The status of the genus Hokkaidocephala Tenora, Gulyaev & Kamiya, 1999 (Cestoda: Anoplocephalidae), parasites of the endemic Japanese field mice (Apodemus spp.)

Zootaxa ◽  
2008 ◽  
Vol 1925 (1) ◽  
pp. 62-68
Author(s):  
VOITTO HAUKISALMI ◽  
MITSUHIKO ASAKAWA ◽  
ANDRÁS GUBÁNYI
Keyword(s):  
Type Species ◽  
Seminal Receptacle ◽  
Maximum Size ◽  
Reproductive Organs ◽  
Seminal Vesicles ◽  
Valid Genus ◽  
The Status ◽  
Apodemus Argenteus ◽  
Field Mice ◽  
Specific Species

The present study reconsiders the status of the genus Hokkaidocephala Tenora, Gulyaev & Kamiya, 1999 by examining available specimens of the type species H. apodemi (Iwaki, Tenora, Abe, Oku & Kamiya, 1994) (syn. Andrya apodemi) and comparing them with related anoplocephaline cestodes. It is shown that Hokkaidocephala apodemi does not differ fundamentally from related genera in the development of the reproductive organs, contrary to the argument of Tenora et al. (1999). In Hokkaidocephala and related genera (Anoplocephaloides Baer, 1923 s. str. and Microcephaloides Haukisalmi, Hardman, Hardman, Rausch & Henttonen, 2008), sperm appears in the seminal receptacle (female organ) simultaneously or slightly earlier than in the seminal vesicles (male organs) and the ovary and vitellarium are absent in postmature proglottides where testes still persist and usually reach their maximum size. However, Hokkaidocephala is considered here a valid genus differentiated from the related genera by its unique uterine structure and development. Presently, Hokkaidocephala includes two host-specific species [H. apodemi and H. baeri (Rausch, 1976) n. comb. (= Anoplocephaloides baeri Rausch, 1976)] parasitizing endemic Japanese field mice (primarily Apodemus argenteus).

The status of Kunziana Pretzmann, 1971 (Crustacea: Decapoda: Pseudothelphusidae), with a redescription of the holotype of K. irengis Pretzmann, 1971

Zootaxa ◽  
2009 ◽  
Vol 2276 (1) ◽  
pp. 40-48 ◽  
Author(s):  
CÉLIO MAGALHÃES ◽  
MICHAEL TÜRKAY ◽  
D. BRUCE MEANS
Keyword(s):  
Natural History ◽  
South America ◽  
Type Species ◽  
Natural History Museum ◽  
Type Locality ◽  
History Museum ◽  
Valid Genus ◽  
The Status

This work was prompted by the rediscovery in the Natural History Museum, Vienna, of the holotype of Eudaniella(Kunziana) irengis Pretzmann, 1971, the type species of the subgenus Eudaniella (Kunziana) Pretzmann, 1971 (familyPseudothelphusidae). Unique characters of the first male gonopod of this species warrant the recognition of KunzianaPretzmann, 1971, as a valid genus. Kunziana irengis is redescribed here from the holotype and from new materialcollected near the type locality in Guyana, South America, and its affinities with other genera of Kingsleyini are discussed.

scholarly journals Proposal for ‘Candidatus Mycoplasma haemomuris subsp. musculi’ in mice, and ‘Candidatus Mycoplasma haemomuris subsp. ratti’ in rats

2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 734-737 ◽  
Author(s):  
Ryô Harasawa ◽  
Hiromi Fujita ◽  
Teruki Kadosaka ◽  
Shuji Ando ◽  
Yasuko Rikihisa
Keyword(s):  
Type Species ◽  
Sequence Similarity ◽  
Rattus Rattus ◽  
Nucleotide Sequences ◽  
Small Field ◽  
Content Type ◽  
Link Type ◽  
Apodemus Argenteus ◽  
Field Mice ◽  
Black Rats

Mycoplasma haemomuris is causative of infectious anaemia or splenomegaly in rodents. We examined the nucleotide sequences of the non-ribosomal genes, rnpB and dnaK, in strains of the species M. haemomuris detected in small field mice and black rats. rnpB nucleotide sequences in strains of the species M. haemomuris isolated from small field mice and black rats had only 89 % sequence similarity, suggesting their separation into two distinct subgroups. dnaK had a nucleotide sequence similarity of 84 % between the subgroups. These results support the classification of M. haemomuris into two genetically distinct subgroups. Here we propose the establishment of these subgroups as ‘Candidatus Mycoplasma haemomuris subsp. musculi’, detected in small field mice (Apodemus argenteus), and ‘Candidatus Mycoplasma haemomuris subsp. ratti’, detected in black rats (Rattus rattus).

Changes in the Male Reproductive Organs of the Dugong, Dugong dugon (Sirenia: Dugondidae) with Age and Reproductive Activity

1984 ◽  
Vol 32 (6) ◽  
pp. 721 ◽  
Author(s):  
H Marsh ◽  
GE Heinsohn ◽  
TD Glover
Keyword(s):  
Reproductive Tract ◽  
Prostate Gland ◽  
Reproductive Activity ◽  
Reproductive Organs ◽  
Seminal Vesicles ◽  
Growth Layer ◽  
Male Reproductive Tract ◽  
Qualitative And Quantitative ◽  
Quantitative Examination ◽  
Testicular Histology

The anatomy and histology of the male reproductive tract of the dugong (Dugong dugon) is described. Each testis and its adjacent epididymis lie immediately caudal to the corresponding kidney. The seminal vesicles are large but there is no discrete prostate gland and the bulbo-urethral glands are also diffuse. Both qualitative and quantitative examination of the testes and epididymides of 59 males whose ages have been estimated from tusk dentinal growth layer counts indicate that the male dugong does not produce spermatozoa continuously, despite the absence of a distinct breeding season. Individual dugongs were observed with testes at all stages between complete quiescence and full spermatogenesis, and only 10 of the 40 mature males had fully spermatogenic testes and epididymides packed with spermatozoa. Androgenic and spermatogenic activity of the testes appeared to be in phase, but the testicular histology of some old males suggested that they may have been sterile for long periods.

scholarly journals The Ability of Honey Bee Drones to Ejaculate

2015 ◽  
Vol 59 (2) ◽  
pp. 127-133 ◽  
Author(s):  
Krystyna Czekońska ◽  
Bożena Chuda-Mickiewicz
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
Reproductive Organs ◽  
Seminal Vesicles ◽  
Analysis And Evaluation ◽  
Anatomical Changes ◽  
Manual Method ◽  
Delayed Development

Abstract The effectiveness of two methods of collecting semen from honeybee Apis mellifera drones was compared, and the reasons for problems with ejaculating semen were analysed. Among 275 drones, 100 were stimulated to release semen using a manual method, 100 with the use of chloroform, and from 75 drones the reproductive organs were dissected for analysis and evaluation. It was found that the principal causes of problems that drones had with ejaculating their semen were anatomical changes or a delay in the development of the mucus glands. It was also found that the method employing chloroform was less efficient in the first phase of eversion of the endophallus, compared with the manual method. The method with the use of chloroform allows the determination of the proportion of drones, which do not evert the endophallus because of poor or delayed development of mucus glands, as well as the proportion of drones which evert the organ, but do not ejaculate semen because of the absence of semen in the seminal vesicles.

scholarly journals Redescription of two land planarian species of Notogynaphallia Ogren & Kawakatsu (Platyhelminthes, Tricladida, Geoplaninae) and confirmation of the heterogeneity of the genus

2006 ◽  
Vol 23 (3) ◽  
pp. 746-757 ◽  
Author(s):  
Fernando Carbayo
Keyword(s):  
Strong Evidence ◽  
Type Species ◽  
Muscle Layer ◽  
Reproductive Organs ◽  
Retractor Muscle ◽  
Morphological Heterogeneity ◽  
Muscle Retractor ◽  
Group 2 ◽  
Land Planarian

Notogynaphallia caissara (E.M. Froehlich, 1955) and N. fita (Froehlich, 1959) are redescribed. Both species are included in the so-called group 2 of E.M. Froehlich & Leal-Zanchet (2003), in Notogynaphallia, and are provided with a cephalic retractor muscle derived from the ventral longitudinal subepidermic muscle layer. A muscle retractor does not exist in the type-species of the genus. This is strong evidence of the morphological heterogeneity within the genus, as E.M. Froehlich & Leal-Zanchet (2003) previously proposed mainly based on characters of the reproductive organs.

scholarly journals Morphology of an Early Oligocene beaver Propalaeocastor irtyshensis and the status of the genus Propalaeocastor

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3311 ◽  
Author(s):  
Lüzhou Li ◽  
Qiang Li ◽  
Xiaoyu Lu ◽  
Xijun Ni
Keyword(s):  
Global Climate Change ◽  
Global Climate ◽  
Dental Morphology ◽  
Late Oligocene ◽  
Morphological Comparison ◽  
Valid Genus ◽  
Early Oligocene ◽  
The Status ◽  
Irtysh River ◽  
The Irtysh River

The Early to Late Oligocene Propalaeocastor is the earliest known beaver genus from Eurasia. Although many species of this genus have been described, these species are defined based on very fragmentary specimens. Propalaeocastor irtyshensis from the Early Oligocene Irtysh River Formation in northwestern Xinjiang, China is one of the earliest-known members of Propalaeocastor. This species is defined on a single maxillary fragment. We revise the diagnosis of P. irtyshensis and the genus Propalaeocastor, based on newly discovered specimens from the Irtysh River Formation. The dental morphology of P. irtyshensis is very similar to other early castorids. The caudal palatine foramen of P. irtyshensis is situated in the maxillary-palatine suture. This is a feature generally accept as diagnostic character for the castorids. On the other hand, P. irtyshensis has two upper premolars, a rudimentarily developed sciuromorph-like zygomatic plate, and a relatively large protrogomorph-like infraorbital foramen. Some previous researchers suggested that Propalaeocastor is a junior synonym of Steneofiber, while other took it as a valid genus. Our morphological comparison and phylogenetic analysis suggest that Propalaeocastor differs from Steneofiber and is a valid genus. We also suggest that Agnotocastor aubekerovi, A. coloradensis, A. galushai, A. readingi, Oligotheriomys primus, and “Steneofiber aff. dehmi” should be referred to Propalaeocastor. Propalaeocastor is the earliest and most basal beaver. The origin place of Propalaeocastor and castorids is uncertain. The Early Oligocene radiation of castorids probably is propelled by the global climate change during the Eocene-Oligocene transition.

Revision of world Ceroptresini (Hymenoptera: Cynipidae) with the description of a new genus and five new species

Zootaxa ◽  
2019 ◽  
Vol 4685 (1) ◽  
pp. 1-67 ◽  
Author(s):  
IRENE LOBATO-VILA ◽  
JULI PUJADE-VILLAR
Keyword(s):  
New Species ◽  
Type Species ◽  
Morphological Traits ◽  
New Genus ◽  
Taxonomic Revision ◽  
Valid Species ◽  
Distribution Data ◽  
The Status ◽  
The Usa ◽  
First Time

A taxonomic revision of the tribe Ceroptresini (Hymenoptera: Cynipidae) is conducted for the first time. Prior to this study, the total number of valid species of Ceroptres, the only genus within Ceroptresini to date, was 23. As a result of this revision, 15 Ceroptres species are retained as valid and one species, Amblynotus ensiger Walsh, 1864, is desynonymized from Ceroptres petiolicola (Osten-Sacken, 1861), being considered here as a valid Ceroptres species: C. ensiger (Walsh, 1864) status verified and comb. nov. An additional five new species are described from Mexico: Ceroptres junquerasi Lobato-Vila & Pujade-Villar sp. nov.; C. lenis Lobato-Vila & Pujade-Villar sp. nov.; C. mexicanus Lobato-Vila & Pujade-Villar sp. nov.; C. nigricrus Lobato-Vila & Pujade-Villar sp. nov.; C. quadratifacies Lobato-Vila & Pujade-Villar sp. nov., increasing the total number of valid Ceroptres species to 21. Ceroptres masudai Abe, 1997 is synonymized with C. kovalevi Belizin, 1973. Ceroptres niger Fullaway, 1911 is transferred to Andricus (Andricus confusus Lobato-Vila & Pujade-Villar comb. nov. and nom. nov.). Five species (Amblynotus inermis Walsh, 1864; Cynips quercusarbos Fitch, 1859; Cynips querficus Fitch, 1859; Cynips quercuspisum Fitch, 1859; and Cynips quercustuber Fitch, 1859) are not considered as valid Ceroptres. The status of Ceroptres quereicola (Shinji, 1938), previously classified as an unplaced species, is commented on. In addition, a Nearctic species from the USA, Ceroptres politus Ashmead, 1896, is here proposed as the type species of a new genus within Ceroptresini: Buffingtonella Lobato-Vila & Pujade-Villar gen. nov. Redescriptions, biological and distribution data, illustrations and keys to genera and species within Ceroptresini are provided. The diagnostic morphological traits of Ceroptresini, Ceroptres and the new genus are discussed. 

Bicarinellata a new name for Bicarinella Rode, Lieberman, and Rowell, 2003 (Arthopoda, Bradoriida) preoccupied by Bicarinella Waterhouse, 1966 (Mollusca, Gastropoda) and Bicarinella Akopyan, 1976 (Mollusca, Gastropoda)

2008 ◽  
Vol 82 (6) ◽  
pp. 1220-1220 ◽  
Author(s):  
Alycia L. Stigall
Keyword(s):  
New Zealand ◽  
Late Cretaceous ◽  
Type Species ◽  
East Antarctica ◽  
Zoological Nomenclature ◽  
Early Cambrian ◽  
International Code ◽  
New Name ◽  
Valid Genus ◽  
The One

The genus Bicarinella Rode et al., 2003 was erected for a new hipponicharionid bradoriid species described from the early Cambrian of East Antarctica, characterized by a subtriangular carapace with prominent anterior and posterior lobes developed as two distinctive, sharp ridges (bi = two, carina = ridges). Unfortunately, the name Bicarinella is preoccupied by two different gastropod genera: Bicarinella Waterhouse 1966, a Permian gastropod from New Zealand and Australia, and Bicarinella Akopyan 1976, a gastropod from Late Cretaceous strata of Armenia, Serbia, Romania, Tajikistan, and Egypt (Mennessier, 1994; Banjac, 1998; Pana, 1998). Mennessier (1994) transferred Bicarinella Akopyan, 1976 from its original status as an independent taxon to a subgenus of Pseudomesalia Douvillé 1916, but subsequent workers have continued to consider Bicarinella a valid genus (Pena, 1998; Banjac, 1998). Due to the preoccupation, the bradoriid genus is herein renamed in accordance with the requirement of the International Code of Zoological Nomenclature (1999, article 60). It is also noted here that the one of the two distinct gastropod genera should be renamed. The name Bicarinellata (bi = two, carina = ridges) is proposed as a replacement name for Bicarinella Rode et al., 2003. This name retains the original prefixes to preserve taxonomic stability as much as possible. The type species of Bicarinellata is B. evansi by original designation (Rode et al., 2003).

THE GROWTH OF THE VENTRAL AND DORSOLATERAL PROSTATE, THE COAGULATING GLANDS AND THE SEMINAL VESICLES IN FORCE-FED HYPOPHYSECTOMIZED CASTRATED ADRENALECTOMIZED RATS INJECTED WITH CORTISONE AND/OR INSULIN

1972 ◽  
Vol 71 (1) ◽  
pp. 179-190 ◽  
Author(s):  
Lars-Eric Tisell ◽  
Lennart Angervall
Keyword(s):  
Histological Examination ◽  
Anterior Pituitary ◽  
Adrenal Glands ◽  
Reproductive Organs ◽  
Seminal Vesicles ◽  
The Other ◽  
Protamine Zinc Insulin ◽  
Adrenalectomized Rats ◽  
Stimulation Of

ABSTRACT The growth of the ventral and dorsolateral prostate, the coagulating glands and the seminal vesicles was studied in force-fed hypophysectomized castrated adrenalectomized rats following daily injections for fourteen days of protamine zinc insulin or cortisone acetate alone or in combination. Cortisone was given in daily doses of 3 mg and insulin was administered in increasing daily doses of protamine zinc insulin up to 8 IU. Cortisone alone induced slight histological stimulation of the epithelium of the coagulating glands, while no stimulation was demonstrated in the other accessory reproductive organs. After insulin alone the weight of the accessory reproductive organs was slightly increased but no stimulation was demonstrated histologically. Cortisone and insulin given in combination induced distinct signs of stimulation of all the accessory reproductive organs as assesed by histological examination and weight determination of the organs. The results indicate that in the rat the growth stimulating effect of cortisone on the male accessory reproductive organs is markedly decreased or abolished in the absence of the anterior pituitary. Insulin can act synergistically with cortisone in promoting the growth of the accessory reproductive organs through effects which are not dependent on the presence of the adrenal glands or the anterior pituitary.

A revision of the genus Donda Moore, 1882 with description of two species from East Asia (Lepidoptera, Noctuidae: Pantheinae). Revision of Pantheinae, contribution V

Zootaxa ◽  
2012 ◽  
Vol 3582 (1) ◽  
pp. 37 ◽  
Author(s):  
G. BEHOUNEK ◽  
H. L. HAN ◽  
V. S. KONONENKO
Keyword(s):  
New Species ◽  
East Asia ◽  
Type Species ◽  
Female Genitalia ◽  
Male And Female ◽  
Two New Species ◽  
The Status ◽  
Lepidoptera Noctuidae

The Oriental Pantheinae genus Donda Moore, 1882 is revised. The type-species of the genus—Donda eurychlora (Walker, 1858) is recognized as a complex of species. Two new species, Donda continentalis sp. n. from Thailand, China, and Vietnam and D. sundana sp. n. from Indonesia are described. Two species, D. thoracica Moore, 1882 and D. striatovirens Moore, 1883, are excluded from the genus Donda. The status of two taxa, D. ornata Moore, 1883 and D. lichenoides (Hampson, 1894) remains open. The imagines, male and female genitalia are illustrated. The checklist of the genus Donda is presented.

Sign in / Sign up

Export Citation Format

Share Document