著者

井原 庸

出版者

日本動物分類学会

雑誌

タクサ:日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

vol.22, pp.20-30, 2007-02-20 (Released:2018-03-30)

参考文献数

7

---

The spider genera Cybaeus (Cybaeidae) and Arcuphantes (Linyphiidae) comprise numerous species endemic to Japan. They are considered to have diverged as the result of geographic isolations, probably enhanced by their low dispersal abilities. The current paper analyses the species composition and geographic differentiation in the genera Cybaeus and Arcuphantes in western Honshu and adjacent areas. The genus Cybaeus contains species with a wide range body lengths (from ca. 3 to 15mm), with local species assemblages usually consisting of representatives of different size classes. Local species assemblages often constitute a group of closely related species, together with other similar-sized species that are allopatrically or parapatrically distributed with one another. Diversity in genital morphology and geographic differentiation patterns are discussed for species-groups of Cybaeus (C. nipponicus, C. kuramotoi-group, C. miyosii-group and C. hiroshimaensis-group) in western Japan. The kuramotoi-group, which contains species of medium size (approximately 5 to 7mm in body length), has the most diverse genital morphology and is characterized by the presence of a mating plug. The Arcuphantes longiscapus-group is composed of closely related but distinct species based on their morphology and geographical distribution. The group contains eight species that are distributed in western Honshu, northeastern Shikoku and some adjacent islands, Japan, but the distribution patterns are parapatric except for a few cases of narrow overlap. Among these species, morphology of the male palp and female epigynum was strictly speciesspecific. They operate like a lock-and-key system, so that mating is only possible between individuals of the same species.

著者

西川 輝昭

出版者

日本動物分類学会

雑誌

タクサ:日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

vol.34, pp.67-70, 2013-02-28 (Released:2018-03-30)

参考文献数

4

---

The current financial crisis at the International Trust for Zoological Nomenclature (ITZN) is reported here in the hope of inspiring widespread participation in an urgent, earnest, and ultimately successful fund-raising effort to save it. The organization, purpose, and history of ITZN are recounted here in brief, and evidently for the first time in Japanese, to foster a wider and better understanding of its significance. ITZN financially supports the entire operation of the International Commission on Zoological Nomenclature (ICZN) and its Secretariat, whose activities are indispensable for stability in the scientific names of animals. The Commission is responding innovatively to new technical opportunities by developing tools to make nomenclature more accessible and reliable, as shown by the 2012 amendment to the Code to allow valid electric publication and the relaunch of ZooBank, the Official Registry for Zoological Nomenclature, in a new architecture and better interface, both giving rise to an impressive increase in registrations. Establishing ZooBank as a gold-standard archive of scientific names is as important a task as the related endeavors of keeping archives of type specimens (the core role of Natural History Collections) and archives of published information (the core role of libraries and online data archives). ITZN's financial underpinnings must be restored quickly, with an assurance of steady and adequate future income. The risk is such that it could fail and be dissolved as soon as 2013. If ITZN founders, ICZN's ability to function will be severely compromised. A new "subscription" campaign to encourage annual pledges of funds to ITZN from stakeholder institutions and organizations around the world (museums, learned societies, businesses, etc.), including in Japan, is outlined.

著者

蛭田 眞平 角井 敬知

出版者

日本動物分類学会

雑誌

タクサ : 日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

no.29, pp.19-30, 2010-08-20

---

Personal computers (PCs) are now indispensable to any field of study, and it is important to master efficient ways to compose documents, analyze data, and manage literature. This is especially true of illustrations, which take much time and repeated editing prior to use in publications, posters, presentations, and so on. Although some reports exist on techniques for making digital illustrations there has been rapid progress in the development of new PC hardware and software, so that some types of previously intractable digital graphical processing methods are now feasible and even routine. In this report, we introduce an easy and efficient way to make digital illustrations based on recent progress in software development. Using as an example small arthropods, our main study subject, we demonstrate a digital illustration method implemented in Adobe^[○!R] Illustrator CS3^[○!R], and describe the use of CombineZ, a focus stacking software.

著者

八巻 明香

出版者

日本動物分類学会

雑誌

タクサ : 日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

no.14, pp.4-6, 2003-02-20

著者

柁原 宏

出版者

日本動物分類学会

雑誌

タクサ:日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

vol.37, pp.46-49, 2014-08-28 (Released:2018-03-30)

著者

山崎 博史

出版者

日本動物分類学会

雑誌

タクサ:日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

vol.41, pp.11-22, 2016-08-30 (Released:2017-02-07)

参考文献数

36

---

Recent studies of Japanese kinorhynchs are reviewed. Kinorhynchs (Phylum Kinorhyncha) are ecdysozoan animals with a body composed of head consisted of mouth cone and eversible introvert, neck, and 11 trunk segments. To date, about 230 species have been recorded worldwide, and all of them are exclusively marine meiobenthic species. In Japanese waters, 20 species have been known so far: of these, 9 species were described as new to science or reported as new to Japanese waters within this decade, and 4 species will be described/reported soon. Studies with the molecular phylogenetic and the total evidence analyses detected the phylogenetic relationships within the phylum, and suggested the new classification system. Phylogeographic study of two Echinoderes species detected the geographic population structures of the species, and suggested several historical events had affected to the population structures and distribution patterns of the two species.

著者

向井 稜 三浦 知之

出版者

日本動物分類学会

雑誌

タクサ:日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

vol.40, pp.30-41, 2016-02-29 (Released:2018-03-30)

---

Sternaspid annelids are common and often abundant in the world ocean. They are usually corrected in sandy or muddy bottoms at a variety of depths. Sternaspid annelids are now known as characterized by the morphology of ventro-caudal shield, papillae of the body surface and posterior shield chaetae. Although sternaspid annelids recorded from Japan have been called as Sternsapis scutata since 1930s works, we could record two genera and seven species from Enshu-Nada, Kumano-Nada and off Sendai, East coast of Japan: Sternsapis scutata sensu strict, S. affinis, S. islandica, S. thalassemoides, S. costata, Petersenaspis capillata, and P. palpallatoci. Sternaspis has seven abdominal chaetigers and shield with radial ribs, concentric line or both. Petesenaspis has eight abdominal chaetigers and shield with poorly distinct ribs but no concentric line.

著者

小島 純一

出版者

日本動物分類学会

雑誌

タクサ:日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

vol.12, pp.2-7, 2002-02-20 (Released:2018-03-30)

参考文献数

13

被引用文献数

1

著者

安倍 弘

出版者

日本動物分類学会

雑誌

タクサ:日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

vol.18, pp.30-33, 2005-02-20 (Released:2018-03-30)

参考文献数

14

著者

長澤 和也 石山 尚樹

出版者

日本動物分類学会

雑誌

タクサ:日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

vol.50, pp.11-19, 2021-02-28 (Released:2021-02-28)

参考文献数

53

---

The lernaeopodid copepod Salmincola markewitschi Shedko and Shedko, 2002 was collected in July 2019 from the buccal cavity of whitespotted char, Salvelinus leucomaenis (Pallas, 1814) (Salmonidae), reared at the Ishikawa Prefecture Fisheries Research Center (36°15′11″N, 136°25′17″E) in Kaga, Ishikawa Prefecture, central Japan. This represents the first record of Salmincola markewitschi from Ishikawa Prefecture. All of the four whitespotted char examined (263–324 mm standard length) were infected each by 2–5 adult females of Salmincola markewitschi. The adult female of copepod is described. The species is considered to have been introduced along with infected whitespotted char transported alive from a commercial trout farm in the same prefecture into the research center in January 2019. However, no infection was found after September 2019, which was caused by manual removal of copepods in July 2019 and their possible mortality due to unusually high water temperatures (up to 23℃) in August 2019. Since Salmincola markewitschi is morphologically similar to copepods previously reported as “Salmincola carpionis (Krøyer, 1837)” from salmonids (mainly chars Salvelinus spp.) from various localities of Japan, it is desirable to reidentify those copepods.

著者

藤原 恭司 高山 真由美 桜井 雄 本村 浩之

出版者

日本動物分類学会

雑誌

タクサ:日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

vol.39, pp.40-46, 2015-08-31 (Released:2018-03-30)

被引用文献数

2

---

The Duskytail Grouper, Epinephelus bleekeri (Perciformes: Serranidae), is recorded from Tanega-shima and Amami-oshima islands and the Yaeyama Islands in the Ryukyu Islands, southern Japan on the basis of six specimens (232.6-581.2 mm standard length). In addition, several records of E. bleekeri by photographs and/or observations from Kanagawa, Kochi, Ehime, Miyazaki, and Kagoshima prefectures are confirmed. Because E. bleekeri has previously been recorded from Taiwan and southward, the present specimens represent the first reliable records of the species from Japanese waters on the basis of collected specimens. Distributional implications of E. bleekeri in Japanese waters are discussed.

著者

本川 雅治 原田 正史 鄭 錫奇 林 良恭 子安 和弘

出版者

日本動物分類学会

雑誌

タクサ : 日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

no.5, 1998-08-20

著者

西川 輝昭

出版者

日本動物分類学会

雑誌

タクサ:日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

vol.49, pp.1-2, 2020-08-31 (Released:2020-09-03)

著者

酒井 勝司

出版者

日本動物分類学会

雑誌

タクサ : 日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

no.15, pp.13-30, 2003-08-20

被引用文献数

2

---

"Crabs of Japan" from the Expert Center for Taxonomic Identification (ETI), University of Amsterdam is going to be published from ETI. The information of this CD-ROM is based on "Crabs of Japan and the adjacent Sea by Tune Sakai (1976). The section of the true crabs is now extensively revised and extended by the extended carcinologist; Dr. Daniel Guinot, Museum national d' Histoire naturelle, Paris, Dr. Peter Davie, Queensland Museum, Brisbane, and the Dr. Michael Ttirkay, Forschungsinstitut Senckenberg, Frankfurt am Main. Some 1250 species of Brachyuran crabs from Japan and adjacent sea are recognized, and information on genera, families and etc is also provided. Herewith the Japanese common names of crabs are added for the Japanese users (http://www2.shikokuu.ac.jp/people/crabs/).

著者

泉 貴人 藤井 琢磨 柳 研介 藤田 敏彦

出版者

日本動物分類学会

雑誌

タクサ:日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

vol.48, pp.13-19, 2020-02-29 (Released:2020-03-13)

参考文献数

13

---

Isactinernus quadrilobatus Carlgren, 1918, the only species of genus Isactinernus, is characterized by an oral disc with four equally-sized lobes. In 2003 Synactinernus flavus Carlgren, 1918, which is characterized by four large and four small lobes alternately arranged, was synonymized into I. quadrilobatus because the difference of lobe shape was thought to be intraspecific variation, and thus the genus Synactinernus was also synonymized into Isactinernus. However, our molecular phylogenetic analysis of Actinernidae including I. quadrilobatus collected from the Kumano Sea revealed that I. quadrilobatus is genetically distinct from S. flavus. Our morphological comparison between the two species supported the result of the molecular analysis. Consequently, the genus Synactinernus was re-established and separated from Isactinernus. Additionally, during this study, we discovered and described an additional species of the genus, Synactinernus churaumi Izumi and Fujii, 2019.

著者

林田 奈々 田中 文也 瀬能 宏 岩槻 幸雄

出版者

日本動物分類学会

雑誌

タクサ:日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

vol.33, pp.13-16, 2012-08-20 (Released:2018-03-30)

参考文献数

10

---

A single specimen of a lutjanid fish, Lutjanus johnii (445mm in standard length), was collected from the Kuro-shima Island, Nichinan, Miyazaki, Kyushu Island, Japan. The species is distinguished from other members of the genus by the following combination of characters: a black ocellus larger than eye mainly above lateral line and below anterior soft dorsal-fin rays; longitudinal scale rows on back parallel to lateral line; a brownish dark spot on exposed area of each scale on body. This occurrence represents both the first record from the Japanese waters and the northernmost record on the basis of specimen. Morphological features and coloration of the Japanese specimen are described in detail, and the standard Japanese name, Kadogawa-fuedai is given.

著者

齋藤 暢宏

出版者

日本動物分類学会

雑誌

タクサ:日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

vol.13, pp.18-31, 2002-08-20 (Released:2018-03-30)

参考文献数

103

---

In Japan, 111 species (including 11 unidentified taxa) of epicaridean isopods have so far been recorded. All species are parasites, infesting various crustacean hosts, such as Decapoda, Ostracoda, Cirripedia, Mysidacea, and etc. Their larvae are known from ectoparasites of pelagic copepods. In the present paper, 121 species of crustacean hosts of epicaridean isopods are listed (1 species of Ostracoda, 8 of Copepoda, 1 of Balanomorpha, 1 of Rhizochephala, 2 of Mysidacea, 11 of Penaeidea, 33 of Caridea, 1 of Astacidea, 5 of Thalassinidea, 27 of Anomura, 30 of Brachyura, and 1 of unknown taxa).

著者

田中 隼人 小鳥居 英 横澤 賢 若林 楓芽 木本 和代 佐野 恵子

出版者

日本動物分類学会

雑誌

タクサ:日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

vol.38, pp.26-41, 2015-02-28 (Released:2018-03-30)

被引用文献数

1

---

Diverse aquatic organisms are living in the immediate freshwater environments such as the rice field, pond and ditch. This study reports a freshwater ostracod fauna of rice field and spring from Fuji and Fujinomiya, Japan. We found 14 species (13 genera), and Pseudocandona pratensis (Hartwig, 1901) is newly recorded from Japan. The morphological characters, distribution in Japan, and taxonomic remarks are provided for these species. And also five species were given the new Japanese name. We discussed on the distribution of Dolerocypris ikeyai Smith and Kamiya, 2006 and Stenocypris hirutai Smith and Kamiya, 2006 found from rice field. Both species has been reported from runoff of spring, seeps, interstitial environment. We regarded their reduced swimming setae on antenna as an adaptive character to shallow and gently water flow. Population of rice field of this two species could be originated from the source of an irrigation channel, and they might be incidentally stayed in the rice field.

著者

脇 司 澤畠 拓夫

出版者

日本動物分類学会

雑誌

タクサ:日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

vol.47, pp.23-29, 2019-08-31 (Released:2019-09-12)

参考文献数

33

---

Nematodes of the genus Phasmarhabditis Andrássy, 1976 (Secernentea: Rhabditida: Rhabditidae) are terrestrial gastropod parasites and mainly target land slugs. In this study, land slugs were surveyed at 14 locations in seven prefectures of Honshu Island, Japan, to determine Phasmarhabditis spp. infection. Juvenile nematodes of unknown species were found in Meghimatium bilineatum Benson, 1842, at five of the 14 locations. The prevalence and mean intensities ranged from 4.5% to 93.3% and from 4.7 to 22.5 nematodes per host, respectively. A total of 881 juveniles were incubated with slug tissues for 2–10 days, and subsequently developed into adult stage showing the diagnostic characteristics of Phasmarhabditis spp. No nematodes were found from slugs of the genus Lehmannia sampled where M. bilineatum were infected, indicating a difference among host species in their sensitivity to the nematodes. Twenty M. bilineatum from Meguro in Tokyo, Japan, where the prevalence in the host population was >90%, were maintained under laboratory conditions. After 23 days, 11 of the 20 slugs died and the cadavers were infected with numerous nematodes. Since three species of Phasmarhabditis nematodes are known to be lethal to terrestrial gastropods, the nematodes we sampled possibly have a lethal effect on the host slugs.

著者

本村 浩之

出版者

日本動物分類学会

雑誌

タクサ:日本動物分類学会誌 (ISSN:13422367)

巻号頁・発行日

vol.34, pp.32-53, 2013-02-28 (Released:2018-03-30)

参考文献数

41

---

In this paper, the author presents a practical and theoretical approach to studying fish taxonomy for students and early career researchers, based on his personal experience working on the revision of threadfins-marine and freshwater fishes of the family Polynemidae. The approach is systematically arranged and described under twelve chapters, including an introduction, an insight into fish taxonomy research opportunities, and a conclusion, in the following order: Introduction; Research start-up; Writing the first taxonomic paper; Revisionary work: focus on common and widespread species; Reassessment of type specimens and original descriptions; The distributional implications of target taxa; Morphology and Ecology; Comparison between revision and review of taxonomic papers; A strategy on the order of publications; Recognizing species differences: natural aptitude or plentiful experience?; Research frontier: the numerous undescribed Southeast Asian freshwater fish species; and Conclusion.