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1.
云南鹤庆盆地晚第四纪介形类新属种   总被引:2,自引:2,他引:0  
彭金兰 《微体古生物学报》2000,17(4):388-398,T009,T011
云南鹤庆盆地晚第四纪(15 000-12 000aBP)HQ钻孔剖面建立介形类2新属6新种,即玻璃介科的Candona parua sp.nov.,Yunnanicandona oblonga sp.nov.,Lineocypris granulosa sp.nov.,L.gibba sp.nov.以及湖花介科的Parachinocythere reticulata gen.et sp.nov.,  相似文献   

2.
The diatom family Rhaphoneidaceae is characterized by high generic diversity and low species diversity with most genera known to have long stratigraphic ranges. The genera within this family are neritic marine, and mostly epipsammic. A new modern and epipsammic genus, Meloneis gen. nov., is described herein and is compared to all genera within Rhaphoneidaceae and especially to Rhaphoneis Ehrenberg s.l. Within Meloneis three new species and one variety are distinguished and described herein: M. mimallis sp. nov., M. mimallis var. zephyria var. nov., M. akytos sp. nov., and M. gorgis sp. nov.  相似文献   

3.
An emended diagnosis for Metasarcinae is given. The genera Cajarnarca Roewer, 1952 (Phalangodidae Tricommatinae), Chacoikeontus Roewer, 1929 and Tschaidicancha Roewer, 1957 (both Gonyleptidae Prostygninae) are transferred to the subfamily. The new genus Incasarcus is described for five new species of the Peruvian Department of Cusco. The five new species Incasarcus dianae sp. nov., Incasarcus pictus sp. nov., Incasarcus argenteus sp. nov., Incasarcus viracocha sp. nov. and Incasarcus ochoai sp. nov. axe described and illustrated. A key to the species of Incasarcus is given and their distribution is illustrated on a map.  相似文献   

4.
A new genus, Microsoronia, gen. nov., and new species of this genus, M. hoffeinsorum, sp. nov. from the Bitterfeld amber and M. kerneggeri sp. nov., M. nigerrima sp. nov., and M. interfax, sp. nov. from the Baltic amber, are described. The earliest known member of the genus Phenolia, P. (Lasiodites) angustitibialis, sp. nov., is described from the Baltic amber. The systematic position of these two genera, their possible evolution, as well as the possible ecology and bionomics of their members are discussed. It is shown that “Phenolia” incapax Scudder, 1890 should be included in the family Peltidae, rather than Nitidulidae.  相似文献   

5.
平须舞虻属Platypalpus Macquart是舞虻科中最大的属之一,已知550余种分布世界各地.四川以前已知8种.本文记述四川平须舞虻属3新种:短芒平须舞虻Platypalpus breviarista sp.nov.,微距平须舞虻Platypalpus minor sp.nov.和亚丁平须舞虻Platypalpus yadinganus sp.nov,均属于长角平须舞虻种团Platypalpus longicornis species group,并编制了四川平须舞虻属分种检索表.  相似文献   

6.
记述的菊石采自鄂东南大冶柯家湾晚二叠世大隆组,主要产于硅质页岩、硅质岩的灰岩透镜体中,共8属11种.此区大隆组仅相当于长兴阶的上部;Meitianoceras 在本区的出现,表明此属不仅分布于长兴阶的下部,也可延伸到长兴阶的上部.整个大隆组的化石,以自游生物为主,底栖类型很少.菊石中壳体大、壳面肋瘤发育者数量少,而壳饰弱、个体小者大量繁盛,呈现高丰度、低分异度的特点.保存化石的灰岩透镜体中具星散状的黄铁矿.本区晚二叠世晚期处于局部封闭的海湾环境.  相似文献   

7.
报道记述了采自马来西亚的蚱科28种,其中包括6新种(Phaesticus azemii sp. nov., Discotettix adenanii sp. nov, Discotettix selangori sp. nov.,Scelimena hafizaii sp. nov, Scelimena razalii sp. nov.和Gavialidium phangensum sp. nov.),并包括马来西亚新记录种11种。提供了马来西亚已记录属和种的检索表。  相似文献   

8.
Two new genera and five new species of Lower Permian radiolarians, Arcoclathrata alekseevi gen. et sp. nov., Entactinia pinrasensis sp. nov., Microporosa rozhnovi gen. et sp. nov., M. aktastensis sp. nov., and Somphoentactinia saecularis sp. nov., from the Southern Urals and Northern Mugodzhary are described. The new spherical radiolarian taxa belong to three orders: Entactiniata, Cancelliata, and Spongiata of two classes, Sphaerellaria and Spumellaria.  相似文献   

9.
From a total of 104 species and 1741 individuals of Isopoda, the material from DIVA-1 (DIVersity of the Atlantic benthos) contained 364 specimens belonging to Desmosomatidae Sars, 1897. They are represented by 10 genera and 27 species. Most species (93%) are new to science. Four species are described in this study (Eugerdella theodori sp. nov., Desmosoma renatae sp. nov., Torwolia tinbiene sp. nov. and Momedossa longipedis sp. nov.). A discussion of the genera Desmosoma Sars, 1864, Momedossa Hessler, 1970 and Torwolia Hessler, 1970 is presented.  相似文献   

10.
Desjardin DE 《Mycologia》2003,95(1):148-155
Lactarius rubriviridis sp. nov., characterized by hypogeous, sequestrate basidiomes with red latex, green stains, and forcibly discharged, reticulate basidiospores is described and illustrated. During the Spring, the new species forms basidiomes associated with conifers at 1400-1800 m elevation in the Sierra Nevada, and is known from two specimens collected 19 yr apart. Comparisons with the putatively polyphyletic genera Arcangeliella and Zelleromyces, and an accounting of all known members of these genera are provided.  相似文献   

11.
The phylogenetic relationships amongst the Arminidae were analysed based upon morphological characters of 58 presently described species or nudibranchs, including 35 previously described Arminidae and 20 new species of Dermatobranchus. From the literature review and anatomical examinations, 43 characters were considered for 78 taxa. These characters were polarized using Berthella canariensis as the outgroup taxon and the type species of several other genera identified from recent publications. The resulting phylogeny supports the monophyly of Arminidae, Dermatobranchus, Doridina, and Proctonotidae. The paraphyly of the Arminina is further demonstrated in this study. Two previously described, but poorly known, species of Indo-Pacific Armina are redescribed, Armina magnaBaba, 1955 and Armina paucifoliataBaba, 1955. The anatomy and taxonomic status of nine previously described species of Dermatobranchus were examined in this study. The anatomy of Dermatobranchus pustulosus (van Hasselt, 1824) has been overlooked since Bergh (1888) illustrated the radula of van Hasselt's specimen. It is redescribed and its range is extended to several new localities in the western Pacific. Dermatobranchus pulcherrimus Miller & Willan, 1986 is considered here as a new synonym of Dermatobranchus rubidus (Gould, 1852). The following 20 species of Dermatobranchus are new and are described in the present paper: Dermatobranchus albineus sp. nov., Dermatobranchus arminus sp. nov., Dermatobranchus caesitius sp. nov., Dermatobranchus caeruleomaculatus sp. nov., Dermatobranchus cymatilis sp. nov., Dermatobranchus dendonephthyphagus sp. nov., Dermatobranchus diagonalis sp. nov., Dermatobranchus earlei sp. nov., Dermatobranchus fasciatus sp. nov., Dermatobranchus funiculus sp. nov., Dermatobranchus kalyptos sp. nov., Dermatobranchus kokonas sp. nov., Dermatobranchus leoni sp. nov., Dermatobranchus microphallus sp. nov., Dermatobranchus oculus sp. nov., Dermatobranchus phyllodes sp. nov., Dermatobranchus piperoides sp. nov., Dermatobranchus rodmani sp. nov., Dermatobranchus semilunus sp. nov., and Dermatobranchus tuberculatus sp. nov. Eighteen of these new taxa are found in the Indo-Pacific tropics and two are found in temperate South Africa, D. albineus and D. arminus. Unique combinations of morphological characters distinguish these as new species of Dermatobranchus. Several species that are externally similar have radically divergent internal morphology, are members of different clades of Dermatobranchus, and represent cryptic species. Especially important is the radular morphology, which shows remarkable diversity of form, probably related directly to the diversification of feeding of members of this clade on various octocorals.  相似文献   

12.
13.
A new subfamily of predaceous diving beetles, Liadytiscinae subfam. nov., including two genera and four species, Liadytiscus gen. nov. (L. cretaceus sp. nov., L. longitibialis sp. nov., and L. latus sp. nov.) and Liadroporus gen. nov. (L. elegans sp. nov.), from the Late Tithonian-Berriasian (Huangbanjigou, Yixian Formation) of China is described. Two new genera, Mesoderus gen. nov. with two species, M. magnus sp. nov. and M. ventralis sp. nov., and Sinoporus gen. nov. with one species, S. lineatus sp. nov., are also described; their position in the system of Dytiscidae remains uncertain. Relationships of the taxa described with Recent and fossil taxa of the same rank and some presumable ecological features of the new taxa are discussed.  相似文献   

14.
新疆准噶尔盆地中生代直脉科(昆虫纲,长翅目)昆虫化石   总被引:3,自引:0,他引:3  
张海春 《古生物学报》1996,35(4):442-454
描述了采自新疆准噶尔盆地克拉玛依吐孜沟下侏罗统八道湾组和乌苏县四棵树煤矿之南哈尔沙拉上三叠统小泉沟群直脉科昆虫化石10种。它们被归入3属,其中5种为新种,即:Orthophlebiaexculptasp.nov.,O.coloratasp.nov.,Mesopanorpadensasp.nov,M.monstrosasp.nov.和Protorthophlebiastrigatasp.nov.。对中国的直脉科昆虫进行了详细的讨论。  相似文献   

15.
A total of 52 species belonging to nine genera of the Sepsidae are reported from Vietnam. Of these, six species (Dicranosepsis splendifica sp. nov., D. trochanteris sp. nov., Mucha rectotibialis sp. nov., Perochaeta exilis sp. nov., Sepsis nigriminima sp. nov. and S. silvicola sp. nov.) are described as new to science. Eighteen species are newly recorded from Vietnam. Toxopoda pseudoviduata Ozerov, 2010 is synonymized with T. cavata Iwasa, 2008. The faunal composition of Vietnamese Sepsidae is divided into six groups based on distributional data and discussed. A key to the species of Vietnamese Sepsidae is also provided.  相似文献   

16.
Four new species of the sanguinolenta-group of the genus Macrophya from China are described, namely M. cheni sp. nov., M. yichangensis sp. nov., M. elegansoma sp. nov., and M. reni sp. nov. The species M. cheni sp. nov. and M. yichangensis sp. nov. belong to the koreana-subgroup, while M. elegansoma sp. nov. and M. reni sp. nov. belong to the sanguinolenta-subgroup. The division of the koreana and sanguinolenta-subgroups are briefly discussed. Keys to all known species of the koreana and sanguinolenta-subgroups from China are provided, respectively. The type specimens of new species are deposited in the Insect Collection of Central South University of Forestry and Technology, Changsha, Hunan, China.  相似文献   

17.
In this paper, five new pollen genera and twenty new pollen species of angiospermae from the Late Cretaceous of a certain basin in central China are described. Four new organ genera and their species include: Morinoipollenites normalis gen. et sp. nov., Morinoipollenites minor gen. et sp. nov., Morinoipollenites polyprojectus gen. et sp. nov., Morinoipollenites rhombiformis gen. et sp. nov., Jianghanpollis ringens gen. et sp. nov., Jianghanpollis, mikros gen. et sp. nov., Jianghanpollis radiatus gen. et sp. nov., Jianghanpollis sayangensis gen. et sp. nov., Jianghanpollis arciformis gen. et sp. nov., Myoporumpollonites variabilis gen. et sp. nov., Myoporumpollenites striatus gen. et sp. nov., Lythraites giganteus Yu, Guo et Mao gen. et sp. nov. Lythraites clavatus sp. nov., Lythraites dilutus sp. nov., Lythraites magnus sp. nov., Lythraites varrustriatus sp. nov., Lythraites pachyrrhachis sp. nov.; the new-form genus and its species are: Crassimarginpollenites reticulatus gen. et sp. nov., Crassimerginpollenites mirus gen. et sp. nov., Crassimarginpollenites psilatus gen. et sp. nov. The new pollen genera and their species described herein have been compared in some details with recent pollens and considered their affinity with such recent families as Dipsacaceae, Myoporaceae, Apocynaceae and Lythraceae. According to the age of the pollen-bearing strata, a preliminary discussion is made regarding to the taxonomy of the recent plants families with which our new described pollens are related. Hence, this study may provide some mieropalaeobotanical information for deciphering 'the phylogeny of these plants.  相似文献   

18.
A revision of Hebeloma sect. Indusiata in the Nordic countries has been undertaken. The type species of the genus, Agaricus fastibilis , is interpreted as being a non-veiled species, and therefore sect. Indusiata is the correct name for the section comprising the veiled, non-rooting species of Hebeloma. Subsect. Amygdalina subsect. nov. is proposed for species in sect. Indusiata possessing amygdaloid, dextrinoid spores. The following new taxa and combinations are proposed: Hebeloma mesophaeum var. crassipes var. non., H. mesophaeum var. lacteum nom. et stat. nov., H. polare sp. nov., H. sordescens sp. nov., H. atrobrunneum sp. nov., H. monticola sp. nov. and Agrocybe elatella comb. nov.  相似文献   

19.
Four new species, belonging to three genera, of ostracods from Lake Tanganyika are described: Mesocyprideis nitida sp.nov., Romecytheridea belone sp.nov., R. plegma sp. nov. and Cyprideis loricata sp. nov. The Cyprideis species flock of Lake Tanganyika now consists of 17 formally described species (16 endemic) in 6 genera (4 endemic). The geographical and ecological distribution of the four species is briefly discussed and some supplementary remarks on the radiation of the Cyprideis species flock in Lake Tanganyika are offered.  相似文献   

20.
This is the second part in a series of taxonomic studies on the family Lecithoceridae (Lepidoptera: Gelechioidea) of New Guinea. A new genus, Hamatina gen. nov., is described, based on the type species, H. hemitoma (Diakonoff), comb. nov., and four new species are described: H. nabangae sp. nov., H. robdevosi sp. nov., H. jembatana sp. nov., and. iriana sp. nov. A key to four allied genera is given. Adults, heads, labial palpi, wing venations, and the male genitalia are illustrated.  相似文献   

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