scholarly journals Proposal of two new genera of the family Zosimeidae Seifried (Copepoda: Harpacticoida): Heterozosime gen. nov. and Acritozosime gen. nov.

2021 ◽  
Vol 760 ◽  
Author(s):  
Jong Guk Kim ◽  
Jimin Lee
Keyword(s):  
Evolutionary History ◽  
Northwestern Pacific ◽  
Exopodal Segment ◽  
New Genera ◽  
Morphological Examination ◽  
Korean Waters ◽  
The Pacific ◽  
The Family ◽  
The Pacific Ocean ◽  
Thoracic Legs

In the Pacific Ocean, the taxonomy of the family Zosimeidae Seifried, 2003 is poorly understood and to date only five species of the genus Zosime Boeck, 1873 are known. During oceanographic cruises exploring the species diversity of harpacticoids, two undescribed zosimeid copepods were sampled from shallow Korean waters and the deep northwestern Pacific. A detailed morphological examination has led us to propose two new genera, Heterozosime gen. nov. for the Korean zosimeid H. tenuis gen. et sp. nov. and Acritozosime gen. nov. for the deep-sea zosimeid A. spinesco gen. et sp. nov. Both new genera exhibit a distinctive feature in that the first thoracic leg has a two-segmented exopod, in contrast to the three-segmented exopod of this leg in all known zosimeid genera. Furthermore, Acritozosime gen. nov. can also be discriminated from other genera by the two-segmented endopod in second to fourth thoracic legs and the reduced setal armatures of the second exopodal segment of antenna, the first endopodal segment of first to third thoracic legs and the third exopodal segment in second to fourth thoracic legs. A comparison of the fundamental structures of appendages suggests that A. spinesco gen. et sp. nov. experienced a unique evolutionary history within the Zosimeidae.

A new species of Cythere (Ostracoda) from the Middle Eocene McIntosh Formation, Doty Hills, Washington State, USA, and its significance for the evolutionary history of the genus

2010 ◽  
Vol 84 (4) ◽  
pp. 709-719
Author(s):  
Tatsuhiko Yamaguchi ◽  
James L. Goedert
Keyword(s):  
Evolutionary History ◽  
Middle Eocene ◽  
Washington State ◽  
Northwestern Pacific ◽  
The Pacific ◽  
Northeastern Pacific ◽  
History Of ◽  
The Pacific Ocean ◽  
Western Washington ◽  
A New Species

Cythere ikeyanoriyukii n. sp., an extant phytal ostracode genus, was obtained from the Middle Eocene McIntosh Formation in the Doty Hills, western Washington State, USA. It was associated with eleven taxa, which are extant phytal and shelfal genera such as Loxocorniculum, Xestoleberis, Ambostracon, Coquimba, and Acanthocythereis. The presence of Cythere in this assemblage is surprising and indicates that the first appearance of this genus was middle Eocene time at the latest, or at least 20 Ma earlier than previously thought. Cythere did not originate in the Pacific Ocean around Japan as previously thought, but instead must have migrated from the northeastern Pacific to the northwestern Pacific between middle Eocene and early Miocene time.

Two new species of the genus Syngastes (Copepoda, Harpacticoida, Tegastidae) from South Korea

Crustaceana ◽  
2016 ◽  
Vol 89 (4) ◽  
pp. 431-458 ◽  
Author(s):  
Jong Guk Kim ◽  
Jong Guk Kim ◽  
Tae Won Jung ◽  
Jong Guk Kim ◽  
Tae Won Jung ◽  
...  
Keyword(s):  
New Species ◽  
South Korea ◽  
First Record ◽  
Exopodal Segment ◽  
Key To Species ◽  
Korean Waters ◽  
The Family ◽  
Two New Species ◽  
Almost All

Herein two new species of the genusSyngastesMonard, 1924 are described from South Korea, with detailed descriptions and illustrations. Both new copepods,Syngastesmulticavussp. nov. andS. pseudofoveatussp. nov., have two inner setae on the first exopodal segment of P2 and P3.Syngastesmulticavussp. nov. most closely resemblesS. gibbosusBartsch, 1999 reported from Australia, as they both have a five-segmented antennule in the female. However,Syngastesmulticavussp. nov. has a rounded body outline instead of the gibbose outline observed inS. gibbosus.Syngastespseudofoveatussp. nov. resemblesS. foveatusBartsch, 1994 in almost all aspects. However, they differ clearly in the number of setae on the first exopodal segment of P2 and P3. We also provide a key to species of the genusSyngastesworldwide. The present study is the first record of the family Tegastidae in Korean waters.

THE SPECIES AND NUMBER OF SYMBIOTIC PENICILLATE MILLIPEDS IN ARBOREAL ANT NESTS

1982 ◽  
Vol 114 (8) ◽  
pp. 767-768 ◽  
Author(s):  
Kiyoshi Ishii ◽  
Hiroto Yamaoka
Keyword(s):  
Pacific Ocean ◽  
Pinus Thunbergii ◽  
Mountain Forest ◽  
Castanopsis Cuspidata ◽  
Ant Nests ◽  
The Pacific ◽  
The Family ◽  
Maritime Forest ◽  
Machilus Thunbergii ◽  
The Pacific Ocean

No reports have been published about symbiotic penicillate millipeds living in arboreal ant nests, though Donisthorpe (1927) reported those in edaphic ant nests. Therefore, we tried to determine the species and numbers of symbiotic penicillate millipeds in arboreal ant nests.An investigation of the symbiotic penicillate millipeds was conducted in both the maritime forest (Daphniphyllum teijsmannii Zoll., Pinus thunbergii Parl.) and the mountain forest (Machilus thunbergii Sieb. et Zucc., Castanopsis cuspidata Schottky var. sieboldii Nakai) on Miyakejima Island (about N 34°05′, E 139°30′) in the Pacific Ocean, 28 March 1980. As a result, we found symbiotic penicillate millipeds of the family Polyxenidae only in the maritime forest.

scholarly journals Host–parasite relationships between seabirds and the haemadipsid leech Chtonobdella palmyrae (Annelida: Clitellata) inhabiting oceanic islands in the Pacific Ocean

Parasitology ◽  
2020 ◽  
Vol 147 (14) ◽  
pp. 1765-1773
Author(s):  
Takafumi Nakano ◽  
Hajime Suzuki ◽  
Naoko Suzuki ◽  
Yuichi Kimura ◽  
Tatsuo Sato ◽  
...  
Keyword(s):  
Taxonomic Status ◽  
Oceanic Islands ◽  
28S Rrna ◽  
Morphological Examination ◽  
Long Distance ◽  
Bonin Islands ◽  
Okinawa Island ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Host Parasite

AbstractThe duognathous haemadipsid leeches of the genus Chtonobdella show a trans-oceanic distribution throughout the Indo-Pacific region. Although passive long-distance dispersal (LDD) of Chtonobdella leeches by birds has been suggested, little is known about the host–parasite relationships between avian hosts and Chtonobdella leeches. In the current study, we investigated Chtonobdella leech infestations of the eyes and other mucus membranes of migratory procellariiform seabirds, Pterodroma hypoleuca and Oceanodroma tristrami, captured at six locations in the Bonin Islands, Honshu and Okinawa Island, Japan. Analyses of the partial sequences of 18S rRNA, 28S rRNA, and mitochondrial cytochrome c oxidase subunit I (COI) and morphological examination of the specimens demonstrated that the Chtonobdella leeches belonged to Chtonobdella palmyrae, which is indigenous to Palmyra Atoll in the Northern Line Islands. A dominant COI sequence type was observed in samples from all six sites; therefore, C. palmyrae almost surely dispersed approximately 1000 km by infesting the eyes and mucus membranes of procellariiform seabirds. The host–parasite relationships between procellariiform seabirds and C. palmyrae provide explicit evidence of the LDD of duognathous haemadipsid leeches. The taxonomic status of Haemadipsa zeylanica ivosimae from the Volcano Islands is also briefly discussed.

New paedomorphic brachiopods from the abyssal zone of the north-eastern Pacific Ocean

Zootaxa ◽  
2013 ◽  
Vol 3613 (3) ◽  
pp. 281-288 ◽  
Author(s):  
MARIA ALEKSANDRA BITNER ◽  
VJACHESLAV P. MELNIK ◽  
OLGA N. ZEZINA
Keyword(s):  
Pacific Ocean ◽  
Deep Sea ◽  
New Genera ◽  
Eastern Pacific Ocean ◽  
The North ◽  
The Pacific ◽  
North Eastern ◽  
The Pacific Ocean ◽  
Abyssal Zone ◽  
Sexually Mature

New Recent very small but sexually mature brachiopods have been found at abyssal depths (4580–4850 m) in the Clarion- Clipperton Zone of the Pacific Ocean. They are characterized by simple (under-developed, juvenile) morphological fea-tures, which are interpreted here as paedomorphic, indicating the importance of heterochrony in the evolution of deep-sea brachiopods. We have described these brachiopods as representing two new genera and species, i.e. Oceanithyris juveni-formis Bitner & Zezina (Family ?Dyscoliidae) and Simpliciforma profunda Bitner & Zezina (Superfamily Gwynioidea).

The Sponge Family Guadalupiidae in the Texas Permian

2010 ◽  
Vol 84 (5) ◽  
pp. 821-847 ◽  
Author(s):  
Robert M. Finks
Keyword(s):  
Evolutionary History ◽  
Growth Patterns ◽  
New Genera ◽  
The West ◽  
Entire Family ◽  
Ecological Relationships ◽  
West Texas ◽  
The Family ◽  
History Of ◽  
Almost All

New and old species and genera of the family Guadalupiidae (spherulitic hypercalcified demosponges of the order Agelasida) are described or redescribed from the West Texas Permian. The entire family is reviewed and observations are made on the epibionts, growth patterns, functional morphology, ecological relationships, morphologic variability, modular structure, and evolutionary history of these largely reef-dwelling sponges. The stratigraphic distribution of species is also noted; many are limited and can define zones. The new genera Exovasa and Incisimura and the new species Guadalupia auricula, G. cupulosa, G. ramescens, G. microcamera, G. vasa, Cystothalamia megacysta, Lemonea simplex, Incisimura bella, and Exovasa cystauletoides are described. Almost all previously published taxa are redescribed and in some cases redefined. The Guadalupiidae are unique among hypercalcified sponges in having a modular thalamid layer (thalamidarium) covered on the exhalant surface by a non-modular stromatoporoid-like layer (trabecularium).

scholarly journals Three Planctomycetes isolated from biotic surfaces in the Mediterranean Sea and the Pacific Ocean constitute the novel species Symmachiella dynata gen. nov., sp. nov. and Symmachiella macrocystis sp. nov.

2020 ◽  
Vol 113 (12) ◽  
pp. 1965-1977
Author(s):  
Markus Salbreiter ◽  
Muhammad Waqqas ◽  
Mareike Jogler ◽  
Nicolai Kallscheuer ◽  
Sandra Wiegand ◽  
...  
Keyword(s):  
Cell Biology ◽  
Novel Species ◽  
Optimal Growth ◽  
Monterey Bay ◽  
The Novel ◽  
Separate Species ◽  
The Pacific ◽  
The Family ◽  
The Pacific Ocean ◽  
Significant Attention

AbstractPlanctomycetes is a phylum of environmentally important bacteria, which also receive significant attention due to their fascinating cell biology. Access to axenic Planctomycete cultures is crucial to study cell biological features within this phylum in further detail. In this study, we characterise three novel strains, Mal52T, Pan258 and CA54T, which were isolated close to the coasts of the islands Mallorca (Spain) and Panarea (Italy), and from Monterey Bay, CA, USA. The three isolates show optimal growth at temperatures between 22 and 24 °C and at pH 7.5, divide by polar budding, lack pigmentation and form strong aggregates in liquid culture. Analysis of five phylogenetic markers suggests that the strains constitute two novel species within a novel genus in the family Planctomycetaceae. The strains Mal52T (DSM 101177T = VKM B-3432T) and Pan258 were assigned to the species Symmachiella dynata gen nov., sp. nov., while strain CA54T (DSM 104301T = VKM B-3450T) forms a separate species of the same genus, for which we propose the name Symmachiella macrocystis sp. nov.

scholarly journals Taro Planthopper Tarophagus colocasiae (Matsumura) (Insecta: Hemiptera: Delphacidae: Delphacinae)

EDIS ◽  
2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
Alexander Tasi ◽  
Adam Dale
Keyword(s):  
United States ◽  
Pacific Ocean ◽  
Aesthetic Value ◽  
Primary Host ◽  
Landscape Plants ◽  
The Pacific ◽  
The Family ◽  
The Pacific Ocean ◽  
Sap Feeding ◽  
The Aesthetic

The taro planthopper, Tarophagus colocasiae (Matsumura), is a sap feeding insect in the family Delphacidae. It primary host plant is taro (Colocasia esculenta (L.) Schott) Originally native to Southeast Asia, Indonesia, and islands in the Pacific Ocean, Tarophagus colocasiae was first discovered in the continental United States at a garden center in Winter Haven, FL in 2015. The economic impacts of Tarophagus colocasiae in Florida are currently unknown, but it may affect the aesthetic value and saleability of nursery and landscape plants. Also published on the Featured Creatures website at http://entnemdept.ufl.edu/creatures/orn/tarophagus_colocasiae.html

Late Cretaceous gastropods from the Izumi Group of southwest Japan

1990 ◽  
Vol 64 (4) ◽  
pp. 563-578 ◽  
Author(s):  
Tomoki Kase
Keyword(s):  
Late Cretaceous ◽  
North American ◽  
Upper Cretaceous ◽  
Coastal Areas ◽  
Basal Part ◽  
Northwestern Pacific ◽  
New Genera ◽  
Southwest Japan ◽  
The North ◽  
The Family

The basal part of the Upper Cretaceous, mid-Campanian to Maastrichtian Izumi Group of the Izumi Mountains and Awaji Island, Southwest Japan, contains the most diverse gastropod fauna of this age in Japan. This paper discriminates 19 species and describes two new genera: Atira tricarinata n. sp., Ataphrus (s.s.) sp. A, Ataphrus (s.s.) sp. B, Globularia (s.s.) izumiensis n. sp., Lysis izumiensis n. sp., Trichotropis? sp., Deussenia takinoikensis n. sp., Volutilithes antiqua n. sp., Pseudoperissitys bicarinata Nagao and Otatume, Nekewis sp., Nipponitys inouei n. gen. and sp., Nipponitys acutangularis n. gen. and sp., Nipponitys sp. cf. N. magna (Kalishevitsch), Calorebama cretacea n. sp., Taniella japonica n. gen. and sp., Amuletum (s.s.) sp., Biplica osakensis n. sp., Biplica sphaerica n. sp., and Cylichna sp. The family Ampullospiridae is assigned to the suborder Architaenioglossa from the superfamily Naticacea. The enigmatic genus Lysis is tentatively assigned to the Calyptraeidae. Taniella japonica n. sp. is the oldest member of the family Olividae, and Calorebama cretacea n. sp. is the oldest member of the subfamily Pseudolivinae. Occurrence of Atira, Ataphrus, Biplica, and five perissityids further supports close communication of the northwestern Pacific Late Cretaceous gastropod faunas with those of the North American Pacific coastal areas.

Copepods of the family Dirivultidae (Siphonostomatoida) from deep-sea hydrothermal vent fields on the Mid-Atlantic Ridge at 14ºN and 5ºS

Zootaxa ◽  
2006 ◽  
Vol 1277 (1) ◽  
pp. 1 ◽  
Author(s):  
VIATCHESLAV N. IVANENKO ◽  
PEDRO MARTÍNEZ ARBIZU ◽  
JENS STECHER
Keyword(s):  
Deep Sea ◽  
Hydrothermal Vent ◽  
First Record ◽  
Remotely Operated Vehicle ◽  
The Pacific ◽  
The Family ◽  
Mid Atlantic Ridge ◽  
The Pacific Ocean ◽  
Menez Gwen ◽  
Back Arc

Five species of three genera of Dirivultidae Humes and Dojiri, 1980 were found at deep-sea hydrothermal vent fields on the Mid-Atlantic Ridge, at the Logachev-1 field at 14ºN and at two new sites (Turtle Pits and Red Lion) explored at 5ºS. The copepods were collected with a Remotely Operated Vehicle (ROV Quest 4000) and Video Controlled Grab, operated from the R/V Meteor during two cruises (M60/3 and M64/1) conducted in 2004 and 2005 at depths 2992–3048 m. The male of Stygiopontius lomonosovi n. sp. from the Logachev field shares a medioventrally prolonged syncoxa of the maxilliped with S. mirus Humes, 1996 and S. latulus Humes, 1996 from the Snake Pit at 23ºN of the Mid-Atlantic Ridge, but differs from them in having two, instead of three, outer spines on the distal exopodal segment of leg 4. Aphotopontius atlanteus Humes, 1996 previously known from the Lucky Strike and the Menez Gwen sites at 37°N and Rimipontius mediospinifer Humes, 1996 known from three sites (Logachev, Snake Pit, and Broken Spur at 29°N) are recorded from the Logachev field. Stygiopontius pectinatus Humes, 1987 previously recorded from the Mid-Atlantic Ridge hydrothermal vent fields TAG (26°N), Snake Pit, Broken Spur (29°N), and from the Mariana Back-Arc Basin of the Pacific Ocean and Stygiopontius cladarus Humes, 1996 previously known only from Snake Pit and Broken Spur, were found associated with alvinocaridid shrimps (Rimicaris sp.) from the hydrothermal vent field at 5ºS. The discovery of dirivultids at 5ºS represents the first record of copepods from a deep-sea hydrothermal vent southward of the Logachev field in the Atlantic Ocean.

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