A new species of Hyalella from Colombia,and the redescription of H. meinerti Stebbing, 1899 from Venezuela (Crustacea: Amphipoda)

The new species H. quindioensis is described from Colombia. This species is close to H. paramoensis Andres, 1988 also in Colombia. Hyalella meinerti Stebbing, 1899 is figured and redescribed. The type locality for this species is Venezuela. However, it has a wide distribution including Colombia, Peru, Ecuador and Brazil.     

哥伦比亚普图马约盆地重力场与白垩系分布特征

为了研究普图马约盆地白垩系分布特征,收集、整理、分析了盆地内相关重力资料,并综合地质、钻井等资料对其进行处理解释.通过对普图马约盆地布格重力异常、剩余重力异常、重力垂向二阶导数特征等分析以及对剖面定量拟合结果的研究,发现普图马约盆地重力异常等值线宏观走向为NE向、NNE向,盆地内重力高低相间分布,自西向东发育4个重力梯级带,将盆地分为2个重力高带和3个重力低带,形成"两隆三凹"的构造格局.认为普图马约盆地主要构造为NE向.盆地西部隆起和东部隆起基底较浅,其上覆地层厚度较薄;西部凹陷、中部凹陷、东部凹陷基底较深,其上覆地层密度低、厚度较大.盆地西部凹陷以及中部凹陷的中、北部白垩系发育,有丰富的烃源岩,为进一步勘探的有利区域.     

A monitoring system for the social development program in Colombia

This paper describes and analyzes “the Social Solidarity Network” (SSN), which is an agency of the Office of the President of the national government of Colombia. Its purpose is to promote self-development programs in the poorest communities in the country, as well as to improve their local public decision-making and other organizational mechanisms. The workings of the “monitoring system” used by the SSN, whose design has been inspired by Beer's ideas of monitoring and control, are introduced and discussed (Beer, 1979/1981a,b; Espejo and Harnden, 1989). The paper also offers a brief analysis of the structural mechanisms currently in use for communicating among local government agencies and the other departmental, regional, and national levels of government. This analysis indicates that the national authorities design and supervise the local planning and control mechanisms too closely and often ignore the existence and views of the intermediate recursions of government and the priorities of the local communities. The paper concludes with an assessment of the multi-university-based monitoring system used to follow up the activities and results of the SSN.     

The genus Lilloiconcha in Colombia (Gastropoda: Charopidae)

The name Lilloiconcha Weyrauch, 1965 Weyrauch, W. K. 1965. Neue und verkannte Endodontiden aus Südamerika.. Archiv für Molluskenkunde, 94: 121–134.  [Google Scholar] is used tentatively for South American charopids with a reduced penis, a barely differentiated epiphallus and multicuspid marginal radular teeth. Trochogyra Weyrauch, 1965 Weyrauch, W. K. 1965. Neue und verkannte Endodontiden aus Südamerika.. Archiv für Molluskenkunde, 94: 121–134.  [Google Scholar] is considered to be a synonym of Lilloiconcha. In addition to the widespread Lilloiconcha gordurasensis (Thiele, 1927 Thiele, J. 1927. Über einige brasilianische Landschnecken.. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft, 40: 307–329. Plate 26 [Google Scholar]), Lilloiconcha costulata new species and Lilloiconcha laevigata new species are described from the Cordillera Oriental in Colombia. The distribution of Lilloiconcha gordurasensis in South America is summarized.     

Reflections on the genus Amaga Ogren and Kawakatsu 1990, and description of a new genus of land planarian (Platyhelminthes: Tricladida: Geoplanidae)

Amaga amagensis, the type species of the genus Amaga, and Amaga bogotensis are re-described. Detailed analysis of the morphology of A. amagensis revealed important taxonomic features, such as testes located dorsally to the supraintestinal parenchymal muscular layer, and secretory accumulations opening through the lateral margins of the body. These characters, as well as other morphological features, are discussed, culminating in an emendation of the generic diagnosis of Amaga. Amaga bogotensis exhibits a characteristic set of morphological features, namely an eversible penis, a male atrium lined with large musculosecretory papillae, and independent muscular coats around both male and female atrium. Therefore, a new genus is proposed for this species.     

Two new species of Calima Moreno-González and Villarreal, 2012 (Arachnida: Schizomida: Hubbardiidae) from the Colombian Andes,with a discussion on the male flagellar microsetae of Hubbardiinae

Two new species of short-tailed whip-scorpions (schizomids), Calima embera sp. nov. and Calima nutabe sp. nov. are described based upon collected material from the Natural Park Planes de San Rafael, Risaralda department, and the Natural Reserve El Romeral, Antioquia department, Colombia, increasing the number of known species for the genus to four; an identification key and a distribution map for Calima species, are provided. The voluminous spermathecal lobes in females and the presence of a small dorsal eminence basal to Dm4 in the male flagellum of some species, could represent diagnostic characters for Calima and are therefore included in its diagnosis. The microsetae of the male flagellum of Hubbardiinae, continues be excluded from the setal homologies; we suggest that they must be taken into consideration in a future homology proposal. www.zoobank.org/urn:lsid:zoobank.org:pub:1D3A97A4-29A6-46E2-AD78-EE6C7036D251     

哥伦比亚亚诺斯盆地成藏组合与勘探潜力

为明确亚诺斯盆地的勘探潜力,需对盆地进行成藏组合分析。首先对盆地进行地质评价,然后进行成藏组合
评价,最后对每个二级成藏组合的油气地质特征和资源潜力进行研究,指出下一步的勘探方向。亚诺斯盆地成藏条件
优越,根据储层含油气情况,将盆地划分为证实的中部、潜在的上部和下部共3 套一级成藏组合。根据盆地的构造、生
储盖与油气富集特征等6 项原则,进一步将中部成藏组合划分为上白垩统、古新统、始新统和渐新统4 套二级成藏组
合。研究认为,盆地所有成藏组合内待发现可采资源量为3.06×108 t 油当量,以上白垩统成藏组合的资源规模最大。
对于盆地下步勘探,应以上白垩统和始新统成藏组合为主,内斜坡带和前渊带为主要目标区带。首次应用的成藏组合
分析步骤和划分原则等研究方法对其他盆地的成藏组合研究具借鉴作用。