植物在煤矸石堆上的定居

在淮南的煤矸堆上,自然定居植物共８９种,隶属于３５科８０属,主要包括禾本科（１４种、菊科（１６种）、豆科（１０种）,全部植物中,１、２年生草本植物６３种,多年生草本植物１６种,木一植物１０种,影响植物定居的主要因素是物理因子,包括石块大小、表面稳定性、坡度、坡向等等;较好的营养状况对于植物生长有利,风播种子和果实是煤矸石堆上繁殖体的主要来源。     

中国裂唇蜓科Chlorogomphidae记述附二新种描述及—己知种雄性首次记载(蜻蜓目:裂唇蜓科)

裂唇蜓科Chlorogomphidae隶大蜓总科(Cordulegasteroidea),它的一个重要特征是成虫下唇中叶(Ligula.)末端纵裂,故译作裂唇蜓.身体大形,一般标本室里收藏的种类都不多,每一个种的标个数也不多.Needham(1930)汇总前人的记载,报道我国7个种,其中有3个新种.Klots(1947)根据标本,对我国2个已知种作重新描述,包含对一个已知种前所未报道过的相对性别作新的描述.Chen(陈锦文,1950)对我国华东9个种作了厘订,其中有2个新种.他还对Oguma     

中国云南的大理赤蜻,新种(蜻蜓目:蜻科)

该文记述新种大理赤晴Sympetrum daliensis sp.n.:正模(?),配模(?),副模1(?)1(?),云南省,大理,苍山,1998-Ⅶ-26,毛本勇(大理师专)采.模本存大理师专及山西大学.该新种与S.risi相似,主要差异是S.risi的翅胸背面缺背条纹.     

自由基对人精子功能的调控

人类精液中存在着两种产生活性氧（ Ｒ Ｏ Ｓ）的来源——精子和白细胞．这些 Ｒ Ｏ Ｓ在不同水平对精子结构和功能具有不同效应．结合本室成果,综述了 Ｒ Ｏ Ｓ及其清除剂对人精子存活率、运动性和获能等功能的调控及可能的作用机理．提示 Ｒ Ｏ Ｓ在男性生殖生理及病理过程中可能具有重要的生理病理作用,并为 Ｒ Ｏ Ｓ清除剂用于治疗男性不育症及抗男性生育提供理论和临床依据     

A new terrestrial planarian species of the genus Marionfyfea (Platyhelminthes: Tricladida) found in Europe

Small (c. 1 cm long) terrestrial planarians found in the United Kingdom, the Netherlands and France are described as a new species, Marionfyfea adventor sp. nov. Individuals of the new species have a patchy brown external appearance with small, seemingly random pale blue-ish patches. They have multiple eyes, uniserial around the anterior end, biserial or triserial laterally for a short distance then sparsely uniserial and lateral to the posterior end. The anatomy is characterized by five or six pairs of ventral testes and a single pair of ovaries adjacent to the pharyngeal pouch. The base of each ovary is surrounded by parovarian cells. The penis is of the inverted type with a basal hemispherical seminal vesicle. Two adenodactyls, one ventral, one dorsal, are present in the common antrum. The only other known species of Marionfyfea is recorded only from the Auckland Islands, New Zealand and we assume that the new species has been introduced to Europe.

http://zoobank.org/urn:lsid:zoobank.org:pub:7AC3D565-0BEB-4B67-8BEC-11A13A70D663     

An unusual new species of Trechona (Araneae: Mygalomorphae: Dipluridae), from quartzitic caves of the Diamantina Plateau,Minas Gerais,Brazil, with a key to the known species

Trechona diamantina sp. nov. is described from quartzite caves in Diamantina, central Minas Gerais State, Brazil. This represents the largest cavernicolous mygalomorph population ever recorded. The new species is the first Trechona recorded from a xeric habitat, namely the Rocky Fields on the Diamantina Plateau. T. diamantina sp. nov. is closely related to T. uniformis, both species possessing elongated male and female copulatory organs and both constructing distinct funnel-webs and sheet-webs in quartzite formations. T. diamantina sp. nov. is distinct in possessing less elongated embolus and receptacula seminis. A key for all valid species of the genus is given.

http://zoobank.org/urn:lsid:zoobank.org:pub:EB9E66B3-4701-470C-A80D-873E25F52042     

New species and records of the Neoserica (sensu stricto) group (Coleoptera: Scarabaeidae: Sericini)

In this paper we examined newly collected specimens of the Neoserica Brenske, 1894 (sensu stricto) species group housed in Chinese collections. Four new species are described from China: Neoserica (s. str.) mengsongensis Liu & Ahrens, sp. nov. (Yunnan Prov.), Neoserica (s. str.) pseudosangangana Liu & Ahrens, sp. nov. (Guizhou Prov.), Neoserica (s. str.) taibaiensis Liu & Ahrens, sp. nov. (Shaanxi Prov.) and Neoserica (s. str.) yongkangensis Liu & Ahrens, sp. nov. (Zhejiang Prov.). Habitus and the male genitalia are illustrated. Additionally, we provide new distribution records, an updated distribution map and an updated key to the species of the Neoserica (sensu stricto) group.

http://zoobank.org/urn:lsid:zoobank.org:pub:A3C6B300-EAC3-445E-8B14-E1DBB7BBFB7F     

A new large and colourful species of the genus Doto (Nudibranchia: Dotidae) from South Africa

A new species of the genus Doto is described from the Cape Peninsula of the Western Cape Province, South Africa. To date, the genus Doto is probably one of the more complex and poorly defined genera within nudibranchs. The very small body size and very similar external and internal features make this genus problematic and, therefore, poorly studied. Despite the large number of described species around the world, only three species are known to be present in South Africa: Doto coronata (Gmelin, 1791), Doto pinnatifida (Montagu, 1804) and Doto rosea Trinchese, 1881. Morphologically, Doto splendida sp. nov. is easily distinguished from all its South African congeneric species by its conspicuous colouration. In addition, mitochondrial and nuclear genes clearly separate the new species from other species from southern Africa. A molecular phylogeny based on two mitochondrial (COI and 16S) and one nuclear (H3) gene is herein presented. This phylogeny includes all available species of Doto (valid and unidentified) as well as several other traditionally closed related species retrieved from GenBank.

http://zoobank.org/urn:lsid:zoobank.org:pub:3764C38DF6BB-415F-958C-E3132A1A9524     

New Polypheretima and Pithemera (Oligochaeta: Megascolecidae) species from the Mt. Malindang Range,Mindanao Island,Philippines

We describe four new pheretimoid earthworm species, one in Polypheretima and three in Pithemera, from Mt. Malindang, Misamis Occidental Province, Mindanao Island, Philippines, and provide diagrams of external morphology and internal anatomy. Polypheretima mindanaoensis sp. nov. belongs to the Po. elongata species group, characterised by having genital markings on xix and successive segments and pairs of spermathecal batteries in vi and/or vii. It differs from the other members of the Po. elongata species group in having no copulatory bursae. This species shows individual variation in the number of spermathecae in each battery. Individuals that lack spermathecae are presumed to reproduce parthenogenetically. Pithemera malindangensis sp. nov. and Pi. duminagati sp. nov. belong to the Pi. bicincta species group, characterised by having the first spermathecal pores in 4/5. These two species differ in size and in the distance between male pores. Pithemera donvictorianoi sp. nov. belongs to the Pi. pacifica species group, characterised by having the first spermathecal pores in 5/6. This is the only member of this species group so far reported from the Philippines, and this is the only Philippine Pithemera species whose clitellum covers two rather than two and a half segments. Current studies show that worldwide, the Philippines has the highest diversity for Pithemera, with 13 species, followed by Papua New Guinea and the Pacific Islands, each area with six species. Indonesia has the highest diversity for Polypheretima, with 18 species, followed by Vietnam with 13 species, and then Papua New Guinea and the Philippines, each area with eight species. These findings indicate a high degree of endemicity within these areas, suggesting that many species remain to be detected in the Philippines.

http://zoobank.org/urn:lsid:zoobank.org:pub:2198709C-F5E1-4A0D-A185-CA506D206171