scholarly journals A new order of fishes as hosts of blood flukes (Aporocotylidae); description of a new genus and three new species infecting squirrelfishes (Holocentriformes, Holocentridae) on the Great Barrier Reef

Parasite ◽  
2021 ◽  
Vol 28 ◽  
pp. 76
Author(s):  
Scott C. Cutmore ◽  
Thomas H. Cribb
Keyword(s):  
New Species ◽  
Great Barrier Reef ◽  
Genital Pore ◽  
New Genus ◽  
Posterior Extremity ◽  
Barrier Reef ◽  
Blood Flukes ◽  
Lizard Island ◽  
Three New Species ◽  
Male Genital

A new genus and three new species of blood flukes (Aporocotylidae) are described from squirrelfishes (Holocentridae) from the Great Barrier Reef. Holocentricola rufus n. gen., n. sp. is described from Sargocentron rubrum (Forsskål), from off Heron Island, southern Great Barrier Reef, and Lizard Island, northern Great Barrier Reef, Australia. Holocentricola exilis n. sp. and Holocentricola coronatus n. sp. are described from off Lizard Island, H. exilis from Neoniphon sammara (Forsskål) and H. coronatus from Sargocentron diadema (Lacepède). Species of the new genus are distinct from those of all other aporocotylid genera in having a retort-shaped cirrus-sac with a distinct thickening at a marginal male genital pore. The new genus is further distinct in the combination of a lanceolate body, X-shaped caeca, posterior caeca that are longer than anterior caeca, a single, post-caecal testis that is not deeply lobed, a post-caecal, post-testis ovary that is not distinctly bi-lobed, and a post-ovarian uterus. The three new species can be morphologically delineated based on the size and row structure of the marginal spines, as well by total length, oesophagus and caecal lengths, and the position of the male genital pore, testes and ovary relative to the posterior extremity. The three species of Holocentricola are genetically distinct from each other based on cox1 mtDNA and ITS2 rDNA data, and in phylogenetic analyses of 28S rDNA form a well-supported clade sister to species of Neoparacardicola Yamaguti, 1970. This is the first report of aporocotylids from fishes of the family Holocentridae and the order Holocentriformes.

A new species of Stephanostomum Looss, 1899 (Digenea, Acanthocolpidae) with a bizarre oral sucker: S. adlardi sp. nov. from the common coral trout Plectropomus leopardus (Lacepède, 1802) (Perciformes, Serranidae) from Lizard Island, Great Barrier Reef

2007 ◽  
Vol 52 (3) ◽  
Author(s):  
Rodney Bray ◽  
Thomas Cribb ◽  
Andrea Waeschenbach ◽  
D. Littlewood
Keyword(s):  
New Species ◽  
Great Barrier Reef ◽  
Oral Sucker ◽  
Ribosomal Rna ◽  
Barrier Reef ◽  
Coral Trout ◽  
Lizard Island ◽  
The Common ◽  
Plectropomus Leopardus ◽  
A New Species

AbstractA new species of Acanthocolpidae, Stephanostomum adlardi is described from the serranid Plectropomus leopardus from Lizard Island in the northern Great Barrier Reef. It differs from all previously described acanthocolpids in the structure of the oral sucker which is extended into dorsal and ventral lobes each bearing a row of spines. A phylogenetic tree estimated from combined nuclear small and partial large ribosomal RNA gene sequences shows that, despite the unusual oral sucker structure, the species is a true member of the genus Stephanostomum. The molecular results also suggest that Monostephanostomum nolani is derived from within Stephanostomum.

Exploiting mimicry: Prosorhynchoides thomasi n. sp. (Digenea: Bucephalidae) from the fang blenny genus Plagiotremus (Bleeker) (Blenniidae) from off Lizard Island on the Great Barrier Reef, Australia

Zootaxa ◽  
2007 ◽  
Vol 1514 (1) ◽  
pp. 61-64 ◽  
Author(s):  
ASHLEY ROBERTS-THOMSON ◽  
NATHAN J. BOTT
Keyword(s):  
New Species ◽  
Great Barrier Reef ◽  
Barrier Reef ◽  
First Report ◽  
Lizard Island ◽  
A New Species

Prosorhynchoides thomasi n. sp. (Digenea: Bucephalidae) is described from the intestine of the fang blennies, Plagiotremus tapeinosoma and P. rhinorhynchos (Blenniidae: Nemophini) from off Lizard Island, Great Barrier Reef, Australia.  The new species is differentiated from other species of Prosorhynchoides Dollfus, 1929 that also have testes which are symmetrical or nearly symmetrical by the shape and direction of the caecum and the position of the ovary relative to the caecum.  This is the first report of a new species, but the second report of adult bucephalids from Plagiotremus spp.  Prosorhynchoides thomasi n. sp. likely exploits the habit of Plagiotremus spp. of mimicking cleaner wrasse (Labridae) behaviour and micropredation on ‘client’ fish.  We have not encountered this species from other blennies or from other teleost families known to be infected with bucephalids from the Great Barrier Reef

scholarly journals Ischyroceridae

Zootaxa ◽  
2009 ◽  
Vol 2260 (1) ◽  
pp. 463-486 ◽  
Author(s):  
JEAN JUST
Keyword(s):  
New Species ◽  
Great Barrier Reef ◽  
Mediterranean Sea ◽  
Barrier Reef ◽  
Single Specimen ◽  
Lizard Island ◽  
A New Species

Eight species in the Ischyroceridae are reported from Lizard Island, northern Great Barrier Reef, Australia. Five species are new to science: Coxischyrocerus rhombocoxus gen. et sp. nov., Tropischyrocerus pugilus gen. et sp. nov., Cerapus nudus sp. nov., Ericthonius parabrasiliensis sp. nov., and Ericthonius tropicalis sp. nov. Ericthonius pugnax Dana is new to the Great Barrier Reef. Ambicholestes magellani (Just) and Cerapus volucola Lowry & Berents have been recorded previously from the area. A single specimen, possibly a new species, is reported as Ericthonius sp. Ischyrocerus inexpectatus Ruffo (Mediterranean Sea) is transferred to Coxischyrocerus. Ischyrocerus socia (Myers) from Bora Bora is transferred to Tropischyrocerus.

scholarly journals New and little-known gnathiid isopod crustaceans (Cymothoida) from the northern Great Barrier Reef and the Coral Sea

Zootaxa ◽  
2012 ◽  
Vol 3380 (1) ◽  
pp. 1 ◽  
Author(s):  
JÖRUNDUR SVAVARSSON ◽  
NIEL L. BRUCE
Keyword(s):  
New Species ◽  
Great Barrier Reef ◽  
Barrier Reef ◽  
Island Region ◽  
Coral Sea ◽  
Lizard Island ◽  
Island Group ◽  
Gnathiid Isopod

Ten species of Gnathiidae (Crustacea, Isopoda, Cymothoida) including six new species, are reported from Lizard Islandand nearby reefs, northern Great Barrier Reef and reefs of the Coral Sea (Chesterfield Reefs, Mellish Reef and MarionReef): Gnathia wistari sp. nov. (Lizard Island region and Capricorn Group, southern Great Barrier Reef), Gnathia coral-maris sp. nov. (Mellish Reef), Gnathia varanus sp. nov. (Lizard Island group), Gnathia marionis sp. nov. (Marion Reef),Gnathia hamletgast sp. nov. (Chesterfield Reefs) and Elaphognathia australis sp. nov. (Chesterfield Reefs). New locali-ties are reported for four other species: Gnathia aureamaculosa Ferreira and Smit, 2009 and Gnathia masca Farquharsonand Smit, 2012 from Lizard Island and nearby reefs; Gnathia falcipenis Holdich and Harrison, 1980 and Gnathia variobranchia Holdich and Harrison, 1980 from Lizard Island, Wistari Reef, Heron Island and Chesterfields Reefs.

Two new species of alcyonacean-associated shrimp genus Alcyonohippolyte Marin, Okuno & Chan, 2010 (Crustacea: Decapoda: Hippolytidae) from the Great Barrier Reef of Australia

Zootaxa ◽  
2011 ◽  
Vol 3123 (1) ◽  
pp. 49 ◽  
Author(s):  
IVAN MARIN
Keyword(s):  
New Species ◽  
Great Barrier Reef ◽  
Soft Coral ◽  
Barrier Reef ◽  
Lizard Island ◽  
Two New Species ◽  
Organ Pipe ◽  
Antennular Peduncle

Two new species of symbiotic hippolytid shrimps of the genus Alcyonohippolyte Marin, Okuno & Chan, 2010 are described from Lizard Island, the Great Barrier Reef of Australia. Alcyonohippolyte tenuicarpus sp. nov. is associated with xeniid soft coral of the genus Heteroxenia Kolliker, 1874 and differs from the congeners by a long rostrum greatly exceeding antennular peduncle and slender carpal segments of pereiopod II. Alcyonohippolyte tubiporae sp. nov. is associated with organ pipe coral of the genus Tubipora Linnaeus, 1758, possibly T. musica Linnaeus, 1758 (Alcyonacea: Tubiporidae), and differs from the congeners by equal distal and proximal carpal segments of pereiopod II. Both species can be clearly separated from the congeners ecologically and by coloration.

An aberrant nematode, Baldwinema n. gen. (Nematoda: Panagrolaimomorpha: Panagrolaimidae), from Iran with description of three new species

Nematology ◽  
2015 ◽  
Vol 17 (8) ◽  
pp. 877-896 ◽  
Author(s):  
Mohammad Reza Atighi ◽  
Ebrahim Pourjam ◽  
Wim Bert ◽  
Majid Pedram ◽  
Razieh Ghaemi ◽  
...  
Keyword(s):  
New Species ◽  
New Genus ◽  
Tail Length ◽  
Thick Wall ◽  
Thin Wall ◽  
Pharyngeal Bulb ◽  
Lateral Field ◽  
Female Tail ◽  
Three New Species ◽  
Male Genital

A new genus of Panagrolaimidae, together with three new species, is proposed based on morphological, morphometric and molecular studies. Baldwinema n. gen. is unique in the Tylenchina by a combination of the following characters: having valvular median bulb, no valve in terminal pharyngeal bulb and absence of stylet. It is further characterised by cylindrical body, thin and finely annulated cuticle, lateral field with two lines (forming a single plain band), fused lips, small longitudinal amphidial openings located on lateral lips, lip region without labial probolae, with six inner and six outer labial and four cephalic papillae (as seen using SEM images), stoma aberrant, cheilostom and gymnostom of equal length, cheilostom with thin wall, gymnostom with clear and thick wall, and stegostom beginning with a tubular thin wall and ending with a thicker wall. Baldwinema ilamense n. gen., n. sp., the type, is characterised by its short post-vulval uterine sac of 7.7 (6.0-9.0) μm long, female tail length of 147 (120-175) μm, shape of gubernaculum, and arrangement of male genital papillae; B. ardabilense n. gen., n. sp. by its short post-vulval uterine sac of 11.5 (9.0-15.0) μm, female tail length of 150 (136-169) μm, shape of gubernaculum, and arrangement of male genital papillae; and B. golestanense n. gen., n. sp. by its long post-vulval uterine sac of 16 (13-21) μm, female tail length of 200 (174-220) μm, shape of gubernaculum, and arrangement of male genital papillae. Phylogenetic analyses based on sequences of the small subunit (SSU) ribosomal RNA gene showed that the new genus is nested within the Panagrolaimidae. However, LSU data did not demonstrate monophyly of the Panagrolaimidae.

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