著者

Takao Naitô

出版者

National Museum of Nature and Sciece

雑誌

国立科学博物館研究報告A類(動物学) (ISSN:18819052)

巻号頁・発行日

vol.48, no.3, pp.119-138, 2022-08-22 (Released:2022-08-22)

参考文献数

30

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A group of eyeless trechini ground beetles’ genera distributed in western Japan, the Rakantrechus Complex, is reviewed, and a key to this Complex and a key to its component genera are provided. A new species of the genus Nipponaphaenops S. Uéno, 1971, N. kojii sp. nov. is described under the new subgenus Tanakaphaenops subgen. nov. Additionally, new taxonomic treatment Rakantrechus (Iyotrechus) hisamatsui (S. Uéno et Naitô, 2009) comb. nov. is proposed. Keys to the subgenera of Rakantrechus and Nipponaphaenops are provided. Revised definition of the genus Nipponaphaenops is proposed.

著者

Hiroshi Namikawa Mariko Kawamura

出版者

National Museum of Nature and Sciece

雑誌

国立科学博物館研究報告A類(動物学) (ISSN:18819052)

巻号頁・発行日

vol.47, no.4, pp.157-161, 2021-11-22 (Released:2021-11-22)

参考文献数

4

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The polyps of Koellikerina bouilloni Kawamura and Kubota, 2005 were discovered growing on the shell of the gastropod Nassarius festivus (Powys, 1835) collected from Isozaki, Hitachinaka, Ibaraki, Japan. This hydrozoan species was so far known only from the medusae collected in Tanabe Bay, Wakayama, Japan (type locality) and Papua New Guinea. The discovery of the polyp and the rearing of the medusae permitted us to complement the description of this species.

著者

Kyoji Fujiwara Toshiyuki Suzuki Hiroyuki Motomura

出版者

National Museum of Nature and Sciece

雑誌

国立科学博物館研究報告A類(動物学) (ISSN:18819052)

巻号頁・発行日

vol.48, no.4, pp.229-233, 2022-11-22 (Released:2022-11-22)

参考文献数

8

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A single specimen (14.9 mm in standard length) of Trimma panemorfum Winterbottom and Pyle, 2022, a species recently described on the basis of three specimens from deep coral reefs off Palau, was collected from Okinawa Island, Ryukyu Islands, southern Japan. A description of the Japanese specimen, the first Japanese record of T. panemorfum, is provided, and the new standard Japanese name “Kosumosu-benihaze” proposed for the species.

著者

Tadasu K. Yamada Tint Tun Nyo-Nyo Tun Yin Yin Toke Deliver Htwe Mu Mu Aung Yuko Tajima

出版者

National Museum of Nature and Sciece

雑誌

国立科学博物館研究報告A類(動物学) (ISSN:18819052)

巻号頁・発行日

vol.48, no.4, pp.235-247, 2022-11-22 (Released:2022-11-22)

参考文献数

39

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Balaenopterid whale specimens preserved in several institutions totaling 19 were examined. Specimens identified to species level were 14, i.e. 3 Balaenoptera musculus, 6 B. edeni, and 5 B. omurai. The remaining 5 specimens were not identified. The existence of B. omurai from Myanmar waters was confirmed based on the morphological characters of the skull and the first rib. This article is the first confirmation of this species in Myanmar. Among the two already “confirmed” species, B. musculus was identified by Smith et al. (1997) based on the actual specimen in the Natural History Museum, however for B. edeni, the specimens we examined were not observed for species identification and no preceding work reported the existence of B. edeni, except for the type specimen collected in Mon state in 1871 and now preserved in the Indian Museum, Kolkata (Anderson, 1879).

著者

Hideho Hara Shinichi Ibuki Akihiko Shinohara

出版者

National Museum of Nature and Sciece

雑誌

国立科学博物館研究報告A類(動物学) (ISSN:18819052)

巻号頁・発行日

vol.49, no.2, pp.57-74, 2023-05-22 (Released:2023-05-22)

参考文献数

46

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Nematus yokohamensis (Konow, 1895) is redescribed. Pristiphora geniculata (Hartig, 1840) is recorded from Japan (Hokkaido and Honshu) for the first time. New distribution records within Japan are Nematus yokohamensis from Kyushu and Pristiphora conjugata (Dahlbom, 1835) from Hokkaido. New host plant records are given for Abia fasciata (Linné, 1758), Athalia yanoi Takeuchi, 1952, Macrophya fascipennis Takeuchi, 1933, M. katayamai Shinohara, 2020, M. timida Smith, 1874, Mesoneura shishikuensis Togashi, 1965, Nematus japonicus (Takeuchi, 1921), N. yokohamensis, Perineura okutanii Takeuchi, 1959, P. pictipennis Takeuchi, 1959, Pristiphora geniculata, Profenusa thomsoni (Konow, 1886) and Taxonus japonicus Takeuchi, 1929. Additional information on the larval food plant is given for Nesoselandria morio (Fabricius, 1781). The larvae of Fagineura glabella Hara, 2022, Macrophya fascipennis, M. katayamai, M. timida, Mesoneura shishikuensis, Nematus yokohamensis, Perineura okutanii, P. pictipennis and Taxonus japonicus are figured and briefly described for the first time.

著者

Masatsune Takeda Shane T. Ahyong Naoya Ohtsuchi Hironori Komatsu

出版者

National Museum of Nature and Sciece

雑誌

国立科学博物館研究報告A類(動物学) (ISSN:18819052)

巻号頁・発行日

vol.48, no.4, pp.147-191, 2022-11-22 (Released:2022-11-22)

参考文献数

165

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The crabs collected by the RV Hakuhō Maru (KH-72-1 cruise) in the South China Sea are recorded as the fourth part following the previous three parts of the series (Sulu Sea and Sibutu Passage, Timor Sea, and Sahul Shelf). They are mostly shallow water inhabitants, representing 35 species of 31 genera in 13 families, with two new species of the family Epialtidae, Naxioides elongatus sp. nov. and Samadinia hakuhoae sp. nov. Taxonomic comments are given for each species. In this fourth and final part, biogeographic notes on all the species collected by RV Hakuhō Maru (KH-72-1 cruise) are briefly summarized, together with a list of the crabs collected by the RV Hakuhō Maru (KH-73-2 cruise) in the South China Sea.

著者

Hiroshi Namikawa

出版者

National Museum of Nature and Sciece

雑誌

国立科学博物館研究報告A類(動物学) (ISSN:18819052)

巻号頁・発行日

vol.48, no.1, pp.1-4, 2022-02-22 (Released:2022-02-22)

参考文献数

9

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In addition to polyps of the anthoathecate hydroid Koellikerina bouilloni previously reported exclusively on old, eroded shells of live gastropods (Nassarius festivus) in Ibaraki Prefecture, Japan, the polyps of three additional epizoic anthoathecate hydroid species (Dicoryne conybearei, Stylactaria misakiensis and Leuckartiara sp.) were found on similar condition N. festivus shells in different localities in Japan. Because polyps of these hydroid species were not found on fresh shells, it is suggested that N. festivus could avoid colonization by the hydroids whilst occupying fresh shells, but not older eroded ones, the latter therefore providing a suitable substrate for the hydroid polyps.

著者

Akihiko Shinohara Akihiko Watanabe

出版者

National Museum of Nature and Sciece

雑誌

国立科学博物館研究報告A類(動物学) (ISSN:18819052)

巻号頁・発行日

vol.48, no.1, pp.25-27, 2022-02-22 (Released:2022-02-22)

参考文献数

5

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A collection record of Cephalcia antennata Shinohara, 1994, from Ochiai-toge, Tokushima Prefecture, Shikoku, is given. This is the second specimen of the species ever known and represents the first distribution record from Shikoku. Corrections are made to the description and key by Shinohara (1994, 2020).

著者

Hideho Hara Shinichi Ibuki Akihiko Shinohara

出版者

National Museum of Nature and Sciece

雑誌

国立科学博物館研究報告A類(動物学) (ISSN:18819052)

巻号頁・発行日

vol.47, no.4, pp.163-188, 2021-11-22 (Released:2021-11-22)

参考文献数

76

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Two larch sawflies, Euura imperfecta (Zaddach, 1876) and E. itoi (Okutani, 1955) (Tenthredinidae), are redescribed. New distribution records are: Arge similis (Snellen van Vollenhoven, 1860) (Argidae) from Amami-Oshima Island and Phylloecus etorofensis (Takeuchi, 1955) (Cephidae), Apareophora nebuta Togashi, 1964, Ardis pallipes (Serville, 1823), Eriocampopsis subtruncata Takeuchi, 1952, Eutomostethus pumicosus Seiyama, 1981, Stethomostus babai Togashi, 1984 and Tomostethus nigritus (Fabricius, 1804) (Tenthredinidae) from Hokkaido. Information on the distribution of Phymatocera nipponica Togashi, 1958 (Tenthredinidae) is given. New host records are Rosa multiflora Thunb. (Rosaceae) for Sterictiphora nipponica Takeuchi, 1939 (Argidae), Alnus japonica (Thunb.) Steud. (Betulaceae) and Juglans mandshurica Maxim. var. sachalinensis (Komatsu) Kitam. (Juglandaceae) for Tremex apicalis Matsumura, 1912 (Siricidae), Actinidia polygama (Siebold et Zucc.) Planch. ex Maxim. (Actinidiaceae), Symplocarpus renifolius Schott ex Tzvelev. (Araceae) and Impatiens textorii Miq. (Balsaminaceae) for Aglaostigma albicinctum (Takeuchi, 1953) (Tenthredinidae), Sanguisorba officinalis L. (Rosaceae) for Allantus meridionalis (Takeuchi, 1933) (Tenthredinidae), Quercus serrata Murray (Fagaceae) for Apethymus kunugi Togashi, 2005 (Tenthredinidae), Sanguisorba officinalis L. (Rosaceae) for Corymbas nipponica Takeuchi, 1936 (Tenthredinidae), Alnus hirsuta (Spach) Turcz. ex Rupr. var. hirsuta (Betulaceae) for Masaakia longivaginata Takeuchi, 1950 (Tenthredinidae), Rubus hirsutus Thunb. (Rosaceae) for Metallus albipes (Cameron, 1875) (Tenthredinidae), Rubus microphyllus L.f. (Rosaceae) for Metallus pumilus (Klug, 1816) (Tenthredinidae), Rubus parvifolius L. (Rosaceae) for Monophadnoides montanus Togashi, 1980 (Tenthredinidae) and Corylus sieboldiana Blume var. sieboldiana (Betulaceae) for Pristiphora fulviceps Takeuchi, 1933 (Tenthredinidae), Actinidia polygama (Siebold et Zucc.) Planch. ex Maxim. (Actinidiaceae) and Glechoma hederacea L. subsp. grandis (A. Gray) H. Hara (Lamiaceae) for Siobla ferox (Smith, 1874) (Tenthredinidae), Impatiens textorii Miq. (Balsaminaceae) and Circaea mollis Siebold et Zucc. (Onagraceae) for Siobla japonica Shinohara, Wei & Niu, 2013 (Tenthredinidae) and Agrimonia pilosa Ledeb. var. japonica (Miq.) Nakai (Rosaceae) for Taxonus shinoharai Togashi, 2009 (Tenthredinidae). Information on the host plants of Strongylogaster moiwana Matsumura, 1912 (Tenthredinidae) is given. The larvae of Sterictiphora nipponica, Aglaostigma albicinctum, Allantus meridionalis, Apethymus kunugi, Corymbas nipponica, Masaakia longivaginata, Monophadnoides montanus, Siobla ferox, Siobla japonica, Strongylogaster moiwana and Taxonus shinoharai are briefly described and their color photographs are given for the first time.

著者

Hidehiko Saito Tadasu K. Yamada Yuko Tajima

出版者

National Museum of Nature and Sciece

雑誌

国立科学博物館研究報告A類(動物学) (ISSN:18819052)

巻号頁・発行日

vol.47, no.3, pp.135-155, 2021-08-20 (Released:2021-08-20)

参考文献数

59

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The right forelimb of a western gorilla (Gorilla gorilla) was dissected with particular attention to the motor function of fingers of this species. The anatomical structure of the forearm and hand of our specimen of gorilla is not much different from that of the human. The palmar aponeurosis is absent. Ligamentous fibers, instead, extend to the palm from the flexor retinaculum to form the ligamentous septa along the flexor tendons. The short thumb seems to be carefully calculated to fulfill both roles of locomotion and feeding. The underdeveloped flexor pollicis longus muscle bifurcates from the flexor digitorum profundus muscle of the index finger. The extensor indicis is also underdeveloped; its tendon does not reach the index finger but attaches to the wrist. The extensor apparatus of the fingers composed of both the extrinsic and intrinsic systems is as well developed as in the human hand. During knuckle walking with the metacarpophalangeal joints in extension and the proximal interphalangeal joints in deep flexion, the former joint of each finger seems to be stabilized with integrated functions of the finger extensor, interosseous and lumbrical muscles, and sagittal bands as well as the groove at the metacarpal head. The ulnar antebrachial branch of the median nerve with a fine motor communicating branch from the ulnar nerve innervates the ulnar intrinsic muscles of the hand, which are innervated by the deep branch of the ulnar nerve in the human.

著者

Akihiko Shinohara David R. Smith

出版者

National Museum of Nature and Sciece

雑誌

国立科学博物館研究報告A類(動物学) (ISSN:18819052)

巻号頁・発行日

vol.47, no.1, pp.1-5, 2021-02-22 (Released:2021-02-22)

参考文献数

14

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A xiphydriid woodwasp, Indoxiphia prima Smith, 2019, previously known only from Taiwan, is newly recorded from Ashizuri-misaki (Shikoku), Nakanoshima Island (Tokara Islands) and Amami-oshima Island, southern Japan. Its taxonomic characters are summarized, and the species is compared with some other Japanese xiphydriids. This is one of a few xiphydriid species showing a peculiar distribution pattern confined to southeastern coastal areas in Japan. This distribution pattern may have been formed at least partly as a result of dispersal by marine drift.