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1.
Begonia (sect.Begoniastrum)mariannensis is described, illustrated, and compared with its closest relative,B. glandulifera Griseb., likewise from Trinidad. The new taxon differs markedly in its much smaller habit, distinctly differently shaped leaf blades, and its much-reduced peduncles.  相似文献   

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Strophidon McClelland is a muraenid genus with characteristic appearance of a very elongated body, a large mouth cleft and anteriorly placed eyes. The nomenclature and taxonomic history of species within Strophidon are contentious and its members are easily misidentified. In the present study, species of the genus Strophidon are revised based on morphological and molecular data, and five species are considered valid, including S. dawydoffi Prokofiev, S. dorsalis (Seale), S. sathete (Hamilton), S. ui Tanaka and a new species, S. tetraporus. Strophidon tetraporus sp. nov. is described based on 15 specimens from Indonesia, the Philippines, Taiwan and Vietnam with the unique characteristic of the constant presence of the fourth infraorbital pore among species of Strophidon. The intraspecific variation of vertebral formula within S. dorsalis is discussed based on molecular data. Muraena macrurus Bleeker and Thyrsoidea longissima Kaup are synonyms of S. sathete that can be distinguished from the most similar congener S. ui by a longer tail, smaller eyes and more inner maxillary and inner dentary teeth. A key to identify species of Strophidon is provided. The distribution and maximum size of each species are also re-evaluated.  相似文献   

4.
ABSTRACT

The Caribbean blepharicerid fauna comprises three described species: Paltostoma palominoi Hogue and Garces, 1990, found in eastern Cuba; P. agyrocincta Curran, 1927, widespread in Puerto Rico; and P. schineri Williston, 1896, which occupies most major islands of the Lesser Antilles. In this paper, we describe P. portoricensis Hogue and Courtney, sp. n., a second species from Puerto Rico. We also provide keys to adults, pupae, and larvae of known Caribbean species, re-describe P. argyrocincta and P. schineri, and present a brief discussion of the bionomics and phylogenetic affinities of the net-winged midge fauna.  相似文献   

5.
The type species of the genera Mysella Angas, 1877, RochefortiaVélain, 1878, Rochefortula Finlay, 1927 and AltenaeumSpaink, 1972 are illustrated and discussed. A new genus Kurtiellais introduced for ‘Mysellabidentata (Montagu,1803) and other European species currently placed in Mysella.These species display a unique diagnostic character state inhaving the cardinal platform deeply receding to house the internalligament, along with an array of more general montacutid traits.At the species level, diagnostic characters are given for thetype species K. bidentata, and for other included species K.ovata (Jeffreys, 1881), K. pellucida (Jeffreys, 1881), K. triangularis(Watson, 1897) and K. tumidula (Jeffreys, 1866), based mostlyon characters of the prodissoconch and on shell outline. Montacutasimillima Smith, 1892, from St Helena, is considered a juniorsynonym of K. pellucida. The loss of labial palps in K. tumidulais interpreted as a further derived character, which does notconflict with the generic placement in Kurtiella. (Received 28 August 2007; accepted 1 December 2007)  相似文献   

6.
Reinhardtia paiewonskiana, a previously undescribed species endemic to the Dominican Republic, is formally described and represents the first record for the genus in the West Indies.  相似文献   

7.
A very small species of Botryocladia (Rhodophyta-Rhodymeniales), notable for the spinose projections on the surface cells of the vesicles, is here described as B. spinulifera sp. nov. from the Bahamas and the American Virgin Islands.  相似文献   

8.
Marusik YM  Koponen S 《ZooKeys》2010,(59):15-37
Eight species attributed to Tmeticus are reviewed; five are redescribed and illustrated: Tmeticus affinis (Blackwall, 1885), Tmeticus bipunctis (Bösenberg & Strand, 1906), Tmeticus nigriceps Kulczyński, 1916, Tmeticus ornatus (Emerton, 1914) and Tmeticus tolli Kulczyński, 1908. The new genus, Paratmeticus gen. n. is erected for Tmeticus bipunctis, and a new combination is established: Paratmeticus bipunctis (Bösenberg & Strand, 1906), comb. n. Three species names: Gongylidium vile Kulczyński, 1885, syn. n., Tmeticus difficilis Kulczyński, 1926, syn. n. and Tmeticus dubius Kulczyński, 1926, syn. n., are synonymized with Tmeticus tolli Kulczyński, 1908. Although Gongylidium vile has date priority over Tmeticus tolli it is synonymized because of the lack of usage. Three species from Japan attributed to Tmeticus: Tmeticus neserigonoides Saito & Ono, 2001, Tmeticus nigerrimus Saito & Ono, 2001 and Tmeticus vulcanicus Saito & Ono, 2001 are not related to Tmeticus affinis, the type species of the genus, and their affinities remain unclear. The male of Tmeticus nigriceps is described for the first time.  相似文献   

9.
The cleptoparasitic bee genus Townsendiella Crawford (Nomadinae, Townsendiellini) is a rare group restricted to the southwestern United States and adjacent Mexico, whose taxonomy and biology remain poorly known. This paper describes Townsendiella ensifera sp. n., the first known record of this genus from Pinnacles National Park. A key to the species of the genus is provided. Several potential areas of future research are also discussed.  相似文献   

10.
Distoechodon species are widely distributed in rivers of southern China. Previous studies recognized only two species in the genus, viz., D. tumirostris and D. hupeinensis. A morphological analysis of 164 specimens from different localities permits recognition of four species. Distoechodon tumirostris is mainly restricted to small coastal rivers in the Zhejiang Province. Distoechodon multispinnis is widely distributed in the Chang Jiang and Zhu Jiang basins. Distoechodon compressus is known only from the Fujian and Jiangxi Provinces, and Taiwan. Distoechodon macrophthalmus, the new species, is known only from the Chenghai Lake, Chang Jiang basin in Yunnan Province.  相似文献   

11.
A revision of the genus Astrocharis Koehler (Echinodermata: Ophiuroidea: Asteroschematidae) is based on 41 specimens, including three syntypes of Astrocharis virgo Koehler, one syntype of Astrocharis ijimai Matsumoto and the holotype of Astrocharis gracilis Mortensen. Astrocharis gracilis is a junior subjective synonym of A. ijimai. A. virgo and A. ijimai are redescribed. A new species, Astrocharis monospinosa is described from southwestern Japan. A tabular key to the three species of the genus Astrocharis is provided.  相似文献   

12.
New material from the Atlantic sector of the Antarctic Ocean allows a revision of the Antarctic genus Notaeolidia Eliot, 1905. One new species (Notaeolidia schmekelae sp.n.) is described. N. depressa Eliot, 1905 and N. gigas Eliot, 1905, which arc poorly known, arc redescribed. N. rufopicta Thiele, 1912, N. robsoni Odhner, 1934, N. subgigas Odhner, 1944, N. alutacea Minichev, 1972 and N. flava Minichev, 1972 are synonymized with N. depressa. N. purpurea Eliot, 1905 is synonymized with N. gigas. The monogeneric family Notaeolidiidae Odhner, 1926. is characterized by the following autapomorphy: "nephroproct in front of the genital apertures". Too little is known to elaborate the phylogenetic position of the family Notaeolidiidae within the cladobranch Nudibranchia.  相似文献   

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Borassus akeassii Bayton, Ouédraogo & Guinko sp. nov. (Arecaceae) is described as a new species from western Burkina Faso in West Africa. It has been confused with the widely distributed African species B. aethiopum and more recently with the Asian B. flabellifer . However, it is distinguished by its glaucous, green leaves with weakly armed petioles and a characteristic pattern of lamina venation. The fruits have a pointed apex and are greenish when ripe, and the flowers of the pistillate inflorescence are arranged in three spirals. The pollen has a reticulate tectum and distinctive ornamentation. The distribution of B. akeassii is discussed and the status of the varieties of Borassus aethiopum (var. bagamojensis and var. senegalensis ) is examined.  © 2006 The Linnean Society of London, Botanical Journal of the Linnean Society , 2006, 150 , 419–427.  相似文献   

15.
Vanzosaura rubricauda (Boulenger, 1902) is a small‐bodied gymnophthalmid lizard widespread in dry biomes of South America. Throughout its distribution, V. rubricauda populations experience contrasting environmental conditions, and a marked disjunction occurs in the central portion of the Cerrado biome. Previous studies indicate that V. rubricauda may be a species complex, and here we used mitochondrial DNA data and external morphology to test for population differentiation and its systematic implications for the genus. We found three geographically cohesive groups recovered as well resolved, and strongly supported mitochondrial DNA (mtDNA) haploclades that are differentiated with respect to morphometry, meristics, and colour pattern. In light of the observed differences, we propose a new taxonomic rearrangement of the genus, where we: (1) restrict V. rubricauda to Chaco and western Cerrado regions; (2) resurrect V anzosaura multiscutata (Amaral, 1933) comb. nov. for Caatinga populations; and (3) describe V anzosaura savanicola sp. nov. for the eastern Cerrado region of Brazil. The new species is diagnosed from its congeners by having longer limbs and tail, fewer smooth subcaudals, and genetic distances ranging from 5 to 13%. The new species, along with other recent discoveries, highlights the Jalapão‐Serra Geral region as one of the most important areas of endemism for Cerrado squamates. © 2014 The Linnean Society of London  相似文献   

16.
Tetsuo Koyama 《Brittonia》1977,29(2):237-239
Eleocharis liogieri, described as new from Santo Domingo and the Lesser Antilles, belongs to sect.Tenuissimae in the Cyperaceae.  相似文献   

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18.
A syllid species new to science is described from intertidal sandy sediments on the cast coast of India, for which a new genus is erected: Psammosyllis aliceae gen. et sp.n. Incorporation into either the Eusyllinae or the Exogoninae is unresolved, because it possesses characters of both of these poorly defined subfamilies.  相似文献   

19.
Questidae is a poorly known polychaete family with many unusual characters, particularly with regard to its reproductive organs. Its taxonomic position remains uncertain, which can be partly referred to the limited material described to date. New material, mostly from shallow sublittoral sediments, shows that questids have a circummundane distribution. Questa Hartman, 1966 is revised to include Novaquesta Hobson, 1970 as a junior synonym. Eight species of questids are assigned to Questa , four of them are new to science: Questa bicirrata sp. n., Q. paucibranchiata sp. n., Q. mediterranea sp. n., and Q. riseri sp. n. Character patterns of the questid polychaetes described so far are cladistically analysed. The limitation of informative characters causes ambiguity in the most parsimonious reconstruction of the phylogeny of the family, and therefore, the Questidae is proposed to be classified as comprising only one genus.  相似文献   

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