scholarly journals Memoirs: On some remarkable new Forms of Caryophyllaeidae from the Anglo-Egyptian Sudan, and a Revision of the Families of the Cestodaria

1923 ◽  
Vol s2-67 (267) ◽  
pp. 435-472
Author(s):  
W. N. F. WOODLAND
Keyword(s):  
Life History ◽  
New Species ◽  
New Genus ◽  
The Body ◽  
Caudal Appendage ◽  
Anterior Half ◽  
The Family ◽  
History Of

1. Four remarkable new species of Caryophyllaeidae from the Anglo-Egyptian Sudan are described, three of which (from Siluroid fishes) are referred to a new genus, Wenyonia --W. virilis, W. acuminata, and W. minuta--and the fourth (from Mormyrus caschive) to the original genus Caryophyllaeus--C. filiformis. The chief characteristics of the new genus are the situation of the sexual apertures in the anterior half of the body, and the elongated uterus. The family Caryophyllaeidae, after deletion of the genera Diporus, Monobothriuin, and Glaridacris, thus contains three genera--Caryophyllaeus, Archigetes, and Wenyonia--all of which are re-defined, with their known species. 2. Very young immature forms of Wenyonia occur in the same (Siluroid) host as the adult and are devoid of a ‘caudal’ appendage, whence it would appear that the life-history of these new forms is different from that of C. laticeps. 3. The three families of the Cestodaria--Caryophyllaeidae, Gyrocotylidae, and Amphilinidae--are re-defined. 4. The Cestodaria, after eliminating Sanguinicola (a Trematode ?), are provisionally grouped into two Orders: the Amphilinidea (with one family, the Amphilinidae) and the Paralinidea (with two families, the Caryophyllaeidae and the Gyrocotylidae), the latter being closely allied to the Bothriocephalidae. These two Orders are defined.

On the Morphology and Life History of Fasciola nyanzae Leiper, 1910 from the Hippopotamus

1961 ◽  
Vol 35 (S1) ◽  
pp. 53-62 ◽  
Author(s):  
J. A. Dinnik ◽  
N. N. Dinnik
Keyword(s):  
Life History ◽  
New Species ◽  
Bile Ducts ◽  
The Body ◽  
Characteristic Shape ◽  
History Of ◽  
Liver Flukes ◽  
A New Species

A half a century ago, R. T. Leiper described a new species belonging to the genus Fasciola from specimens which he collected from hippopotami at the Murchison Falls, on the Victoria Nile in Uganda, in the summer of 1907. This species, Fasciola nyanzae, was found in the bile ducts of the liver, and in most instances the specimens were somewhat macerated owing to the length of time that had elapsed before the animal could be recovered from the water. Nevertheless, the characteristic shape of these liver flukes and the restriction of the branched testes to the anterior third of the body made it possible to recognise them as being different from all other species of the genus known at that time.

The new genus Acrocephalomyia, and a new species of Ropalomera from Costa Rica, with additional records for other Mesoamerican species (Diptera: Ropalomeridae)

Zootaxa ◽  
2012 ◽  
Vol 3478 (1) ◽  
pp. 553-569 ◽  
Author(s):  
SERGIO IBÁÑEZ-BERNAL ◽  
VICENTE HERNÁNDEZ-ORTIZ
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Central America ◽  
New Taxa ◽  
New Genus ◽  
The Body ◽  
New Genus And Species ◽  
The Family ◽  
Forward Projection ◽  
A New Species

New taxa of the family Ropalomeridae from Costa Rica are described, and additional records of ropalomerid flies fromMexico and Central America are provided. The new genus and species Acrocephalomyia zumbadoi can be easily distin-guished from all other ropalomerid genera by the following combination of characters: angular forward projection of head,absence of ocelli, flat face, bare arista, long scutum, and scutellum triangular-shaped and dorsally flattened with only onepair of apical bristles with bases approximated. The new species Ropalomera aterrima can be recognized from congenersby remarkable differences of the head, the shape of the scutellum, the absence of scutal vittae, fumose wings, and by theblack coloration of the body, ocellar bristles large, one postpronotal bristle, scutum without pollinose vittae and flat scutellum. Lenkokroeberia chryserea Prado and Kroeberia fuliginosa Lindner are newly confirmed for Costa Rica.

Vampire in the darkness: a new genus and species of land leech exclusively bloodsucking cave-dwelling bats from China (Hirudinda: Arhynchobdellida: Haemadipsidae)

Zootaxa ◽  
2019 ◽  
Vol 4560 (2) ◽  
pp. 257 ◽  
Author(s):  
TAIFU HUANG ◽  
ZHIWEI LIU ◽  
XIAOYAN GONG ◽  
TAO WU ◽  
HUI LIU ◽  
...  
Keyword(s):  
New Species ◽  
New Genus ◽  
Morphological Characteristics ◽  
Sequence Divergence ◽  
The Body ◽  
Coi Gene ◽  
Dna Taxonomy ◽  
The Family ◽  
Central South ◽  
Extended Discussion

Land leeches in the family Haemadipsidae are mostly from the humid tropical rainforest habitats and habitually take blood from the body of human and other animals. In the present study, we report a new species, Sinospelaeobdella wulingensis sp. n., from caves in the northern subtropical Wuling Mountains of central-south China that feeds blood exclusively on cave-dwelling bats. Based on morphological characteristics, COI gene sequence divergence, and phylogenetic analysis, a new genus Sinospelaeobdella gen. n. is established for the new species, to which a previously described species Haemadipsa cavatuses Yang et al., 2009 is transferred as S. cavatuses comb. n. We also provided extended discussion on phylogenetic relationship within the “Tritetrabdellinae” clade uncovered in a previous study, DNA taxonomy, morphological and behavioral adaptions, biogeography, and possible involvement of Sinospelaeobdella gen. n. in bat transmitted diseases of public concerns. 

Revision of the Madagascan genera Oncodopus Brongniart and Colossopus Saussure (Orthoptera: Tettigoniidae: Conocephalinae; Euconchophorini), with description of Malagasopus gen. nov.

Zootaxa ◽  
2017 ◽  
Vol 4341 (2) ◽  
pp. 193 ◽  
Author(s):  
MUSTAFA ÜNAL ◽  
GEORGE W. BECCALONI
Keyword(s):  
Life History ◽  
New Species ◽  
Phylogenetic Relationships ◽  
New Genus ◽  
Habitat Preferences ◽  
Mate Guarding ◽  
Morphological Characters ◽  
Museum Specimens ◽  
History Of

The endemic Madagascan genera Oncodopus Brongniart and Colossopus Saussure are revised using museum specimens, including the types, and recently collected material. A new genus, Malagasopus gen. nov., and seven new species, Malagasopus desutterae sp. nov., Malagasopus meridianus sp. nov., Oncodopus janetae sp. nov., Oncodopus brongniarti sp. nov., Oncodopus saussurei sp. nov., Oncodopus soalalaensis sp. nov. and Colossopus parvicavus sp. nov. are described. Lectotypes are designated for Oncodopus zonatus Brongniart, 1897 and Colossopus redtenbacheri (Brongniart, 1897). A new term, mesothoracic auricle, is proposed for a structure on the episternum of the mesothorax. A tabulated key to the genera and keys to the species are presented. All species are described and diagnosed, and their phylogenetic relationships, geographical distributions, habitat preferences and phenologies are documented. The life history of Colossopus grandidieri is described, and the unusual possible mate-guarding behaviour of several species is discussed. Maps showing the distribution of the species are presented, as too are 57 photographs of museum specimens, 51 drawings of morphological characters, 17 photographs of living specimens and one habitat photograph. 

New cyriacotheriid pantodonts (Mammalia, Pantodonta) from the Paleocene of Alberta, Canada, and the relationships of Cyriacotheriidae

2010 ◽  
Vol 84 (2) ◽  
pp. 197-215 ◽  
Author(s):  
Craig S. Scott
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Fossil Record ◽  
Evolutionary History ◽  
New Genus ◽  
The Family ◽  
Two New Species ◽  
Unusual Combination ◽  
Early Paleocene ◽  
History Of

Cyriacotheriidae are a family of unusual small-bodied pantodonts known from the Paleocene of the Western Interior of North America. Cyriacotheriids possess a suite of dental characters similar to that of pantodonts (e.g., molar dilambdodonty, lingual molar hypoconulids), as well as several divergent features (e.g., molarized premolars, strong molar conules) that have been interpreted as “dermopteran-like.” the unusual combination of pantodont and dermopteran-like characters, combined with a limited fossil record, has made attempts at understanding the broader relationships of Cyriacotheriidae difficult. This paper reports on a new genus and two new species of cyriacotheriids from the Paleocene of Alberta, Canada, with both species significantly older than those of the only previously described cyriacotheriid, Cyriacotherium. Collectively, the dentitions of these new taxa exhibit derived characters seen in Cyriacotherium (e.g., robust molar conules, strong molar dilambdodonty) in addition to a number of plesiomorphies seen in more basal pantodonts (e.g., conspicuous molar entoconids, deep premolar ectoflexus) and, importantly, posterior premolars that are weakly molariform and non-dilambdodont. A phylogenetic analysis of the new cyriacotheriid, basal pantodonts, dermopterans, and dermopteran-like eutherians resulted in Cyriacotheriidae nesting within a monophyletic Pantodonta. the results strengthen previous hypotheses regarding the pantodont affinities of the family, and suggest that the dermopteran-like features seen in the more derived Cyriacotherium were acquired convergently. Although the discovery of new cyriacotheriids sheds light on the evolutionary history of the family, it cannot resolve the ongoing questions of pantodont origins; nonetheless, their discovery in strata of early Paleocene age indicates that significant parts of the evolutionary history of Cyriacotheriidae, and North American pantodonts more generally, have yet to be discovered.

A Contribution to the Life-history of a Gnathostome

Parasitology ◽  
1925 ◽  
Vol 17 (3) ◽  
pp. 237-244 ◽  
Author(s):  
Asa C. Chandler
Keyword(s):  
Life History ◽  
Intestinal Tract ◽  
The Body ◽  
Stomach Wall ◽  
Hollow Structures ◽  
Number Of Species ◽  
The Family ◽  
History Of

The family Gnathostomidae contains several genera and a fair number of species of nematodes of rather aberrant type and of uncertain affinities. As pointed out by Baylis and Lane (1920) in their excellent revision of the family, there is little doubt but that it should be included in the superfamily Spiruroidea. The subfamily Gnathostominae is characterised by the possession of a head bulb containing four closed membranous hollow structures, called ballonets by Baylis and Lane, connected posteriorly with four elongate sac-like structures designated cervical sacs. Three genera are recognised in this sub-family as follows: Tanqua, in which the head bulb is provided with transverse cuticular ridges, and Echinocephalus and Gnathostoma in which the head bulb is provided with rows of thorn-like spines. In Echinocephalus the body is smooth and destitute of cuticular spines, whereas in Gnathostoma all or a large part of the body has rows of cuticular spines on the posterior edges of the annulations. The first two genera are parasitic in the intestinal tract of cold-blooded vertebrates, whereas Gnathostoma apparently has its normal habitat in the stomach wall of mammals, as Baylis and Lane have pointed out.

A new polyclad species associated withBankia martensi(Bivalvia) from the South Pacific coast of Chile, and its taxonomic position within Euplanidae (Platyhelminthes, Ilyplanoidea)

2013 ◽  
Vol 94 (1) ◽  
pp. 167-176 ◽  
Author(s):  
Francisco Brusa ◽  
Cristina Damborenea
Keyword(s):  
New Species ◽  
New Genus ◽  
Pacific Coast ◽  
South Pacific ◽  
Morphological Characters ◽  
The Body ◽  
Anterior Region ◽  
The South ◽  
South Pacific Ocean ◽  
The Family

We describe a new genus anda newspecies of Polycladida,Namyhplana henriettae(Platyhelminthes, Euplanidae), which lives associated with the tubes of the bivalveBankia martensiin the fjords of the South Pacific Ocean in Chile. This species is characterized by a ribbon-like body, light brown colour, anterior region devoid of pigment, few eyes, no tentacles, pharynx in the anterior region of the body with few folds, independent gonopores anterior to the medial body line, seminal vesicle strongly muscularized, digitiform penian papilla oriented posteroanteriorly, a curled vagina, and a large Lang's vesicle ventral to the intestine. A phylogenetic analysis of the Euplanidae, based on morphological characters, is presented. With the dataset used, the family Euplanidae does not seem to be a monophyletic group. The new species is closely related toTaenioplana teredini(also discussed here) which presents life-habit characteristics that are similar to those of the new species.

Rhigonematid (Nematoda) parasites of Archispirostreptus tumuliporus (Spirostreptida; Diplopoda) in Malawi

1985 ◽  
Vol 63 (4) ◽  
pp. 916-923 ◽  
Author(s):  
Martin L. Adamson ◽  
Nancy H. B. Anderson
Keyword(s):  
New Species ◽  
Type Species ◽  
New Genus ◽  
Buccal Cavity ◽  
The Body ◽  
Caudal Appendage ◽  
Anal Region ◽  
The Third ◽  
Two New Species ◽  
Dorsal Position

Two new species, including a new genus of rhigonematid nematode, are described from Archispirostreptus tumuliporus (Spirostreptida; Diplopoda) from Malawi. Brumptaemilius justini n.sp. resembles Brumptaemilius sclerophorus, the type species, and Brumptaemilius oschei in the form of the area rugosa in the male. It differs from male B. sclerophorus in having a caudal appendage which is longer and supports the last pair of caudal papillae; this pair is anterior to the caudal appendage in B. sclerophorus. Male B. justini differ from those of B. oschei in having a shorter caudal appendage, distinctly set off from the rest of the body, and in possessing a field of tiny bosses on either side in the anal region. Waerebekeia n.gen., with type species Waerebekeia simoni n.sp., resembles Brumptaemilius since males have a urceolate buccal cavity with three prominent pennate cuticular projections and three trifid teeth at its base. The genera are distinguished by the shape of the oral opening in the male (laterally elongate in Waerebekeia; subtriangular in Brumptaemilius), by the absence of an area rugosa and by the more dorsal position of the third papilla pair in male Waerebekeia.

An extraordinary new fluvial bdelloid rotifer, Coronistomus impossibilis gen. nov., sp. nov., with adaptations for turbulent flow (Rotifera: Bdelloidea: Coronistomidae fam. nov.)

Zootaxa ◽  
2021 ◽  
Vol 4966 (1) ◽  
pp. 16-28
Author(s):  
AYDIN ÖRSTAN
Keyword(s):  
New Species ◽  
Turbulent Flow ◽  
Body Length ◽  
New Genus ◽  
Ventral Side ◽  
Caudal Appendage ◽  
Bdelloid Rotifer ◽  
New Family ◽  
The Family ◽  
Rotifera Bdelloidea

A new bdelloid rotifer, Coronistomus impossibilis gen. nov., sp. nov. is described from the Hawlings River in Maryland, USA. The new species is a non-swimming sediment dweller that exceeds 550 µm in body length. Its corona is a weakly bilobed ciliated field on the ventral side of the head with lateral borders continuing into mouth. The species has ramate trophi that have on each half three widely spaced major teeth with two interproximal teeth. The foot lacks spurs and ends with a pair of long, thick ventral toes and a medially positioned caudal appendage. The new species lives in microhabitats exposed to turbulent flow and its morphological idiosyncrasies are interpreted as adaptations to reduce the likelihood of getting dislodged by the water. Although the corona morphology and the caudal appendage of the new species are similar to the corresponding traits of some of the species in the family Philodinavidae, the structure of its nonprotrusible trophi and its possession of only two toes (as opposed to four) separate it from all other members of the Philodinavidae. Therefore, a new family, Coronistomidae fam. nov., is erected for the new genus Coronistomus. 

The life-cycle of Rasajeyna nannyla n.gen., n.sp., a coccidian pathogen of Tipula paludosa Meigen

Parasitology ◽  
1977 ◽  
Vol 74 (3) ◽  
pp. 273-283 ◽  
Author(s):  
J. E. Beesley
Keyword(s):  
New Species ◽  
New Genus ◽  
Nuclear Division ◽  
Refractile Body ◽  
The Body ◽  
Confidence Limits ◽  
Active Flexion ◽  
The Family ◽  
External Phase ◽  
A New Species

A coccidium belonging to the family Adeleidae was discovered in the mid-gut cells of Tipula paludosa. A new genus Rasajeyna and a new species nannyla are established because this pathogen differs from previously described coccidia. A diagnosis of R. nannyla is given.The endogenous phase of R. nannyla is restricted to larvae. The oocysts, which are the external phase of the parasite, are swallowed by the leatherjackets and excyst in the anterior mid-gut. The sporozoites, 36·5 µm (± 5·4 µm, 95% confidence limits) long, 15·7 µm (± 1·8 µm, 95% confidence limits) wide, each containing a refractile body, enter the anterior mid-gut cells where the 1st schizogony occurs. The refractile bodies are retained during the early nuclear divisions. The sausage-shaped merozoites, 28·2 µm (± 4·3 µm, 95% confidence limits) long, 7·1 µm (± 0·9 µm, 95% confidence limits) wide, with posterior nuclei exhibit three distinct types of movement. (a) An active flexion of the body which is thought to occur during the intracellular phase. (b) A flicking action by both ends of the body. This is thought to occur during the free phase. (c) A spiralling motion which is thought to aid the entry of the merozoite into the cells.The nucles of the intracellular merozoite divides several times, forming a multinucleate body. The merozoites of the 2nd schizogony form in groups at the poles of the schizont. The merozites are indistinguishable from each other until after a period of growth has ensued, when they are differentiated as macro- and microgametocytes. The pear-shaped macrogamete 44·3 µm (± 4·5 µm, 95% confidence limits) long, 21·6 µm (± 3·2 µm, 95% confidence limits) wide, which contains a crescent-shaped structure in the nucleus. The microgametocyte grows to 40·3 µm (± 2·7 µm, 95% confidence limits) long, 16·7 µm (± 1·5 µm, 95% confidence limits) wide and then attaches itself lengthwise to the macrogamete. A membrane is then secreted around both partners. Nuclear division produces 4 microgametes, one of which fertilizes the female. The 1st and 2nd oocyst membranes are deposited before cytoplasmic shrinkage and meiosis. The zygote is 44·6 µm (± 4·2 µm, 95% confidence limits) long and 33·7 µm (± 4·1 µm, 95% confidence limits ) wide. Cytoplasmic condensation around the nuclei forms the sporoblasts which mature into sporocysts each containing 1 sporozoite. The zygote may be expelled from the larvae at any juncture after fertilization.

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