A review ofLeptocarisincluding a description ofL. ryukyuensissp. nov. (Copepoda: Harpacticoida: Darcythompsoniidae)

2011 ◽  
Vol 92 (5) ◽  
pp. 1073-1081 ◽  
Author(s):  
Sung Joon Song ◽  
Hans-Uwe Dahms ◽  
Jong Seong Khim
Keyword(s):  
New Species ◽  
East Asia ◽  
Sandy Beach ◽  
Endopodal Segment ◽  
Ryukyu Islands ◽  
Caudal Ramus ◽  
The Third ◽  
The Ryukyu Islands

We provide a review on scientific contributions concerned withLeptocaris(Harpacticoida: Copepoda) that includes the zoogeography, ecology, biology, and morphology of this genus. A tabular key is given to aid in the identification of theignavus-group.Leptocaris ryukyuensissp. nov. is included on the basis of specimens collected from Akeijima sandy beach of the Ryukyu Islands in Japan. The new species can be distinguished from its congeners by an abexopodal seta and 3 exopodal setae on A2, a barbed inner seta on the proximal, endopodal segment of female P1 to P3, setae of the caudal ramus (setae I and II are very small, and the basal seta is transformed to a big spine), and modified inner setules of P2 enp-2 and P3 enp-2 in the males. The new species belongs to theignavus-group established by Kunz (1994) and is the third species of the genusLeptocarisin East Asia.

The copepod genus Hatschekia Poche, 1902 (Siphonostomatoida: Hatschekiidae) from triggerfishes (Pisces: Tetraodontiformes: Balistidae) from off the Ryukyu Islands, Japan, with descriptions of eleven new species

Zootaxa ◽  
2010 ◽  
Vol 2478 (1) ◽  
pp. 1 ◽  
Author(s):  
DAISUKE UYENO ◽  
KAZUYA NAGASAWA
Keyword(s):  
New Species ◽  
Coastal Waters ◽  
Morphological Characters ◽  
Ryukyu Islands ◽  
Body Parts ◽  
Caudal Ramus ◽  
The Ryukyu Islands

Eleven new species of the genus Hatschekia Poche, 1902 (Copepoda: Siphonostomatoida: Hatschekiidae) are described based on female specimens from triggerfishes (Tetraodontiformes: Balistidae) caught in coastal waters of the Ryukyu Islands, Japan. These include Hatschekia hemicyclium n. sp. on Rhinecanthus rectangulus (Bloch & Schneider), R. aculeatus (L.) and R. verrucosus (L.); H. jonesi n. sp. on Sufflamen bursa (Bloch & Schneider) and S. fraenatum (Latreille); H. kabatai n. sp. and H. izenaensis n. sp. on Xanthichthys lineopunctatus (Hollard); H. churaumi n. sp. on Pseudobalistes flavimarginatus (Rüppell); H. zanpa n. sp. and H. fukurubi n. sp. on Balistapus undulatus (Park); H. mongarah n. sp. on Balistoides conspicillum (Bloch & Schneider); H. nakamurai n. sp. on Melichthys vidua (Richardson); H. mihkagan n. sp. on Odonus niger (Rüppell); and H. pseudobalistesi n. sp. on Pseudobalistes fuscus (Bloch & Schneider). Ten of the 11 new species, with the exception of H. fukurubi n. sp., share the intercoxal sclerites of legs 1 and 2 armed with 4 processes. This character differs from 87 of the known 97 species in Hatschekia. Of the 20 species with this character, the 10 new species are separated from each other mainly by the following morphological characters: the number of setal elements in the leg armature, on the antennule and the caudal ramus, the presence of posterior lobes on the trunk, the segmentation and form of the abdomen, and the length ratios of certain body parts.

A new species of the stenopodidean shrimp genus Odontozona Holthuis, 1946 (Crustacea: Decapoda: Stenopodidea: Stenopodidae) from the Ryukyu Islands, Indo-West Pacific

Zootaxa ◽  
2018 ◽  
Vol 4450 (4) ◽  
pp. 458
Author(s):  
TOMOMI SAITO ◽  
YOSHIHISA FUJITA
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Ryukyu Islands ◽  
West Pacific ◽  
The Third ◽  
Ascension Island ◽  
Pleural Surface ◽  
The Ryukyu Islands ◽  
A New Species ◽  
Submarine Caves

A new species of the stenopodidean shrimp genus Odontozona Holthuis, 1946 is described and illustrated on the basis of 3 specimens recently collected from submarine caves of Okinawa-jima and Ie-jima Islands, the Ryukyu Islands, southwestern Japan, Indo-West Pacific. Odontozona okunoi sp. nov. closely resembles O. anaphorae Manning & Chace, 1990 described from Ascension Island, South Atlantic Ocean, but differs from it by a combination of morphological characters, including the large cardiac spine on the carapace, the spines on the pleural surface, the posterior tooth of the telson, the irregular row of small spines on the dorsomesial surface of the third pereopod chela, as well as the length ratio of the third pereopod chela against carpus and merus. This study increases the total number of species described in the genus Odontozona to 21, nine of which occur the Indo-West Pacific. 

scholarly journals Review of the genus Vespina (Lepidoptera, Incurvariidae) with two new species from China and Japan

Zootaxa ◽  
2021 ◽  
Vol 4927 (2) ◽  
pp. 209-233
Author(s):  
TOSHIYA HIROWATARI ◽  
SADAHISA YAGI ◽  
ISSEI OHSHIMA ◽  
GUO-HUA HUANG ◽  
MIN WANG
Keyword(s):  
New Species ◽  
East Asia ◽  
Western Coast ◽  
Ryukyu Islands ◽  
Immature Stages ◽  
The Ryukyu Islands ◽  
Two New Species ◽  
The Usa ◽  
China And Japan ◽  
Warm Temperate

Asian species of the genus Vespina Davis, 1972 (Lepidoptera, Incurvariidae) are mainly reviewed. Vespina meridiana Hirowatari & Yagi sp. nov. from the Ryukyu Islands, Japan, and Vespina sichuana Hirowatari, Huang & Wang sp. nov. from Sichuan, China, are described. The previously known Vespina species are associated with plants from the Fagaceae family on the western coast of the USA and East Asia and with Sapindaceae (Aceraceae) in eastern Europe. The two new species described here are associated with Fagaceae and Myricaceae, respectively, in warm temperate areas in Asia. Vespina nielseni Kozlov, 1987, which was only known from East Asia, is newly recorded from South China. A checklist for the genus is provided herein. Morphological information of the immature stages of the two new species is partially provided. The absence or reduction of a female frenulum and presence of approximately 20 thin pseudofrenular bristles, the dorsoventrally flattened pupa, and the minute tergal spines scattered on abdominal segments 3–8 are considered as possible autapomorphies of Vespina. 

A new species of sardine, Sardinella electra (Teleostei: Clupeiformes: Clupeidae), from the Ryukyu Islands, Japan

Zootaxa ◽  
2019 ◽  
Vol 4565 (2) ◽  
pp. 274 ◽  
Author(s):  
HARUTAKA HATA ◽  
HIROYUKI MOTOMURA
Keyword(s):  
New Species ◽  
Black Spot ◽  
Gill Arch ◽  
Ryukyu Islands ◽  
Caudal Fin ◽  
The Third ◽  
Dorsal Fin ◽  
The Ryukyu Islands ◽  
Gill Raker ◽  
A New Species

A new species of sardine, Sardinella electra, is described on the basis of 18 specimens collected from the Ryukyu Islands, Japan. The new species closely resembles Sardinella hualiensis (Chu & Tsai 1958) in that both species have a caudal fin with black tips, a black spot on the dorsal-fin origin, and both have lateral scales with centrally continuous or overlapping longitudinal striae. However, the new species is distinguished from S. hualiensis by its higher total gill-raker counts on the first, second, third and fourth gill arches, and on the posterior face of the third gill arch (105–121, 107–120, 88–104, 65–82, and 25–31, respectively, vs. 87–107, 83–105, 67–90, 53–69, and 13–27), and in having scales with few perforations and lacking pores posteriorly (vs. scales with numerous perforations and pores on their posterior margins). 

A new Setacheres (Copepoda, Siphonostomatoida, Asterocheridae) associated with Ircinia felix (Duchassaing & Michelotti) (Porifera) from Brazil

Zootaxa ◽  
2017 ◽  
Vol 4363 (1) ◽  
pp. 129
Author(s):  
CAMILA C. BORGES ◽  
ELIZABETH G. NEVES ◽  
RODRIGO JOHNSSON
Keyword(s):  
New Species ◽  
First Record ◽  
Endopodal Segment ◽  
Distributional Pattern ◽  
Exopodal Segment ◽  
The Third ◽  
Distal Seta

Recent surveys of the copepod fauna associated with the sponge Ircinia felix (Porifera, Dictyoceratida) in Brazil resulted in the discovery of a new siphonostomatoid species belonging to a recently erected genus of Asterocheridae. Setacheres portobarrensis sp. nov. possesses a 21-segmented antennule, with 3 free distal segments, after the aesthetasc. The third exopodal segment of leg 3 shows a distal seta instead of a spine as in some other congeners. The new species shows several unique features on the third endopodal segment of the antenna, the mandibular stylet, the inner lobe of the maxillule, and setules and spinules located in specific regions of legs 1 to 4. Setacheres portobarrensis sp. nov. follows the same distributional pattern as its congeners, and this is the first record of a siphonostomatoid copepod associated with Ircinia felix. 

A taxonomic review of the genus Physopelta (Hemiptera: Heteroptera: Largidae) from Japan, Korea, and Taiwan, with a new record of Ph. parviceps from China

Zootaxa ◽  
2021 ◽  
Vol 4951 (3) ◽  
pp. 461-491
Author(s):  
JUN SOUMA ◽  
TADASHI ISHIKAWA
Keyword(s):  
New Species ◽  
New Record ◽  
Guangdong Province ◽  
Zhejiang Province ◽  
Ryukyu Islands ◽  
Taxonomic Review ◽  
The Ryukyu Islands ◽  
Two New Species ◽  
Central Taiwan ◽  
First Time

In this paper, we revised the physopeltine genus Physopelta Amyot & Serville, 1843 (Hemiptera: Heteroptera: Largidae) from Japan, Korea, and Taiwan. Five species were recognized and diagnosed, including two new species, Ph. (Neophysopelta) lutaspidata sp. nov. from northern and central Taiwan and Ph. (N.) fusciscutellata sp. nov. from the Ryukyu Islands, Japan and Taiwan, and three known species, Ph. (N.) gutta gutta (Burmeister, 1834), Ph. (N.) parviceps Blöte, 1931, and Ph. (N.) quadriguttata Bergroth, 1894. Physopelta (Neophysopelta) fusciscutellata sp. nov., was previously regarded as either of the two species, Ph. (N.) cincticollis Stål, 1863 and Ph. (N.) parviceps, for populations from Taiwan. Previous records of Ph. (N.) cincticollis from Japan proper and Korea, and Ph. (N.) slanbuschii (Fabricius, 1787) from the Ryukyu Islands were considered as misidentifications of Ph. parviceps. A key to facilitate the identification of the five species known in Japan, Korea, and Taiwan is provided. Additionally, Ph. (N.) parviceps is recorded from China (Guangdong Province and Zhejiang Province) for the first time. 

scholarly journals New bobtail squid (Sepiolidae: Sepiolinae) from the Ryukyu islands revealed by molecular and morphological analysis

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Gustavo Sanchez ◽  
Jeffrey Jolly ◽  
Amanda Reid ◽  
Chikatoshi Sugimoto ◽  
Chika Azama ◽  
...  
Keyword(s):  
Morphological Analysis ◽  
East Timor ◽  
Ryukyu Islands ◽  
Morphological Investigation ◽  
Ryukyu Archipelago ◽  
The Third ◽  
The Ryukyu Islands ◽  
Close Relationship ◽  
Microbe Interactions ◽  
Host Microbe Interactions

AbstractBobtail squid are emerging models for host–microbe interactions, behavior, and development, yet their species diversity and distribution remain poorly characterized. Here, we combine mitochondrial and transcriptome sequences with morphological analysis to describe three species of bobtail squid (Sepiolidae: Sepiolinae) from the Ryukyu archipelago, and compare them with related taxa. One Ryukyuan type was previously unknown, and is described here as Euprymna brenneri sp. nov. Another Ryukyuan type is morphologically indistinguishable from Sepiola parva Sasaki, 1913. Molecular analyses, however, place this taxon within the genus Euprymna Steenstrup, 1887, and additional morphological investigation led to formal rediagnosis of Euprymna and reassignment of this species as Euprymna parva comb. nov. While no adults from the third Ryukyuan type were found, sequences from hatchlings suggest a close relationship with E. pardalota Reid, 2011, known from Australia and East Timor. The broadly sampled transcriptomes reported here provide a foundation for future phylogenetic and comparative studies.

The Quasi-War in East Asia: Japan's Expedition to Taiwan and the Ryūkyū Controversy

1983 ◽  
Vol 17 (2) ◽  
pp. 257-281 ◽  
Author(s):  
Edwin Pak-Wah Leung
Keyword(s):  
East Asia ◽  
East Asian ◽  
Ryukyu Islands ◽  
Asian Countries ◽  
Political Status ◽  
The Ryukyu Islands ◽  
Japanese Subjects

AbstractThe 1870s witnessed mounting tension among East Asian countries. In 1874,. Japan sent an expeditionary force to Taiwan to punish the aborigines there who had, in 1871, killed fifty-four shipwrecked Ryūkyūans (Liu-ch'iuans). By doing so, according to many scholars today, Japan was able to claim retroactively that the Ryūkyūan castaways were legally Japanese subjects, thereby ending the Sino-Japanese dispute over the ambiguous political status of the Ryūkyū Islands (the Chūzan Kingdom of Ryūkyū paid tribute to both China and the Satsuma-han of Japan before the 18705).This paper is a reappraisal of this episode of the ‘Quasi-war’ in East Asia. By going into the Chinese, Japanese, Ryūkyūan, and Western sources, it unfolds some unknown events which directly and indirectly led to the Japanese decision to send forces to Taiwan, as well as the Chinese reactions. The conclusion of this paper refutes the customary view which holds that China had in 1874 ‘renounced her claim over Ryūkyū and yielded to the Japanese claim she had earlier disputed.’ As this paper will show, neither Soejima Taneomi nor Ōkubo Toshimichi had succeeded in securing any Chinese endorsement of Japan's sovereign right over Ryūky¯. Nor did the Sino-Japanese Treaty of 1874, concerning the settlement of the Taiwan crisis, legally settle the Ryūkyū problem, since Ryūky¯ was never mentioned in the Treaty. As a result, the issue continued to trouble Peking and Tokyo in the years that immediately followed.

Sign in / Sign up

Export Citation Format

Share Document