著者
Shizuma Yanagisawa Shimpei F. Hiruta Yositaka Sakamaki Satoshi Shimano
出版者
The Japanese Society of Systematic Zoology
雑誌
Species Diversity (ISSN:13421670)
巻号頁・発行日
vol.26, no.2, pp.145-151, 2021-06-17 (Released:2021-06-17)
参考文献数
23
被引用文献数
1

A new species from the cockroach genus Eucorydia Hebard, 1929 from Miyako-jima Island of the Nansei Islands in Southwest Japan was compared to six closely related congeners; E. yasumatsui Asahina, 1971; E. donanensis Yanagisawa, Sakamaki, and Shimano, 2020; E. tokaraensis Yanagisawa, Sakamaki, and Shimano, 2020; E. dasytoides (Walker, 1868); E. guilinensis Qiu, Che, and Wang, 2017; and E. pilosa Qiu, Che, and Wang, 2017. The new species Eucorydia miyakoensis Yanagisawa, Sakamaki, and Shimano, sp. nov. from Miyako-jima Island was characterized by a small overall male body length of 12.5–13.0 mm and tegmina with an uninterrupted orange transversal band in the middle, and a pair of orange pubescent patches at the base. Eucorydia yasumatsui, E. donanensis, E. tokaraensis, the zonata population of E. dasytoides, and E. miyakoensis were divided into five lineages in a maximum likelihood tree generated from a dataset concatenated from five molecular markers (two nuclear: 28SrRNA and histone H3, and three mitochondrial: COII, 12SrRNA, and 16SrRNA). We recognized E. miyakoensis as a distinct species, which was also supported by the pairwise genetic distances (3.4%–6.7%, K2P) of the COI sequences to the other Japanese Eucorydia species.
著者
Tobias Pfingstl Shimpei F. Hiruta Takamasa Nemoto Wataru Hagino Satoshi Shimano
出版者
The Japanese Society of Systematic Zoology
雑誌
Species Diversity (ISSN:13421670)
巻号頁・発行日
vol.26, no.1, pp.93-99, 2021-03-22 (Released:2021-03-22)
参考文献数
21
被引用文献数
2

We describe a new species of marine associated oribatid mite, Ameronothrus twitter Pfingstl and Shimano, sp. nov., from a wharf of fishing port (Choshi Outer Fishing Port), Chiba, Honshu, Japan. This species was spotted for the first time ever on photographs posted on Twitter. Ameronothrus twitter Pfingstl and Shimano, sp. nov. is characterized by a specific cuticular notogastral pattern consisting of distinct nodules that are fused to irregular ridges in the median anterior and the median posterior region. Additionally, it features a unique combination of fused lamellar keels, presence of primilateral setae on tarsus I, presence of dorsal companion setae on genu I, II, III and all tibiae and tarsal distal setae ending with a small nodule. Ameronothrus twitter Pfingstl and Shimano, sp. nov. is the second species of this genus found on Japanese islands, which represents the southernmost occurrences of this taxon in the Asian Pacific region.
著者
Taiga Kato Mitsuo Takano Takafumi Nakano Satoshi Shimano
出版者
The Japanese Society of Systematic Zoology
雑誌
Species Diversity (ISSN:13421670)
巻号頁・発行日
vol.28, no.1, pp.23-30, 2023-01-12 (Released:2023-01-12)
参考文献数
44

The taxonomic status of millipedes of the genus Spirobolus Brandt, 1833, referred to as “Yaeyama-maruyasude” from the Yaeyama Islands, Ryukyu Islands, Japan, was unresolved. We assess the taxonomic status of these Yaeyama Spirobolus sp. using an integrated morphological and molecular approach, and describe them as a new species, S. akamma sp. nov., for which partial sequences of the nuclear 28S ribosomal RNA, mitochondrial cytochrome c oxidase subunit I, and 16S ribosomal RNA markers are provided. This new species differs from continental China and Taiwan endemic congeners in anterior gonopod morphology (in having an elongate and subtriangular coxa, and a pentagonal mesal sternal process), posterior gonopod morphology (in having a coronoid prefemoral endite with rounded distal end, and an elongate telopodite), and in having four serrations on the cyphopod lateral flange.
著者
Shizuma Yanagisawa Yositaka Sakamaki Sopark Jantarit Satoshi Shimano
出版者
The Japanese Society of Systematic Zoology
雑誌
Species Diversity (ISSN:13421670)
巻号頁・発行日
vol.26, no.2, pp.191-195, 2021-08-06 (Released:2021-08-06)
参考文献数
7

Specimens of the genus Eucorydia Hebard, 1929 from Chiang Mai, northern Thailand, were compared with eight closely similar congeners: E. aenea (Brunner von Wattenwyl, 1865), E. dasytoides (Walker, 1868), E. yunnanensis Woo, Guo, and Feng, 1986, E. pilosa Qiu, Che, and Wang, 2017, E. guilinensis Qiu, Che, and Wang, 2017, E. tangi Qiu, Che, and Wang, 2017, E. linglong Qiu, Che, and Wang, 2017, and E. tokaraensis Yanagisawa, Sakamaki, and Shimano, 2020, and turned out to be a different species from eight congeners. This species from Thailand is characterized by the specific male genitalia shape: right phallomere 2 (R2) slightly elongated, the basal left area of R2 forming a triangular protrusion, and the basal half of left phallomere 7 (L7) protruded to the left with long spatulate distal half and with a beak-like apex. This species is also characterized by the tegmina containing three orange markings in the middle, and with a pair of orange markings at its base. Based on the above, this species is described as a new species, Eucorydia asahinai sp. nov.
著者
Tsukasa Waki Mizuki Sasaki Hajime Matsubara Satoshi Shimano
出版者
The Japanese Society of Systematic Zoology
雑誌
Species Diversity (ISSN:13421670)
巻号頁・発行日
vol.26, no.2, pp.273-279, 2021-10-07 (Released:2021-10-07)
参考文献数
29
被引用文献数
1

The feather mite Pseudalloptinus milvulinus (Trouessart, 1884) was collected from feathers of the Black Kite Milvus migrans (Boddaert, 1783) in Ishikawa Prefecture, Japan, in 2019. The identification of this mite was based on the form and arrangement of setae on the idiosoma and aggenital region. This study is the first report of this mite species and the genus Pseudalloptinus Dubinin, 1956 in Japan.
著者
Tsukasa Waki Satoshi Shimano Takahiro Asami
出版者
The Japanese Society of Systematic Zoology
雑誌
Species Diversity (ISSN:13421670)
巻号頁・発行日
vol.24, no.1, pp.11-15, 2019-05-01 (Released:2019-05-01)
参考文献数
19
被引用文献数
1

The parasitic mite Riccardoella (Proriccardoella) triodopsis Fain and Klompen, 1990 was sampled from two localities in Chiba prefecture, Japan. The sampled mites were identified based on palps and leg chaetotaxy and structure of famulus on tibia I. This study is represented by the second record of R. triodopsis inhabiting the pulmonate snail and the first discovery in Japan.
著者
Takehiro Kazama Seiji Ishida Satoshi Shimano Jotaro Urabe
出版者
The Plankton Society of Japan, The Japanese Association of Benthology
雑誌
Plankton and Benthos Research (ISSN:18808247)
巻号頁・発行日
vol.7, no.3, pp.111-125, 2012-08-25 (Released:2013-06-18)
参考文献数
57
被引用文献数
7 6

Tintinnid ciliates have been traditionally classified according to morphological and morphometric features of the lorica. To examine if the morphological characteristics of loricae reflect the phylogenetic relationships, we collected 23 tintinnid morphospecies (11 genera) and reconstructed phylogenetic trees based on 84 partial sequences of nuclear small subunit rRNA (SSrRNA) gene fragments of 44 morphospecies from a total of eight families (55 sequences from this study, and 29 sequences from the literature). We found that tintinnid ciliates could be classified into six clades consisting of five major clades. While one clade consisted of one family, each of the other five clades consisted of more than two families. Although two families were found only in one clade, the remaining six families were found in more than two clades. In addition, each of six morphospecies was found in more than two major clades, indicating that they are polyphyletic. Principal coordinate analysis showed that morphology of the lorica overlapped substantially between the clades. These results imply that most of the morphological and morphometric traits of marine tintinnid species do not reflect SSrRNA genetic distances even at family levels. It is necessary to identify new characteristics that reflect phylogenetic relationships robustly.