks, and anchors with poorly differentiated roots.Cosmetocleithrumakuandubasp. nov. is characterized mainly by having a J-shaped MCO, an elongate accessory piece with sharp distal region, distal portion with a small gutter, and a heavily sclerotized vagina with short “S”-shaped vaginal canal.Vancleaveusklassenisp. nov. differs from the other species of the genus occurring in doradids by possessing anchors with triangular to subtriangular superficial root, developed deep root, and a coiled MCO with 2 ½ counterclockwise rings.Cosmetocleithrumbifurcumwas reported for the first time parasitizing doradids from Brazilian Amazon.

Dactylogyrids (Platyhelminthes, Monogenoidea) from the gills of Hoplias malabaricus (Characiformes: Erythrinidae) from coastal rivers of the Oriental Amazon Basin: species of Urocleidoides and Constrictoanchoratus n. gen.

2017 ◽  
Vol 92 (3) ◽  
pp. 353-368 ◽  
Author(s):  
K.D.C. Ferreira ◽  
A.R.O. Rodrigues ◽  
J.-M. Cunha ◽  
M.V. Domingues
Keyword(s):  
New Species ◽  
Amazon Basin ◽  
Copulatory Organ ◽  
Ventral Anchor ◽  
Mato Grosso ◽  
Hoplias Malabaricus ◽  
The North ◽  
Coastal Rivers ◽  
Upper Paraná River Floodplain ◽  
Host Parasite

AbstractFive species of Urocleidoides (one new) and two new species of Constrictoanchoratus n. gen. are described in this study. All were collected from the gills of Hoplias malabaricus (Characiformes: Erythrinidae) captured in six localities of coastal rivers of the north-eastern sector the State of Pará (Oriental Amazon): Urocleidoides brasiliensis Rosim, Mendoza-Franco & Luque, 2011; Urocleidoides bulbophallus n. sp.; Urocleidoides cuiabai Rosim, Mendoza-Franco & Luque, 2011; Urocleidoides eremitus Kritsky, Thatcher & Boeger, 1986; Urocleidoides malabaricusi Rosim, Mendoza-Franco & Luque, 2011; Constrictoanchoratus lemmyi n. gen. n. sp.; and Constrictoanchoratus ptilonophallus n. gen. n. sp. This is the first reported occurrence of the four previously described species of Urocleidoides parasitizing H. malabaricus from streams in the Oriental Amazon Basin. The analysis of voucher specimens of U. eremitus parasitizing the gills of H. malabaricus from the Upper Paraná River floodplain in the limits of States of Paraná and Mato Grosso do Sul, Brazil, indicates that these specimens are members of a new species of Urocleidoides, described here as Urocleidoides paranae n. sp. Constrictoanchoratus n. gen. is proposed for the species with a male copulatory organ sclerotized, coiled, clockwise; ventral anchor with elongate superficial root, inconspicuous deep root; dorsal anchor with inconspicuous roots, and a constriction at the intersection between the shaft and the point. The host–parasite diversity scenario and host specificity of the species of Constrictoanchoratus n. gen. and Urocleidoides from the gills of H. malabaricus are also discussed in this study.

scholarly journals The endogean beetle fauna of the Marganai-Oridda-Valle del Leni area (SW Sardinia), with description of seven new species of Staphylinidae Leptotyphlinae (Coleoptera)

Zootaxa ◽  
2009 ◽  
Vol 2318 (1) ◽  
pp. 317-338 ◽  
Author(s):  
LUCA FANCELLO ◽  
CARLES HERNANDO ◽  
PIERO LEO
Keyword(s):  
New Species ◽  
Male Copulatory Organ ◽  
Copulatory Organ ◽  
Three New Species ◽  
Female Genital

Twenty-six species of endogean beetles are recorded from the Marganai-Oridda-Valle del Leni area, belonging to six different families: Carabidae (Typhloreicheia holdhausi Magrini, Fancello & Casale, 2006, T. leoi pilosa Magrini & Fancello, 2007, T. tanit Leo, Magrini & Fancello, 2005), Leiodidae [Bathysciola damryi (Abeille de Perrin, 1881)], Staphylinidae [Eudesis aglena Reitter, 1882, E. minima Binaghi, 1948, Mayetia sp., Trimium amplipenne Reitter, 1908, Tychobythinus dentimanus (Reitter, 1884), Tychus sp., Pselaphostomus sp., Phloeocharis ichnusae Dodero, 1900, Octavius raymondi Saulcy, 1878, O. sardous Coiffait, 1965, four new species of Entomoculia, three new species of Leptotyphlus], Zopheridae (Langelandia reitteri Belon, 1882, Lyreus septemstriatus Fancello & Leo, 1991), Curculionidae (Torneuma sp.) and Raymondionymidae [Alaocyba carinulata Perris, 1869, Raymondiellus sardous sardous (Perris, 1869)]. One species (Langelandia reitteri) is W-Mediterranan, one is a Sardo-Corsican endemic (Tychobythinus dentimanus), the remaining 24 species are all Sardinian endemics and 16 of these are strictly localized within the study area or restricted to SW Sardinia. The following species of Staphylinidae Leptotyphlinae are described: Entomoculia villascemae sp. nov., E. carbonaria sp. nov., E. shardana sp. nov., E. melonii sp. nov., Leptotyphlus nardii sp. nov., L. minator sp. nov. and L. villacidrinus sp. nov.; all are easily distinguishable from their congeners by the structure of the male copulatory organ and female genital armature. The morphology of the copulatory organ in the newly described Leptotyphlus species indicates that the classical subgeneric categories used in Leptotyphlus are probably based on characters not reflecting a natural subdivision of the genus.

Calydiscoides limae sp. nov. (Monogenea, Diplectanidae) from Pentapodus aureofasciatus (Perciformes, Nemipteridae) off New Caledonia

2009 ◽  
Vol 54 (1) ◽  
Author(s):  
Jean-Lou Justine ◽  
Pierpaolo Brena
Keyword(s):  
New Species ◽  
Male Copulatory Organ ◽  
New Caledonia ◽  
South Pacific ◽  
Copulatory Organ ◽  
Barrier Reef ◽  
Thin Tube

AbstractCalydiscoides limae sp. nov. is described from the nemipterid Pentapodus aureofasciatus Russell, 2001 caught along the barrier reef off New Caledonia, South Pacific. The new species is characterised by its male copulatory organ, with a distal blade and a lateral spur, and its female sclerotised organ, with a sphere and a thin tube. Its lamellodiscs always have 7 concentric lamellae, with the 3 internal lamellae complete and the 4 peripheral lamellae progressively less and less complete; measurements of the angles occupied by the lamellae in numerous specimens showed that the lamellodisc structure shows little variation among individuals.

scholarly journals Dactylogyrids (Platyhelminthes: Monogenoidea) Infecting the Gill Lamellae of Flatheads (Scorpaeniformes: Platycephalidae), with Proposal of Platycephalotrema n. gen. and Descriptions of New Species from Australia and Japan

Diversity ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 132
Author(s):  
Delane Kritsky ◽  
Masato Nitta
Keyword(s):  
New Species ◽  
Type Species ◽  
Male Copulatory Organ ◽  
Accessory Piece ◽  
Copulatory Organ ◽  
Museum Specimens ◽  
Type Host ◽  
Gill Lamellae ◽  
Inegocia Japonica

Platycephalotrema n. gen. (Dactylogyridae) is proposed for four new species and 5 previously described species parasitizing the gills of flatheads (Scorpaeniformes: Platycephalidae) as follows: Platycephalotrema ogawai n. sp. (type species) from Platycephalus sp. 1 (type host) and Platycephalus sp. 2, both of Nakabo & Kai (2013) (locally known as “Yoshino-gochi” and “Ma-gochi,” respectively) (Japan); Platycephalotrema austrinum n. sp. from Platycephalus endrachtensis Quoy & Gaimard (type host) and Platycephalus sp. (Australia); Platycephalotrema bassensis (Hughes, 1928) n. comb. from Platycephalus bassensis Cuvier (Australia); Platycephalotrema koppa n. sp. from Platycephalus fuscus Cuvier (Australia); Platycephalotrema macassarensis (Yamaguti, 1963) n. comb. from Platycephalus indicus (Linnaeus) (China, Macassar); Platycephalotrema mastix n. sp. from P. fuscus and P. endrachtensis (Australia); Platycephalotrema platycephali (Yin & Sproston, 1948) n. comb. from P. indicus (China) and P. fuscus (Australia); Platycephalotrema sinensis (Yamaguti, 1963) n. comb. from Cociella punctata (Cuvier) (China); Platycephalotrema thysanophrydis (Yamaguti, 1937) n. comb. from Inegocia japonica (Cuvier), Inegocia ochiaii Imamura, and Cociella crocodilus (Cuvier) (Japan, China). Other species requiring further study but potentially members of Platycephalotrema include Ancyrocephalus vesiculosus Murray, 1931, Haliotrema indicum Tripathi, 1957, Haliotrema swatowensis Yao, Wang, Xia, & Chen, 1998, and Haliotrema pteroisi Paperna, 1972. The primary features differentiating Platycephalotrema include species having: (1) tandem gonads (testis postgermarial); (2) two prostatic reservoirs, each emptying independently into the base of the male copulatory organ; (3) a dextral vaginal pore and large vaginal vestibule; (4) dorsal and ventral pairs of morphologically similar anchors; (5) a ventral bar with spatulate ends; (6) a dorsal bar with bifurcated ends, and (7) absence of an accessory piece. The new species are described, and P. thysanophrydis is redescribed based on newly collected and museum specimens.

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