Paramacrobiotus lachowskae,a new species of Tardigrada from Colombia (Eutardigrada: Parachela: Macrobiotidae)

In this article we describe a new Paramacrobiotus species of the areolatus group by means of integrative taxonomy. Together with the detailed morphological and morphometric data (obtained from light and scanning electron microscopy) we also provide DNA sequences of four universal molecular markers used in tardigrade taxonomy (three nDNA fragments: 18S rRNA, 28S rRNA, ITS-2, and one mtDNA fragment: COI). The animals of Paramacrobiotus lachowskae sp. nov. are similar to several species of the areolatus complex and the eggshell ornamentation is similar to that of two species of the richtersi group. Therefore, the new species can be easily distinguished from the areolatus group species by egg morphology (dome-like, wrinkled processes with long flexible spines/filaments covered by fine short hairs) and from species of the richtersi complex by the absence of the microplacoid. Paramacrobiotus lachowskae sp. nov. is the 43rd species reported from Colombia and fifth Paramacrobiotus species from this South American country.

http://zoobank.org/urn:lsid:zoobank.org:pub:FEDC11D3-DCCF-4699-A704-CE6DEA1CDED4     

A new species of Ramazzottius (Tardigrada, Hypsibiidae) in a rain gutter sediment from England

Five species of tardigrades were extracted from a sample of sediment from a rain gutter. Four of these, the heterotardigrade Echiniscus testudo and the eutardigrades Milnesium tardigradum, Ramazzottius oberhaeuseri , and probably Macrobiotus cf. sandrae are typical of xerophilous habitats. The fifth species, Ramazzottius varieornatus sp. nov. , is new to science, and it can be readily distinguished from the others of the same genus by egg shell morphology, placoids and the type of cuticle.     

Tardigrades from Taiwan, with the description of a new species of Doryphoribius (Tardigrada, Hypsibiidae)

A total of eleven species of tardigrades from Taiwan are reported in this article. They belong to two classes, three orders, four families, and ten genera. Ten species are new records for Taiwan and one is new to science. Doryphoribius taiwanus sp. nov. is similar to Dor. mariae , but differs from it by larger body size, by conspicuous tubercles on the lateral side and dorsal sides of the body, by lacking gibbosities and undulations, by a narrower buccal tube, and by longer claws.     

A new species of the genus Macrobiotus(Tardigrada:Macrobiotidae) from Southeastern China

A new species Macrobiotus wuyishanensis sp.nov.(Tardigrada:Macrobiotidae) is described from Mt.Wuyi,Southeastern China.It is most similar to Macmbiotus spectabilis Thulin,1928,but differs by lacking fine punctuation on the distal half of the projections on the egg,a ring of polygons that circle the base of each projection,and punctation between the projections on the egg shell.It is also similar to M.grandis Richters,1911,but differs by smaller body size,lacking polygons and punctations between the projections on egg shell.     

Phylogenetic Relationships in the Macrobiotidae (Tardigrada: Eutardigrada: Parachela)

Characters of the claws, buccal-pharyngeal apparatus and ultrastructure of the cuticle have been examined to identify phyletic relationships within the Macrobiotidae. Several apomorphies have been identified. The resulting cladogram shows two main phyletic lines within the family, corresponding to the subfamilies Macrobiotinae and Murrayinae. The relationships among the genera of the Murrayinae are resolved, whereas in the Macrobiotinae five main phyletic lines are identified, whose relationships are still unknown. Pseudodiphascon and Macrobiotus appear to be polyphyletic genera.     

A new horned sculpin (Pisces: Cottidae) from the Miocene of Sakhalin Island,Russia

A new species of the Recent genus Enophrys, E. hoplites sp. nov., is described from the Miocene (Serravalian?Tortonian) Agnevo Formation of Sakhalin Island, Russia. This Miocene species differs from two Recent congeners in the greater number of anal fin rays (14 versus 9?13), the smaller head, less raised margins of the orbit, flatter upper contour of the head, longer anal fin base, short predorsal distance, higher first dorsal fin, and in the right angle (versus acute angle) between two upper preopercular spines. An archaic feature of the new species is the presence of two rays on the posterior pterygiophore of the anal fin, a character recorded only in the most primitive Recent members of the family. The occurrence of this new fossil species shows that extant subfamilies, tribes, and genera existed as a part of the family Cottidae as early as the Miocene time.     

Four new species of the mite genus Bakerdania (Heterostigmata, Pygmephoridae) from Russia

Four new mite species (Bakerdania palustris, B. taymyrica, B. mycophila, and B. littoralis) from different regions of Russia are described. Bakerdania palustris sp. n. is most similar to B. janetscheki Mahunka, 1970, differing in the presence of adjoining bases of setae ps ₂ and ps ₃ (in B. janetscheki, ps ₃ is separated from ps ₂) and also by shorter smooth setae 2b (in B. janetscheki, setae 2b are serrate and distinctly longer). Bakerdania taymyrica sp. n. is most similar to B. heisseli Mahunka, 1970, differing in the presence of the brush-like setae 1a (that are trichoid and serrate in B. heisseli); shorter setae tc′ on the tibiotarsus I, that are almost half as long as setae pl′ (in B. heisseli, tc′ is much longer, nearly as long as pl′). Bakerdania mycophila sp. n. is most similar to B. racki (Mahunka, 1967), differing in the presence of significantly longer ventral setae and the separate solenidion ω₁ (in B. racki, the latter is fused with the tibiotarsus). Bakerdania littoralis sp. n. is most similar to B. racki, differing from the latter in the shape of setae 1a, 2a, 3a, 3b, 4a that are basally thickened; in the shape of setae ps ₁ (trichoid in B. racki); and in the presence of the non-furcated setae 1b (in B. racki, these setae are bifurcate).     

中国缓步动物2新纪录种（缓步动物门，大生熊虫科，高生熊虫科）记述

本文记述了缓步动物门2新纪录种,阿瑞科姆大生熊虫Macrobiotus ariekammensis Wêglarska, 1965和帕氏双相熊虫Diphascon patanei Binda & Pilato, 1971.阿瑞科姆大生熊虫模式标本爪无附棘,但中国标本有.帕氏双相熊虫模式标本的吸咽较来自中国标本的吸咽要短圆一些,前者吸咽的长宽比是1.21～1.25∶1,而后者的吸咽平均长宽比为1.47∶1.     

A new species of the genus Pectinodonta Dall, 1882 (Gastropoda: Pectinodontidae) from the East China Sea

A new pectinodontid species collected from sunken wood in the East China Sea off Zhejiang Province, China, is described and assigned to the genus Pectinodonta Dall, 1882. This new species, Pectinodonta mazuae n. sp., has a medium sized shell with a fine sculpture; shell width about 72%–75% of shell length, height about 61%–66% of length, and each lateral tooth has 16 or 17 cusps. These features may be used to distinguish the new species from its congeners.

http://zoobank.org/urn:lsid:zoobank.org:act:4B3D491F-868D-4F9A-8CC9-005829BF691E     

Galaziella baikalensis, a new genus and species of chirocephalid (Crustacea: Branchiopoda: Anostraca) from Russia and the zoogeography of East Asian Anostraca

Galaziella baikalensis gen. et sp. nov. is described from Olkhon Island, Lake Baikal, Russia. The genus is assigned to the family Chirocephalidae Daday, 1910, on the basis of the following features: the male has two-segmented antenna, its basal segment bearing two leaf-shaped antennal appendages, all thoracopods with two distinctly divided pre-epipodites, and genital segments containing two clearly defined seminal vesicles. Galaziella is well distinguished from other genera of the family by the apical part of the penes, armed with "two spiniform processes" at each apex, instead of a single spine or toothed plate. Such male genital processes have not yet been found in Chirocephalidae, so that the diagnosis of the family is revised and two sub-families are proposed herein. Up to the present, 10 species belonging to 7 genera, including Galaziella baikalensis, and 5 families of Anostraca – Artemiidae, Branchinectidae, Branchipodidae, Chirocephalidae, and Thamnocephalidae – have been found in East Asia and its adjacent areas, including the Russian Far East, Mongolia, China, Korea, and Japan. The list includes all synonymic taxa. A distribution map and a key to the East Asian species of the family Chirocephalidae are provided. Received: November 22, 1999 / Accepted: May 2, 2000     

A new genus and species of gall midges of the supertribe Heteropezidi (Diptera,Cecidomyiidae) found in Eocene amber from Sakhalin

A new genus and species of pedogenetic gall midge, Estoperpetua sakhalinica gen. et sp. nov., of the tribe Heteropezini (subfamily Lasiopterinae) is described. Gall midges have not been recorded in Eocene amber of Sakhalin. A female with 4-segmented tarsi, large transparent triangular sensoria on flagellomeres, short wings and legs, and long 2 + 9-segmented antennae is described. Heteropezidi shows the greatest generic and species diversity in the Late Eocene Rovno amber. Representatives of this supertribe were also found in the Late Eocene Baltic amber, Early Eocene Oise amber, Miocene amber from Mexico and Dominican Republic, and African copal. Heteropezidi from different amber faunas are reviewed.     

Three new species of Diphascon of the pingue group (Eutardigrada,Hypsibiidae) from Antarctica

This paper contributes to the knowledge of the pingue group of species within the genus Diphascon. Three new species are described, Diphascon (D.) polare, D. (D.) dastychi and D. (D.) victoriae, from Victoria Land (Antarctica); they differ from other species of the pingue group in characters of the bucco-pharyngeal apparatus. D. polare and D. victoriae differ also in the claw shape. A key is provided to the Diphascon pingue group. Accepted: 30 November 1998     

A new genus of Decticinae (Orthoptera: Tettigoniidae) from the Middle East

A new genus, Raggeana, is erected for Metrioptera bodenheimeri Uvarov, and the hitherto unknown female of this species is described.     

A new species of Tardigrada (Eutardigrada: Milnesiidae): Milnesium krzysztofi from Costa Rica (Central America)

Abstract

A new eutardigrade species Milnesium krzysztofi sp. nov. is described from Costa Rica. M. krzysztofi sp. nov. differs from the most similar Milnesium katarzynae Kaczmarek et al., 2004 mainly by the presence of spurs on internal claws I–III and on external claw IV.     

A new species of the genus Galloisiana (Grylloblattodea, Grylloblattidae) from Korea

A new ice bug species, Galloisiana odaesanensis sp. nov., is described from Mt. Odae, Pyeongchang-gun, Gangwon-do, South Korea. This species resembles the G. yuasai group in having a short body (less than 20 mm), distinct compound eyes, fewer than 35 antennomeres, and seven or eight cercomeres. The species is, however, clearly distinguished from the G. yuasai group by the following characters: slightly curved supra-anal plate with dull apical margin; rectangular pronotum that is straight on the posterior; 3rd antennomere 1.7 times as long as the 2nd. The distribution of the genus Galloisiana is discussed and a key for Galloisiana species is presented.     

A new species of the genus Helcogramma (Blenniiformes, Tripterygiidae) from Taiwan

A new species of triplefin fish (Blenniiformes: Tripterygiidae), Helcogramma williamsi, is described from six specimens collected from southern Taiwan. This species is well distinguished from its congeners by possessing 13 second dorsal-fin spines; third dorsal-fin rays modally 11; anal-fin rays modally 19; pored scales in lateral line 22-24; dentary pore pattern modally 5+1+5; lobate supraorbital cirrus; broad, serrated or palmate nasal cirrus; first dorsal fin lower in height than second; males with yellow mark extending from anterior tip of upper lip to anterior margin of eye and a whitish blue line extending from corner of mouth onto preopercle. Comparisons and a diagnostic key are provided for the species of Helcogramma now known from Taiwan: Helcogramma fuscipectoris, Helcogramma inclinata, Helcogramma striata, Helcogramma trigloides, and the newly recorded, Helcogramma rhinoceros.