Fairfaxia-Lethrini, Gen Et Sp-Nov (Digenea, Opecoelidae), From Lethrinus-Chrysostomus Richardson From the Southern Great-Barrier-Reef

1989 ◽  
Vol 37 (1) ◽  
pp. 67 ◽  
Author(s):  
TH Cribb
Keyword(s):  
Great Barrier Reef ◽  
Ventral Sucker ◽  
Genital Pore ◽  
New Genus ◽  
Barrier Reef ◽  
Excretory Bladder

Fairfaxia lethrini, gen. et sp. nov., is described from the intestine of Lethrinus chrysostomus from the southern Great Barrier Reef. The new genus is characterised by its large ventral sucker which interrupts the vitelline fields, small cirrus pouch and median genital pore, short excretory bladder and small post-testicular field into which neither the vitelline follicles nor the caeca extend.

Paragymnophallus odhneri gen. n., sp. n. (Trematoda: Gymnophallidae) for Gymnophallus somateriae sensu Odhner (1900, 1905)

1973 ◽  
Vol 51 (8) ◽  
pp. 807-810 ◽  
Author(s):  
Hilda Lei Ching
Keyword(s):  
New Species ◽  
Seminal Vesicle ◽  
Ventral Sucker ◽  
Genital Pore ◽  
Egg Size ◽  
New Genus ◽  
The Body ◽  
Intestinal Bifurcation ◽  
Somateria Spectabilis ◽  
Excretory Bladder

Odhner's specimens of Gymnophallus somateriae were studied and are assigned to a new genus and new species because of the wide genital pore located between the ventral sucker and the intestinal bifurcation. Paragymnophallus odhneri also differs from G. somateriae as described by Levinsen (1881) and Ching (1973), in the body spination, 2:1 sucker ratio, nature of the vitellaria, and the egg size. G. somateriae reported by Ryzhikov et al. (1966) from Somateria spectabilis in Chutkova is considered to be P. odhneri because of the checkerboard arrangement of spines, 2:1 sucker ratio, and small eggs. Pending reexamination of the genital pore, G. bilis Brinkmann, 1956 and G. minor Ryzhikov, 1962 could belong to Paragymnophallus. The new genus, most similar to Gymnophallus in the bipartite seminal vesicle, follicular vitelline glands, and Y-shaped excretory bladder, differs in the location and size of the genital pore, larger sucker ratio, and large pharynx. The wide genital pore some distance from the ventral sucker and the large oral sucker are like that of Parvatrema but Parvatrema has a club-shaped seminal vesicle, minute body, compact vitellaria, and V-shaped excretory bladder. A key to the genera of Gymnophallidae is included.

Description of Gymnophallus somateriae (Levinsen, 1881) from Macoma inconspicua and diving ducks from Vancouver, Canada

1973 ◽  
Vol 51 (8) ◽  
pp. 801-806 ◽  
Author(s):  
Hilda Lei Ching
Keyword(s):  
New Species ◽  
Seminal Vesicle ◽  
Ventral Sucker ◽  
Genital Pore ◽  
Body Shape ◽  
New Genus ◽  
Distal Portion ◽  
The Body ◽  
Diving Ducks ◽  
Excretory Bladder

In the same clam host, the metacercaria of Gymnophallus somateriae differs from those of Lacunovermis conspicuus and Meiogymnophallus multigemmulus in the body shape and spination; small, irregular vitellaria; and lyre-shaped excretory bladder. The adult from diving ducks differs from Levinsen's description in the shorter posterior range of the uterus and shorter length of the eggs. The fusiform body, sucker ratio, location of the ventral sucker in the posterior third of the body, and bipartite seminal vesicle with large distal portion and smaller proximal portion are characteristic of the species. G. somateriae of Odhner (1900, 1905) belongs to a new genus and new species because of the size and location of the genital pore and will be described in the next paper. G. gibberosus Loos-Frank, 1971 is closely related to G. somateriae but has a ventral sucker in the middle third of the body, a uterus only in the anterior half of the body, and a proximal seminal vesicle smaller in diameter than the ventral sucker.

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.

Thryssatrema hanumantharaoi n. gen., n. sp. (Digenea: Fellodistomidae) from the longjaw thryssa, Thryssa setirostris (Clupeiformes: Engraulidae), of the Visakhapatnam coast, Bay of Bengal

Zootaxa ◽  
2012 ◽  
Vol 3551 (1) ◽  
pp. 59 ◽  
Author(s):  
B. SAILAJA ◽  
ROKKAM MADHAVI
Keyword(s):  
Seminal Vesicle ◽  
Ventral Sucker ◽  
Bay Of Bengal ◽  
Genital Pore ◽  
Body Shape ◽  
New Genus ◽  
The Body ◽  
Posterior Half ◽  
Excretory Bladder ◽  
Visakhapatnam Coast

Thryssatrema hanumantharaoi n. sp., representing a new genus of fellodistomid digenean, is described from a clupeoidfish, the longjaw thryssa, Thryssa setirostris, collected from the coast of Visakhapatnam, Bay of Bengal. The new genusis characterized by possessing a combination of the following features: An elongate body; poorly developed suckers; twooval, symmetrical testes situated in the posterior half of the hindbody; a cirrus sac that extends posterior to the ventralsucker; a bipartite seminal vesicle; a median genital pore situated immediately anterior to the ventral sucker; a lobed,pretesticular ovary; uterine coils that fill the entire hindbody; small eggs, elliptical vitelline follicles forming two zonesanterolateral to the ovary; and a V-shaped excretory bladder. The new genus shows affinities to Prudhoeus and Elopsiumbut differs from the former in the body shape (elliptical versus oval), and by having poorly developed suckers, moreposteriorly located gonads and elliptical vitelline follicles arranged in two lateral zones in front of ovary. It differs fromElopsium mainly in the body shape (elliptical versus rounded) and distribution of vitelline follicles and in the V-shaped excretory bladder.

A revision of the subfamily Haplorchinae Looss, 1899 (Trematoda: Heterophyidae): I. The Haplorchis group

Parasitology ◽  
1964 ◽  
Vol 54 (4) ◽  
pp. 601-676 ◽  
Author(s):  
J. C. Pearson
Keyword(s):  
Life History ◽  
Ventral Sucker ◽  
Genital Pore ◽  
History Data ◽  
Life History Data ◽  
The Family ◽  
Excretory Bladder

Earlier schemes of classification of the family Heterophyidae have been based in large part on such features as shape of body, presence of oral spines, number and position of testes, and distribution of vitellaria (Witenberg, 1929; Ciurea, 1933; Mueller & Van Cleave, 1932). Price (1940a) was the first to make extensive use of features of the ventrogenital complex (ventral sucker, gonotyl, genital pore, terminal male duct) and excretory bladder, and produced the first reasonable classification of both the family Heterophyidae and the superfamily Opisthorchioidea. In despite of the obvious significance of the rationale of Price's approach, later authors (Morozov, 1952, 1955; Yamaguti, 1958) have largely ignored the ventrogenital complex and recently discovered life-history data, and have used much the same sorts of features as earlier authors.

Gorgocephalus yaaji n. sp. (Digenea: Gorgocephalidae) from the brassy chub Kyphosus vaigiensis (Perciformes: Kyphosidae) off Lizard Island, northern Great Barrier Reef and further records of G . kyphosi

Zootaxa ◽  
2005 ◽  
Vol 1068 (1) ◽  
pp. 29
Author(s):  
RODNEY A. BRAY ◽  
THOMAS H. CRIBB
Keyword(s):  
New Species ◽  
Great Barrier Reef ◽  
Ventral Sucker ◽  
Body Length ◽  
Body Shape ◽  
French Polynesia ◽  
Barrier Reef ◽  
Lizard Island ◽  
Kyphosus Vaigiensis ◽  
A New Species

A new species Gorgocephalus yaaji is described in the intestine of Kyphosus vaigiensis from the waters off Lizard Island, Queensland, Australia. It differs from Gorgocephalus kyphosi by its broader body shape, the extension of the vitellarium into the forebody, a relatively longer forebody, cirrus-sac and post-caecal region, and a shorter distance between the ventral sucker and the ovary. It differs from Gorgocephalus manteri in its size, its tandem testes, and the ratios of width, ventral sucker to ovary distance and ovary to testes distance to body-length. Gorgocephalus kyphosi is reported in the pyloric caeca of K. vaigiensis from waters off Moorea, French Polynesia, and Lizard Island, Queensland, Australia. Measurements and an illustration are given of the latter species.

Sign in / Sign up

Export Citation Format

Share Document