On Lecane tanganyikae new species (Rotifera: Monogononta, Lecanidae)

A new species of rotifer, Lecane tanganyikae n.sp., is described from the littoral of Lake Tanganyika and some water bodies in the plain of the Rusizi river near Lake Tanganyika, Bujumbura Province, Burundi. The affiliation of the new species, especially in relation to L. elsa Hauer, is discussed.     

On four new tropical and subtropical Lecane (Lecanidae,Monogononta, Rotifera)

Four new tropical/subtropical species of Lecane are described. L. abanica n. sp. is recorded from Saudi Arabia and the Comoro Islands; L. minuta n. sp. and L. spiniventris n. sp. from the Sultanate of Brunei, and L. nelsoni n. sp. from Brazil. An attempt is made to include characters of the trophi in the diagnosis of these Lecane.     

Notholca dongtingensis (Rotifera: Monogononta: Brachionidae), a new species from Dongting Lake,China

Notholca dongtingensis n.sp. was found in the second largest lake of China, Dongting Lake. It is related to Notholca labis Gosse, 1887 and N. kozhovi Vassilijewa & Kutikova, 1969. Its main distinguishing taxonomic features are a square-oval lorica, very short anterior spines, anterior lateral spines curving outwards and protrusile posterior margin of the ventral plate. This revised version was published online in July 2006 with corrections to the Cover Date.     

Rotifera from Burundi: the Lepadellidae (Rotifera: Monogononta)

We studied the distribution of Lepadellidae (Rotifera) in freshwater habitats in the floodplain of the River Rusizi in northwest Burundi. Twenty-three species belonging to ColurellaBory de St. Vincent, 1824 (3 species), Lepadella Bory de St. Vincent, 1826 (18 species) and Squatinella Bory de St. Vincent, 1826 (2 species) are recorded, 22 of them are new to Burundi. One of the taxa encountered probably represents an unnamed species. Lepadella arabicaSegers & Dumont, 1993 is recognised as junior subjective synonym of Lepadella eurysterna Myers, 1942 (syn. nov.). Most of the taxa recorded are cosmopolitan or tropicopolitan, two are restricted to the tropical regions of the Old World and Australia, and one, Squatinella lunata Segers, 1993 is an Ethiopian endemic.     

On species of genus Lepadella (Eurotatoria:Monogononta:Colurellidae) from North-Eastern India,with remarks on Indian taxa

Ten species of Lepadella Bory de St. Vincent, 1826, including one new species and one new form, are documented from North-Eastern India. Two of these species are new records from this country and six are new reports from N.E. region. Comments are also made on the status and distribution of various Indian taxa.     

On a new species of Keratella (Rotifera: Monogononta: Brachionidae)

A new species of planktonic rotifer, Keratella sinensis n.sp.is described from Lake Yaoquan, Heilongjiang, P.R. China. Itprobably also occurs in the Republic of Korea and Japan. The newmorphospecies is characterised by an unusually smooth lorica, andstrongly reduced lateral anterior spines. It is the first exampleof a planktonic freshwater rotifer, endemic to North EastAsia.     

A biogeographical analysis of rotifers of the genus Trichocerca Lamarck, 1801 (Trichocercidae,Monogononta, Rotifera), with notes on taxonomy

An analysis of distribution patterns reveals a unique group of Nearctic endemics in Trichocerca Lamarck, 1801. This group, comprising 13.4% of all taxa analysed in the genus, is of diverse origin. A glacial origin is postulated for one species. The observed biogeographic pattern of eight others, and possibly two New World taxa, suggests a pre-Pleistocene origin followed by differential extinctions during glaciations in the Nearctic and Palaearctic. In general, endemism in Trichocerca is strongly biased towards the Northern hemisphere, with no endemism in tropical regions. This suggests a Laurasian origin of the genus. The analysis further reveals a majority (65.7%) of widely distributed taxa, with strict cosmopolitanism in more than a third of the species analysed. Latitudinal variation is evident in 26.9% of Trichocerca, and a warm-water preference appears to be indicated for a majority of these. Although the results should be interpreted with caution due to confused taxonomy, a Southern hemisphere, warm-water and Northern hemisphere, cold water component appear to be present. Comments on the taxonomy and distribution of several species are provided, along with illustrations of poorly known species. Suggestions include elevating T. maior (Hauer, 1936) to species rank, and several new cases of synonymy.     

Musculature in three species of <Emphasis Type="Italic">Proales</Emphasis> (Monogononta,Rotifera) stained with phalloidin-labeled fluorescent dye

The musculature in the rotifer species Proales daphnicola, P. reinhardti and P. fallaciosa was stained with phalloidin-labeled fluorescent dye and compared using confocal laser scanning microscopy. All three species share several homologous muscle systems, but each systems detailed morphology varies among the species both concerning appearance, number and location. The obtained results were compared with data from other rotifers and it was concluded that the muscles pars coronalis and the corona sphincter probably represent conditions in Ploima or Monogononta, while incomplete circular muscles and dorsal and ventral trunk retractors might be part of the eurotatorian ground pattern.     

中国颚毛虫兆属一新种（弹尾纲：疣虫兆科）

对颚毛虫兆属Crossodonthina Yosii, 1954做了简要介绍,提供了该属的鉴别特征,记述了采自中国湖南省东安县舜皇山的颚毛虫兆属1新种——周氏颚毛疣虫兆Crossodonthina choui,这是该属在华中地区(湖南)的新记录。新种的正模标本(♂)和2个副模标本(2♂)保存在中南林业科技大学生命科学与技术学院昆虫标本室。     

<Emphasis Type="Italic">Rhinoglena kutikovae</Emphasis> n.sp. (Rotifera: Monogononta: Epiphanidae) from the Bunger Hills,East Antarctica: a probable relict species that survived Quaternary glaciations on the continent

A new species of rotifer, Rhinoglena kutikovae n.sp. (Monogononta: Epiphanidae), is described from a freshwater lake in the Bunger Hills, East Antarctica. The new taxon is characterized by the following combination of characters: body conical to vase-shaped; a single toe; distal foot pseudosegment bulged; tail prominent, semi-circular; two small spherical pedal glands with common duct, forming a complex with caudal ganglion; trophi with seven major teeth with offset head and two smaller teeth without offset head. The new species is compared with R. fertoeensis, R. frontalis and R. tokioensis, of which scanning electron microscopic information is presented of the trophi. R. kutikovae n.sp. is probably a relict species that survived Quaternary glaciations in glacial lacustrine refugia on the Antarctic continent.     

中国拟枝角摇蚊属一新种记述（双翅目：摇蚊科）

记述拟枝角摇蚊属Paracladopelma 1新种:短鞭拟枝角摇蚊P.demissum sp.nov.。该新种触角比AR低,为0.60;肛尖具中肋;第9背板后缘肩形;第9背板带V型;上附器远端膨大,向外侧成三角形突起状,亚顶端具2根大刚毛,且内侧密被小刚毛;抱器端节两侧平行,中部内弯。模式标本存放于南开大学生命科学学院摇蚊学研究室。     

中国贵州长腹寄蝇属三新种记述（双翅目：寄蝇科）

记述采自贵州地区的长腹寄蝇属Dolichocoxys Townsend 3个新种:黄基长腹寄蝇D. flavibasis sp. nov.、黑腹长腹寄蝇D. obscurus sp. nov.和短柄长腹寄蝇D. brevis sp. nov.。文中附所有新种的详细描述、鉴别特征图、近缘关系的讨论及中国长腹寄蝇属分种检索表。新种的模式标本保存于贵州省安顺市疾病预防控制中心医学昆虫研究室。     

Distribution of Brachionidae (Rotifera,Monogononta) in Inner Mongolian Waters

Two-hundred and fourty-six freshwater and saline-alkaline waters in Inner Mongolia, P.R. China were surveyed for Brachionidae. Twenty-nine brachionid morphospecies (33 taxa) are recorded, four are new to China. Some data on their distribution, and comments on selected taxa are provided. Brachionus asplanchnoides (stat.nov.) is reinstated at the morphospecies level. We suggest that this taxon may be used in aquaculture, considering that, by its large size, it extends the size range of brackish-water Rotifera potentially available as food for fish larvae.     

Hastatobythites arafurensis, a new bythitid genus and species from Australia (Bythitidae, Ophidiiformes)

A new genus and species of the subfamily Bythitinae (Bythitidae),Hastatobythites arafurensis, is described on the basis of two specimens from the Arafura Sea. The genus is unique in the subfamily in having two anteriorlydirected spines, one on the frontal and one on the mesethmoid. It is also distinguishable from all other genera in the subfamily by the following combination of characters: head scales absent; squamation on body incomplete; maxillary expanded posteriorly; no thin pore-bearing skin flap over opercle; opercle thin, weak, without distinct spine; jaw teeth conical; vomerine and palatine teeth present; developed gill rakers on 1 st arch 3; pelvic fins with 1 ray in each; pectoral peduncle elongated, with 16 rays; caudal fin rays 12; branchiostegal, rays 8; precaudal vertebrae 15, with tips of 6th to 12th neural spines truncated.     

中国并腹茧蜂属一新种记述（膜翅目：茧蜂科）

记述采自中国黑龙江的并腹茧蜂属Hylcalosia Fischer 1新种——沟腹并腹茧蜂H.ventisulcata sp.nov..该新种与海氏并腹茧蜂Hylcalosia hymaenei Belokobylskij最为相似,但新种的如下特征容易与后者相区别:1)下颚须相当长,可达后足基节处;2)腹部第2-3节背板具1条宽而浅的中纵沟,几乎纵贯2、3背板;3)前翅2-SR脉基部弯曲,后翅m-cu脉对叉式;4)腹部第1背板中长等于端宽。文中修订了该属全世界已知种的检索表。新种模式标本保存于福建农林大学益虫研究所。