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.

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.

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.

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.

scholarly journals A New Species of Cloacitrema (Digenea, Philophthalmidae) from Greater Flamingo (Phoenicopterus roseus) with Remarks on the Genera Cloacitrema and Pygorchis

2013 ◽  
Vol 47 (1) ◽  
pp. 77-81 ◽  
Author(s):  
R. K. Schuster
Keyword(s):  
New Species ◽  
Seminal Vesicle ◽  
Ventral Sucker ◽  
Body Shape ◽  
Equatorial Position ◽  
Oblique Position ◽  
Greater Flamingos ◽  
A New Species

Abstract Cloacitrema dubaiensis Schuster, sp. n. is described from four adult specimens found in the cloaca of greater flamingos in Dubai, UAE. It is the first Cloacitrema species found in the Afrotropic ecozone. The new species is medium‑sized and slim, with the ventral sucker in equatorial position and the uterus that extends laterally to intestinal caeca. It has oval, unlobed, touching each other testes in parallel to slightly oblique position. C. dubaiensis resembles C. narrabeenensis but differs in body shape, position of acetabulum, size of the seminal vesicle and number of vitelline follicles and their extension lateral to caeca.

scholarly journals A new species of Petasiger (Digenea, Echinostomatidae) parasitizing Podiceps major and Rollandia rolland (Aves, Podicipedidae) from Buenos Aires Province, Argentina

2010 ◽  
Vol 55 (3) ◽  
Author(s):  
Lía Lunaschi ◽  
Fabiana Drago
Keyword(s):  
New Species ◽  
Ventral Sucker ◽  
Excretory Pore ◽  
Genital Pore ◽  
Buenos Aires ◽  
First Record ◽  
The Body ◽  
Buenos Aires Province ◽  
Neotropical Species ◽  
A New Species

AbstractPetasiger argentinensis sp. nov. is described from material found in the intestine of the Great Grebe, Podiceps major (Boddaert) and the White-tufted Grebe, Rollandia rolland Quoy et Gaimard (Podicipediformes, Podicipedidae), from Argentina. The new species is characterized by the head collar armed with 19 spines and by the testes arranged in tandem. These characters are shared with only two Neotropical species of the genus, P. novemdecim Lutz, 1928 and P. combesi Zamparo, Overstreet et Brooks, 2005. Petasiger novemdecim differs from the new species in having a larger body, longer collar spines, larger eggs, a cirrus-sac of similar size to the ventral sucker and almost entirely anterior to it, and vitelline fields confluent ventrally posterior to the ventral sucker. P. combesi differs from the new species in most metrical characters, the shape of the body (antero-posteriorly elongate) and the location of the genital pore (dextral) and the excretory pore (dorsal). This is the first record of a member of the genus Petasiger parasitizing birds from Argentina.

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.

Xenosellidae, a new family of Janiroidea (Asellota: Isopoda:  Crustacea), for Xenosella coxospinosa gen. nov., sp. nov.,  from the marine bathyal of eastern Australia

Zootaxa ◽  
2005 ◽  
Vol 1085 (1) ◽  
pp. 21 ◽  
Author(s):  
JEAN JUST
Keyword(s):  
New Species ◽  
Body Shape ◽  
New Genus ◽  
New Genus And Species ◽  
South Eastern ◽  
Incertae Sedis ◽  
New Family ◽  
Eastern Australia ◽  
Similar Body ◽  
South Eastern Australia

A new genus and species of janiroidean Asellota, Xenosella coxospinosa, is described from the mid-bathyal slope off the coast of south-eastern Australia. Following a comparison of the new species to several families of broadly similar body shape, with emphasis on monotypic Pleurocopidae, a new family, Xenosellidae, is proposed for the new species. In the course of comparing relevant taxa, the current placements of Prethura Kensley in the Santiidae and Salvatiella Müller in the Munnidae are rejected. The two genera are considered to be incertae sedis within the Asellota superfamily Janiroidea pending further studies.

Poecilia (Pamphorichthys) akroa, a new poeciliid species (Cyprinodontiformes: Poeciliidae) from the Rio Tocantins basin, Brazil

Zootaxa ◽  
2018 ◽  
Vol 4461 (3) ◽  
pp. 438
Author(s):  
CARLOS AUGUSTO FIGUEIREDO ◽  
CRISTIANO R. MOREIRA
Keyword(s):  
New Species ◽  
Sensory System ◽  
Color Pattern ◽  
Distal Portion ◽  
The Body ◽  
Caudal Peduncle ◽  
Posterior Portion ◽  
Anterior Branch ◽  
Black Blotch ◽  
A New Species

A new species, Poecilia (Pamphorichthys) akroa, is described from the Rio Tocantins drainage, Brazil. The new species differs from the remaining species of the genus by the possession of 10 or 11 pectoral-fin rays, entire preopercular ramus and posterior portion of the supraorbital ramus of the cephalic sensory system enclosed in canals, a faint longitudinal band along the body, a single gonapophysis, a homogeneous reticulate color pattern on sides of body, urogenital region of females heavily pigmented, distalmost segments of the anterior branch (4a) of the fourth gonopodial ray fused into an elongated segment turned anteriorly, subdistal segments of anterior branch (5a) of fifth gonopodial ray simple, without anterior (ventral) projections, dorsal fin with pigmentation at its distal portion and with a basal black blotch, and chromatophores more concentrated on the posterior margin of the mid-ventral scale series of the caudal peduncle and ventrolateral margin of the adjacent scales forming a series of rhombi posterior to anal fin. 

VI.—Note on Ephippioceras clitellarium, J. de C. Sowerby, sp., and E. costatum, A. H. Foord

1900 ◽  
Vol 7 (12) ◽  
pp. 560-561
Author(s):  
G. C. Crick
Keyword(s):  
New Species ◽  
New Genus ◽  
British Museum ◽  
Acute Angle ◽  
The Body ◽  
Museum Collection ◽  
Body Chamber ◽  
Coal Measures ◽  
A New Species

The name Nautilus clitellarius was given by J. de C. Sowerby to a Nautiloid from the Coal-measures, Coalbrookdale, Shropshire, and the description was accompanied by three figures, each representing a different specimen. In 1884 the species was included by Professor Hyatt in his new genus Ephippioceras. In 1891 Dr. A. H. Foord found a new species, Ephippioceras costatum, which was said to be “distinguished from E. clitellarium (to which it is, however, very closely related) by the character of the septa and by the surface ornaments. The septa in E. costatum do not form such an acute lobe upon the periphery as do those of E. clitellarium, and they are also a little wider apart in the former species than they are in the latter. Moreover, E. costatum is provided with prominent transverse costæ, which are strongest upon the sides of the shell where they swell out into heavy folds. These costæ are directed obliquely backwards, and cross the septa at an acute angle, passing across the periphery and forming a shallow sinus in the middle. None of the specimens in the British Museum have the test preserved, so that the ribbing has only been observed upon casts. The costæ are equally well developed upon the body-chamber and upon the septate part of the shell in the adult, but they were either very feeble or altogether absent in the young.” A re-examination of the specimens in the Museum collection shows that the separation of the two forms is quite justifiable.

scholarly journals A new species of the genus Ectromopsis Antoine, 1949 from Turkey (Coleoptera: Tenebrionidae)

2021 ◽  
Vol 113 ◽  
pp. 1-9
Author(s):  
Maxim V. Nabozhenko
Keyword(s):  
New Species ◽  
Body Shape ◽  
The Body ◽  
Central Anatolia ◽  
Key To Species ◽  
Shape Structure ◽  
Caspian Depression ◽  
West Kazakhstan ◽  
A New Species ◽  
Coleoptera Tenebrionidae

Ectromopsis merkli sp. n. (Coleoptera: Tenebrionidae: Helopini) is described from Central Anatolia (coast of Eğirdir Lake). The species is the most similar to E. tantilla Ménétriés, 1848 from the Caspian depression (European Russia, West Kazakhstan) and differs in the body shape, structure of genae, the shape of pronotum and elytral punctation. Brief information about a relic type of distribution, trophic associations and adaptations of Ectromopsis spp. are given, as well as a key to species from the eastern part of the range. With seven figures.

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