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Wednesday, April 8th, 2020
| Time | Event | ||||||||
| 3:51a | [Ichthyology • 2020] Roa haraguchiae • A New Species of Butterflyfish (Perciformes: Chaetodontidae) from Japan and the Philippines
Abstract A new butterflyfish, Roa haraguchiae, is described on the basis of eight specimens (63.2–92.8 mm standard length: SL) collected from Japan and the Philippines. The new species is most similar to Roa rumsfeldi Rocha, Pinheiro, Wandell, Rocha and Shepherd 2017, known only from the holotype from the Philippines. Both species are distinguished from all other congeners by the following combination of characters: long snout (12.6–14.1% of SL), lesser head depth (46.2–54.9%), short postorbital area (12.1–14.1%) and pectoral fin (27.9–32.4%), and second and third bands on the body without blackish edges. The new species is however easily distinguished from R. rumsfeldi (based on the original description and an additional Philippine specimen) in having 5–8 non-pored lateral-line scales (vs. 13 scales in the latter), 11 or 12 scale rows above the lateral line (vs. 8), 22–28 scale rows below the lateral line (vs. 19), 10–12 scale rows under the longer axis of a black blotch on the dorsal-fin soft-rayed portion (vs. 8), the anterior margin of the second body band not reaching anteroventrally to the pelvic-fin spine base, and the pelvic-fin spine and first soft ray white (vs. black). Keywords: Taxonomy, Roa rumsfeldi, East China Sea, Morphology, Description
Roa haraguchiae sp. nov. (New English name: White-spine Butterflyfish; new standard Japanese name: Panda-genrokudai) Chaetodon modestus (not of Temminck and Schlegel 1844): Ida 2009: 389, unnumbered uppermost middle fig. (Izu Peninsula, Japan) Roa sp.: Uejo and Motomura 2017: 169, unnumbered fig. (off Iloilo, Panay Island, Philippines) Distribution: Currently known from off Iloilo, Panay Island, the Philippines, and the East China Sea, Japan (146–162 m depth). Etymology. The species is named in honor of Mrs. Yuriko Haraguchi, who has kindly supported our ichthyological research and fish collection management at the Kagoshima University Museum as a volunteer over 15 years. Takuya Uejo, Hiroshi Senou and Hiroyuki Motomura. 2020. Roa haraguchiae, A New Species of Butterflyfish (Teleostei: Perciformes: Chaetodontidae) from Japan and the Philippines. Ichthyological Research. DOI: 10.1007/s10228-020-00735-9 | ||||||||
| 8:03a | [Botany • 2020] Capparis lianosa • A New Species from Limestones of the Luang Prabang Province [Studies on the Genus Capparis L. (Capparaceae) in Lao PDR. V]
Abstract A new species of Capparis L., Capparis lianosa Fici & Souvannakhoummane, is described and illustrated from limestones of the Muang Ngoi District, Luang Prabang Province, in northern Lao PDR. The new species, belonging to Capparis sect. Monostichocalyx Radlk., is related to C. zeylanica L., differing in several characters as the shorter stipular thorns, the leaves with apex acuminate, the shorter, glabrous or glabrescent gynophore and the flattened stigma. KEY WORDS: Capparaceae, Capparis, Lao PDR, sect. Monostichocalyx, new species
Capparis lianosa Fici & Souvannakhoummane, sp. nov. A C. zeylanica L. spinis stipularibus minoribus, foliis cum apice acuminato, petalis brevioribus, gynophoro breviore glabro vel glabrescente, stigmate plano praecipue differt.
Distribution and ecology. — The new species is only known from the type locality (Fig. 1), where few scattered individuals were observed in the evergreen forest at the top of a Permo-Carboniferous limestone formation, with Dracaena cambodiana Pierre ex Gagnep., Euphorbia antiquorum L., Ficus sp., Schefflera pueckleri (K. Koch) Frodin, Platycerium holttumii Joncheere & Hennipman, Asplenium nidus L. var. nidus (Fig. 3); 410-510 m a.s.l.  Silvio Fici and Keooudone Souvannakhoummane. 2020. Studies on the Genus Capparis L. (Capparaceae) in Lao PDR. V: A New Species from Limestones of the Luang Prabang Province. Adansonia. 42(5); 113-118. DOI: 10.5252/adansonia2020v42a5 RÉSUMÉ: Une nouvelle espèce de Capparis (Capparaceae) des calcaires de la province de Luang Prabang, Lao PDR. Une nouvelle espèce de Capparis L., Capparis lianosa Fici & Souvannakhoummane, est décrite et illustrée des calcaires du district de Muang Ngoi, province de Luang Prabang, nord du Laos PDR. La nouvelle espèce appartient à Capparis sect. Monostichocalyx Radlk., et ressemble à C. zeylanica L., dont elle se distingue par plusieurs caractères comme les épines stipulaires plus courtes, les feuilles à sommet acuminé, le gynophore plus court, glabre ou glabrescent et le stigmate plat.  | ||||||||
| 9:54a | [PaleoIchthyology • 2020] Amakusaichthys goshouraensis • A New Ichthyodectiform Fish from the Upper Cretaceous (Santonian) Himenoura Group in Goshoura, Amakusa, Kumamoto, Japan
ABSTRACT A new ichthyodectiform fish, Amakusaichthys goshouraensis gen. et sp. nov. is described based on several specimens from the Late Cretaceous (Santonian) Hinoshima Formation of the Himenoura Group at Goshoura, Amakusa, Kumamoto in Kyushu, Japan. Amakusaichthys is hypothesized to form a clade with the genus Heckelichthys from the North Atlantic and western Tethyan regions. This new species is highly distinct from other ichthyodectiforms in having the long snout and small mouth with fine conical teeth, which indicates this group had greater diversity than it had been thought. KEYWORDS: Amakusaichthys goshouraensis, Cretaceous, fish, Ichthyodectiformes, Japan, Santonian  
Yoshitaka Yabumoto, Koji Hirose and Paulo M. Brito. 2020. A New Ichthyodectiform Fish, Amakusaichthys goshouraensis gen. et sp. nov. from the Upper Cretaceous (Santonian) Himenoura Group in Goshoura, Amakusa, Kumamoto, Japan. Historical Biology: An International Journal of Paleobiology. 32(3); 362-375. DOI: 10.1080/08912963.2018.1497022 |
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