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.

Allopodocotyle tunisiensis sp. nov. (Digenea, Opecoelidae), a parasite of Solea aegyptiaca (Teleostei, Soleidae) off Tunisia

2009 ◽  
Vol 54 (4) ◽  
Author(s):  
Hela Derbel ◽  
Lassad Neifar
Keyword(s):  
New Species ◽  
Mediterranean Sea ◽  
Seminal Vesicle ◽  
Ventral Sucker ◽  
Anterior Margin ◽  
Gulf Of Gabes ◽  
Gulf Of Gabès ◽  
The Status ◽  
The Mediterranean

AbstractAllopodocotyle tunisiensis sp. nov. is described from the intestine of Solea aegyptiaca Chabanaud collected from the Gulf of Gabès in the Mediterranean Sea off Tunisia. The new species belongs to the group C of Allopodocotyle Pritchard, 1966 species (sensu Bray 1987). It differs from its congeners in this group by the shape of the seminal vesicle and the anterior extend of the vitellarium which varies between just posterior to the ventral sucker and anterior margin. A key to the Allopodocotyle species of group C is presented. The status of the genera Allopodocotyle and Macvicaria (Gibson and Bray 1982) are briefly discussed.

Hypocreadium caputvadum sp. nov. (Digenea, Lepocreadiidae), an intestinal parasite of the grey triggerfish, Balistes capriscus (Teleostei, Balistidae) from the Gulf of Gabès, Mediterranean Sea

2011 ◽  
Vol 56 (3) ◽  
Author(s):  
Hichem Kacem ◽  
Hela Derbel ◽  
Lassâd Neifar
Keyword(s):  
New Species ◽  
Mediterranean Sea ◽  
Intestinal Parasite ◽  
Gulf Of Gabes ◽  
Gulf Of Gabès ◽  
Balistes Capriscus ◽  
Southern Mediterranean

AbstractHypocreadium caputvadum sp. nov. (Digenea, Lepocreadiidae) is described from the intestine of Balistes capriscus Gmelin collected from the Gulf of Gabès (Tunisia) in the southern Mediterranean Sea. This new species can be distinguished by a combination of characteristics shared by no other described species of Hypocreadium Ozaki, 1936. These characteristics include the presence of a distinct anterior notch, the follicular vitellarium confluent in the forebody, the presence of a muscular sphincter at the level of the anterior third of the metraterm and the size and the position of the cirrus-sac.

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.

scholarly journals Dactylogyrids (Monogenea) parasitic on cichlids from northern Brazil, with description of two new species of Sciadicleithrum and new host and geographical records

2016 ◽  
Vol 61 (1) ◽  
Author(s):  
Fabiano Paschoal ◽  
Tomáš Scholz ◽  
Marcos Tavares-Dias ◽  
José L. Luque
Keyword(s):  
New Species ◽  
Male Copulatory Organ ◽  
Accessory Piece ◽  
Copulatory Organ ◽  
Congeneric Species ◽  
New Host ◽  
Cichlid Fishes ◽  
Two New Species ◽  
Northern Brazil

AbstractTwo new species of Sciadicleithrum Kritsky, Thatcher and Boeger, 1989 are described from two cichlids from the Araguarí River, State of Amapá, northern Brazil. Sciadicleithrum edgari n. sp. from Satanoperca jurupari (Heckel, 1840) differs from all congeneric species in the morphology (hook-shaped, with middle process and distally bifurcate) of the accessory piece of the male copulatory organ (MCO). Sciadiclethrum araguariensis n. sp. from Crenicichla labrina (Spix and Agassiz, 1831) can be distinguished from all other species by a Y-shaped accessory piece of MCO. In addition to the description of two new species, new host and geographical records of six dactylogyrid monogeneans from cichlid fishes are presented.

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. 

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 A new species of Demidospermus (Platyhelminthes, Monogenea, Ancyrocephalidae) from the catfish Parapimelodus valenciennis in Samborombón Bay, Argentina

2011 ◽  
Vol 56 (2) ◽  
Author(s):  
Paula Marcotegui ◽  
Sergio Martorelli
Keyword(s):  
New Species ◽  
Male Copulatory Organ ◽  
Accessory Piece ◽  
Copulatory Organ ◽  
Congeneric Species ◽  
Samborombón Bay ◽  
A New Species ◽  
Samborombon Bay

AbstractDemidospermus annulus sp. nov. (Platyhelminthes, Monogenea, Ancyrocephalidae) is described from the gills of the catfish Parapimelodus valenciennis Lütken collected in Samborombón Bay, Argentina. The new species differs from all congeneric species mainly by the structure of the accessory piece of the male copulatory organ, the sclerotized ring-shaped vaginal aperture and the dorsal bar articulation.

Dactylogyrids (Monogenea) parasitic on marine fish from Peru including the description of a new species of Haliotrema Johnston & Tiegs, 1922 and two new species of Parancylodiscoides Caballero & C. & Bravo-Hollis, 1961

Zootaxa ◽  
2017 ◽  
Vol 4311 (1) ◽  
pp. 111 ◽  
Author(s):  
CELSO L. CRUCES ◽  
JHON D. CHERO ◽  
GLORIA SÁEZ ◽  
JOSÉ L. LUQUE
Keyword(s):  
New Species ◽  
Marine Fish ◽  
Male Copulatory Organ ◽  
Accessory Piece ◽  
Copulatory Organ ◽  
The Other ◽  
Congeneric Species ◽  
Two New Species ◽  
Parasitological Survey ◽  
A New Species

A parasitological survey searching dactylogyrids (Monogenea) infesting the gills of Peruvian marine fish was carried out during the 2015–2016 period. The gills of three teleosts species, 12 Hemanthias peruanus (Steindachner), 16 Hemanthias signifer (Garman) (Serranidae) and 4 Scarus perrico Jordan & Gilbert (Scaridae), were sampled. A new species of Haliotrema and two new species of Parancylodiscoides were described: Haliotrema sanchezae n. sp. from S. perrico, Parancylodiscoides peruensis n. sp. from H. peruanus and P. signiferi n. sp. from H. signifer. Haliotrema sanchezae n. sp. differs from other congeneric species by its male copulatory organ (tapered-shaped cirrus tube, with cylinder-shaped base and a membranous, blanket-shaped accessory piece), and the morphology of its transverse bars (X-shaped ventral bar and mask-shaped dorsal bar). Parancylodiscoides peruensis n. sp. differs from all other members of Parancylodiscoides by having a tapered-shaped copulatory organ with curved distal tip and a bell-shaped base having two lateral knobs and short arm. Parancylodiscoides signiferi n. sp. can be differentiated from its congeners by its male copulatory organ, which has tubular-shaped with a loop at distal end and a slightly expanded base having a short and broad arm. Present findings are added to the other 3 marine dactylogyrid previously reported from Peru. 

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.

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