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Hexapleomera urashima Tanabe 2017
No full textHexapleomera urashima Tanabe et al., 2017 [Japanese name: Urashima-tanaisu] Figure 1A Hexapleomera urashima Tanabe et al., 2017, 146–160, figs 2–6; Kakui & Tanabe 2018, 6, fig. 2. Material examined. Type material: Holotype (female, ICHUM-5381), allotype (male, ICHUM-5382), and five female and five male paratypes (ICHUM-5383–5387, 5389–5393); for detailed information on these specimens, see Tanabe et al. (2017). Other material: one female (ICHUM-5848; BL 2.54 mm, CW 0.58 mm), seven slides and one vial, INSD accession number LC474839, collected from epiphytic algae on a loggerhead sea turtle bycaught in a set-net (left tag no. 13445; SCL 59.5 cm, sex indeterminate), Funakoshi Bay, Iwate Prefecture (39°24'48"N 142°01'23"E), 2.viii.2017, by C. Kinoshita and T. Fukuoka; one female (ICHUM-5950; BL 3.50 mm, CW 0.83 mm), one vial, INSD accession number LC485015, collected from epiphytic algae on a nesting loggerhead sea turtle (left tag no. Y7115; SCL 85.3 cm, female) on Nagata-hama, Yakushima Island, southern Japan (30°24.933'N, 130°26.352'E), 30.vi.2016, by Y. Tanabe. Amended diagnostic characteristics. Labium with palp fused to outer lobe. Maxilliped with coxa bearing two setae; endite with two tiny dorso-subdistal and two distal spiniform setae. Cheliped with 5–7 dorsodistal simple setae on carpus; region between bases of dactylus and fixed finger with five or six simple setae. Propodus of pereopod 1 with inner subdistal plumose seta. Pleopodal rami with slight pigmentation (retained in ethanol). Basal article of pleopod 3 with two outer setae. Uropod with four articles, including basal article. Supplemental information on female and male morphology. Pleopodal rami with slight pigmentation (retained in ethanol; Fig. 1A). Variation and stability. We reexamined the holotype, allotype, and five female and five male paratypes, and observed one additional specimen of H. urashima. Table 3 lists the states for eight characters listed in Tanabe et al. (2017) and three characters we added. We did not check following four characters, which showed variation among specimens in Tanabe et al. (2017): the numbers of setae i) on the maxillipedal basis; ii) in the region posterior to eye; iii) in the inner region of the endopod of pleopods 1, 2, and 3; and iv) on the maxillular palp. In addition to the four stable characters presented in Tanabe et al. (2017), our observation of the type specimens and one additional specimen (seven females and six males in total) revealed: i) a single inner subdistal plumose seta on the pereopod-1 propodus; ii) 5–6 setae in the region between the bases of the chelipedal dactylus and fixed finger; iii) 5–7 setae in the dorsodistal region of the chelipedal carpus; iv) five spiniform setae on the carpus of pereopods 4–6; and v) slight pigmentation on the pleopodal rami (Fig. 1A). Genetic information. A partial COI sequence (655 nt, translating to 218 amino acids) for one H. urashima specimen collected off the eastern coast of Iwate Prefecture (ICHUM-5848; INSD accession number LC474839) is identical to one of two haplotype sequences reported for the species by Tanabe et al. (2017) (INSD accession number LC322243). A partial 18S sequence (1942 nt) was determined in one specimen collected from Yakushima Island (ICHUM-5950; INSD accession number LC485015). Distribution. This species is known from the surface of carapaces of loggerhead sea turtles (Caretta caretta) collected at Yakushima Island (Tanabe et al. 2017) and off the eastern coast of Iwate Prefecture (this study), and from among the fouling community on a tether line on Yakushima Island (Kakui & Tanabe 2018). Remarks. Tanabe et al. (2017) did not report which specimen was used for illustrations of the cheliped (fig. 3M, M1); we confirmed that these were based on the holotype female. After a detailed reexamination of this species, we amend the setal position name for setae on the propodal palm. The five setae in the region between the bases of the dactylus and fixed finger of the cheliped in the holotype correspond to i) four outer simple setae at the insertion of the dactylus, and ii) one dorsoproximal simple seta on the cutting surface (Tanabe et al. 2017: p. 150). The six setae in the same region of the allotype correspond to i) five outer simple setae at the insertion of the dactylus, and ii) one dorsoproximal (sic; actually subdistal) simple seta on the propodal palm (Tanabe et al. 2017: p. 156).Published as part of Tanabe, Yuki & Kakui, Keiichi, 2019, Two Hexapleomera species from Japan, with a new species description and discussion of phylogenetic relationships within Hexapleomera (Crustacea: Tanaidacea), pp. 318-336 in Zootaxa 4648 (2) on pages 321-322, DOI: 10.11646/zootaxa.4648.2.7, http://zenodo.org/record/335490
Revision of the millipede genus Parafontaria VerhoeV, 1936 (Diplopoda, Xystodesmidae)
No full textTanabe, T. (2002): Revision of the millipede genus Parafontaria VerhoeV, 1936 (Diplopoda, Xystodesmidae). Journal of Natural History 36 (18): 2139-2183, DOI: 10.1080/00222930110085610, URL: http://www.tandfonline.com/doi/abs/10.1080/0022293011008561
FIG. 16. Parafontaria crenata Shinohara, 1986 in Revision of the millipede genus Parafontaria VerhoeV, 1936 (Diplopoda, Xystodesmidae)
No full textFIG. 16. Parafontaria crenata Shinohara, 1986, left paranota of 6th segment, dorsal views. (A) Female paratype. (B) Female from Honzaka-tôge Pass, Toyohashi-shi, Aichi Prefecture.Published as part of Tanabe, T., 2002, Revision of the millipede genus Parafontaria VerhoeV, 1936 (Diplopoda, Xystodesmidae), pp. 2139-2183 in Journal of Natural History 36 (18) on page 2161, DOI: 10.1080/00222930110085610, http://zenodo.org/record/529922
FIG. 16. Parafontaria crenata Shinohara, 1986 in Revision of the millipede genus Parafontaria VerhoeV, 1936 (Diplopoda, Xystodesmidae)
No full textFIG. 16. Parafontaria crenata Shinohara, 1986, left paranota of 6th segment, dorsal views. (A) Female paratype. (B) Female from Honzaka-tôge Pass, Toyohashi-shi, Aichi Prefecture.Published as part of Tanabe, T., 2002, Revision of the millipede genus Parafontaria VerhoeV, 1936 (Diplopoda, Xystodesmidae), pp. 2139-2183 in Journal of Natural History 36 (18) on page 2161, DOI: 10.1080/00222930110085610, http://zenodo.org/record/529922
Late Cretaceous record of large soft-bodied coleoids based on lower jaw remains from Hokkaido, Japan
No full textTanabe, K., Misaki, A., and Ubukata, T. 2015. Late Cretaceous record of large soft-bodied coleoids based on lower ja
Letter, [Author unclear] to Paulina T. Merritt
No full textHandwritten letter to Paulina Merritt from an unknown author, October 1, 1876.
Degenerate integrodifferential equations of parabolic type with Robin boundary conditions: Lp-theory
No full textThe aim of this paper consists in solving integrodifferential problem of type (1.1)–(1.2) that may degenerate both in space and time. More precisely, Mp(t)t∈[0,T] is a family of multiplication operators related to a scalar function m(t,x) that may vanish, while Lp(t)t∈[0,T] is the realization of a family of linear second-order differential operators, with smooth coefficients, L(t)t∈[0,T], Lp(t) being invertible for all t∈[0,T]. Moreover, Bp(t,s)t,s∈[0,T],s≤t is the realization of a family B(t,s)t∈[0,T],s≤t of linear second-order differential operators with smooth coefficients. Finally, the scalar functions a and b are such that 1/a and b/a are Hölder-continuous with suitable Hölder exponents
Ascheria Kaim, Jenkins, Tanabe & Kiel, 2014, gen. nov.
No full textGenus Ascheria gen. nov. Type species. Abyssochrysos ? giganteum Kiel et al., 2008 b (see Fig. 7 E–F herein) from a seep deposit on the east shore of Lake Berryessa in Napa County, California, USA; Early Cretaceous, Great Valley Group. This is locality # 12 in Kiel et al. (2008 b) and was named East Berryessa therein. Diagnosis. Large high-spired cerithiform shell with strong opisthocline axial ribs, numerous spiral lirae, and subsutural constriction developing on the adult portion of the shell. Ornament may remain throughout the ontogeny or may fade away on the adult whorls. Species included: Abyssochrysos ? giganteum Kiel et al., 2008 b from the Early Cretaceous of East Berryessa, California; Chemnitzia eucosmeta Ascher, 1906 from the Early Cretaceous of Hradiště (previously Grodischt) and Koňákov (previously Koniakau), Czech Republic; and undescribed new species from the Eocene of Barbados identified as Diastoma sp. and "Cerithid indet." by Kugler et al. (1984). The same specimens were later reillustrated and identified as “ Abyssochryssos sp.” by Gill et al. (2005: fig. 5 D) and as “zygopleurid sp. B” (Gill et al. 2005: fig. 5 F, H, I). Remarks. Ascheria differs from Abyssomelania gen. nov. described above by having evenly convex whorls, axial and spiral ornamentation throughout the ontogeny, and by the presence of a subsutural constriction. Furthermore, Ascheria lacks abyssomelanid riblets. Abyssochrysos Tomlin, 1927 differs by lacking a subsutural constriction. Humtulipsia Kiel, 2008 differs by having a deep notch in the aperture near the basal margin. Etymology. In honor of Else Ascher who monographed the Early Cretaceous seep faunas from the Český Těšín area (Ascher 1906). Stratigraphic range. Early Cretaceous to late Eocene.Published as part of Kaim, Andrzej, Jenkins, Robert G., Tanabe, Kazushige & Kiel, Steffen, 2014, Mollusks from late Mesozoic seep deposits, chiefly in California, pp. 401-440 in Zootaxa 3861 (5) on page 416, DOI: 10.11646/zootaxa.3861.5.1, http://zenodo.org/record/25246
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Topic 5: Time-Dependent Behavior
No full textThis chapter is a report of the material presented at the International Workshop on Finite Element Analysis of Reinforced Concrete, Session 4 -- Time Dependent Behavior, held at Columbia University, New York on June 3--6, 1991. Dr. P.A. Pfeiffer presented recent developments in time-dependent behavior of concrete and Professor T. Tanabe presented a review of research in Japan on time-dependent behavior of concrete. The chapter discusses the recent research of time-dependent behavior of concrete in the past few years in both the USA-European and Japanese communities. The author appreciates the valuable information provided by Zdenek P. Bazant in preparing the USA-European Research section
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