Two new species of freshwater crab (Crustacea: Decapoda: Potamidae) from Tokashiki Island, central Ryukyu Islands, Japan

2007 ◽  
Vol 5 (4) ◽  
pp. 409-415 ◽  
Author(s):  
Tohru Naruse ◽  
Ryoko D. Segawa ◽  
Tadashi Aotsuka
Keyword(s):  
New Species ◽  
Ryukyu Islands ◽  
Freshwater Crab ◽  
Two New Species

Two new species of the freshwater-crab genus Demanietta Bott, 1966 (Decapoda: Brachyura: Potamidae) from southern Myanmar

2020 ◽  
Author(s):  
Bo-Yang Shi ◽  
Xiao-Yong Chen ◽  
Hong-Ying Sun
Keyword(s):  
New Species ◽  
16S Rdna ◽  
New Taxa ◽  
Molecular Analysis ◽  
Systematic Position ◽  
Freshwater Crab ◽  
Two New Species ◽  
Mitochondrial 16S Rdna

Abstract We describe two new species of the freshwater-crab genus Demanietta  Bott, 1966 from Tanintharyi (Tenasserim) division, southern Myanmar (Burma), Demanietta liui  sp. nov. and Demanietta lenya  sp. nov.  Demanietta liui  sp. nov. is morphologically most similar to D. thagatensis  Rathbun, 1904 and D. khirikhan  Yeo, Naiyanetr & Ng, 1999; D. lenya  sp. nov. appears close to D. manii  Rathbun, 1904, D. merguensis  Bott, 1966, and D. nakhonsi  Yeo, Naiyanetr & Ng, 1999. The two new species are easily distinguished from their most similar congeners in the shape of the external orbital tooth, epibranchial tooth, and male first gonopod. Molecular analysis based on partial mitochondrial 16S rDNA also supports the systematic position of the new taxa.

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. 

Discoveries of the genera Baeochila and Idiocysta from Japan, with descriptions of two new species (Hemiptera: Heteroptera: Tingidae)

Zootaxa ◽  
2020 ◽  
Vol 4731 (3) ◽  
pp. 388-402 ◽  
Author(s):  
JUN SOUMA
Keyword(s):  
New Species ◽  
Host Plant ◽  
Ryukyu Islands ◽  
Lace Bug ◽  
Distribution Ranges ◽  
The Ryukyu Islands ◽  
Two New Species ◽  
First Time ◽  
Hedera Rhombea ◽  
Host Plant Relationships

Two lace bug genera, Baeochila Drake & Poor, 1937 and Idiocysta China, 1930 (Hemiptera: Heteroptera: Tingidae) are recorded from Japan for the first time, and two new species, B. horvathi sp. nov. and I. takarai sp. nov., are described. The former was collected from the vines of Hedera rhombea (Miq.) Bean (Araliaceae) and the bark of Trachycarpus fortunei (Hook.) H.Wendl. (Arecaceae) in suburbanized areas of Honshu, Shikoku and Kyushu, and the latter was collected from the leaves of Freycinetia formosana Hemsl. (Pandanaceae) in the laurilignosa ecosystem of the Ryukyu Islands. The distribution ranges and host plant relationships of the two new species are discussed. Keys to all species of the two genera and photographs of living individuals for the new species are also presented. 

The genus Microptila Ris (Trichoptera, Hydroptilidae) in Japan

Zootaxa ◽  
2017 ◽  
Vol 4232 (1) ◽  
pp. 104
Author(s):  
TOMIKO ITO
Keyword(s):  
New Species ◽  
New Records ◽  
Ryukyu Islands ◽  
Oriental Region ◽  
Southern Japan ◽  
Two New Species ◽  
Palearctic Species

The taxonomy of the genus Microptila Ris in Japan is revised. Microptila orienthula Kjærandsen and Ito, 2009, the only East Palearctic species in the genus, is redescribed with new records and two new species, M. genka sp. nov. and M. nakama sp. nov., are described for adults from Ryukyu Islands, far southern Japan, in the Oriental region. 

Four species of Olethreutinae (Lepidoptera : Tortricidae) associated with viviparous seedlings of the mangrove Rhizophoraceae in the Ryukyu Islands, Japan

2003 ◽  
Vol 17 (1) ◽  
pp. 75 ◽  
Author(s):  
Furumi Komai ◽  
Yoshitsugu Nasu
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Host Preference ◽  
Ryukyu Islands ◽  
Kandelia Candel ◽  
Rhizophora Mucronata ◽  
The Ryukyu Islands ◽  
Two New Species ◽  
Mangrove Environment ◽  
Bruguiera Gymnorhiza

Four olethreutine species, including two new species described herein, are associated with the fruits and seedlings of Rhizophoraceae in the Ryukyu Islands: Cryptophlebia horii Kawabe feeds on Bruguiera gymnorhiza (L.) Lam.; C. amamiana, sp. nov. feeds on Kandelia candel (L.) Druce; C. palustris, sp. nov. feeds on Rhizophora mucronata Lam.; and Eucosma coniogramma Clarke (= Eucosma okubiensis Kawabe, syn. nov, herein newly established as a junior synonym) feeds on Bruguiera gymnorhiza. Adults, larvae, and genitalia are diagnosed and illustrated for each species, and geographic distribution and information on biology are provided. In addition, we discuss Cryptophlebia species associated with mangroves worldwide, host preference, and adaptations to the mangrove environment.

Two new species of the genus Actumnus Dana, 1851 (Decapoda, Brachyura, Pilumnidae) from the Ryukyu Islands, southwest Japan

Crustaceana ◽  
2017 ◽  
Vol 90 (7-10) ◽  
pp. 1251-1265 ◽  
Author(s):  
Masatsune Takeda ◽  
Hironori Komatsu
Keyword(s):  
New Species ◽  
Dorsal Surface ◽  
Ryukyu Islands ◽  
Southwest Japan ◽  
The Ryukyu Islands ◽  
Two New Species

Two new species of the crab genusActumnusDana, 1851 (family Pilumnidae) are reported from the Ryukyu Islands, southwest Japan.Actumnus tsurukaiisp. nov. is similar toA. squamosus(De Haan, 1835),A. setifer(De Haan, 1835) andA. forficigerus(Stimpson, 1858) in possessing a poorly defined dorsal surface of the carapace with a coat of short setae, but differs in having relatively larger, fewer and more widely spaced conical granules or tubercles on the outer surfaces of the palms of both chelipeds.Actumnus uformissp. nov. is similar toA. dorsipesStimpson, 1858 andA. granotuberosusGarth & Kim, 1983 in having a prominently areolated dorsal surface of the carapace with a soft thick tomentum, but can be distinguished by the stronger areolation and the distinctly U-shaped protogastric region.

On Two New Species of Geothelphusa Stimpson, 1858 (Decapoda, Brachyura, Potamidae) From the Ryukyu Islands, Japan

Crustaceana ◽  
1998 ◽  
Vol 71 (7) ◽  
pp. 778-784 ◽  
Author(s):  
J.-Y. Shy ◽  
Peter K.L. Ng
Keyword(s):  
New Species ◽  
Type Locality ◽  
Ryukyu Islands ◽  
Freshwater Crabs ◽  
Southern Japan ◽  
The Ryukyu Islands ◽  
Two New Species

AbstractTwo new species of potamid freshwater crabs of the genus Geothelphusa are described from the Ryukyu Islands in southern Japan. Although both G. shokitai sp. nov. and G. minei sp. nov. are allied to G. candidiensis (type locality Taiwan), they differ from that species and from each other in the form of their carapaces, ambulatory leg proportions, and structure of their male first pleopods.

scholarly journals Two new species of the family Leptochitonidae (Mollusca: Polyplacophora) from the tropical and subtropical shallow waters of the West Pacific

2020 ◽  
Vol 24 (1/2) ◽  
pp. 19-36
Author(s):  
Boris I. Sirenko ◽  
Hiroshi Saito
Keyword(s):  
New Species ◽  
Papua New Guinea ◽  
New Guinea ◽  
The Philippines ◽  
Shallow Waters ◽  
Ryukyu Islands ◽  
The West ◽  
West Pacific ◽  
The Family ◽  
Two New Species

Two new species of the family Leptochitonidae, Leptochiton pumilus sp. nov. and Terenochiton nomurai sp. nov. are described from the tropical and subtropical shallow waters of the West Pacific. L. pumilus from the Philippines and Papua New Guinea has a net-like sculpture on the shell which is rather rare feature in the genus. In this genus, so far only three species have hitherto been known in the tropical shallow waters, in contrast to more than 130 other extant species which are living in the deep cold waters and high latitudes. T. nomurai from Ryukyu Islands is the second representative of the genus Terenochiton Iredale, 1914 which was recently reinstated for Leptochiton norfolcensis (Hedley et Hull, 1912), and is characterized by having rudiments of the insertion plates in all valves. T. nomurai closely resembles the type species, but differs in the arrangement of the aesthete pores on the granules of the tegmentum, and less developed rudiments of the insertion plates. Key words: chitons, Leptochiton, Terenochiton, new species, the Philippines, Japan, Papua New Guinea. Описаны два новых вида семейства Leptochitonidae, Leptochiton pumilus sp. nov. и Terenochiton nomurai sp. nov. из тропических и субтропических мелководий западной Пацифики. L. pumilus c Филиппин и Папуа – Новой Гвинеи имеет сетчатовидную скульптуру на раковине, что является довольно редким признаком в этом роде. В этом роде только три вида известны до настоящего времени в тропических мелководьях, в противоположность более чем 130 другим современным видам, которые живут в глубоких холодных водах и в высоких широтах. T. nomurai из островов Рюкю является вторым представителем рода Terenochiton Iredale, 1914, который был недавно восстановлен для Leptochiton norfolcensis (Hedley et Hull, 1912) и характеризуется наличием рудиментов инсерционных пластинок на всех щитках. T. nomurai сходен с типовым видом рода, но отличается расположением пор эстетов на зернах тегментума и менее развитыми рудиментами инсерционных пластинок. Ключевые слова: хитоны, Leptochiton, Terenochiton, новые виды, Филиппины, Япония, Папуа Новая Гвинея.

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