Distribution and abundance of hyperiid amphipods in relation to summer mesoscale features in the southern Gulf of Mexico

Seventy-one hyperiid species were identified from 97 zooplanktonsamples collected in the southern Gulf of Mexico during July1988. About 91% of the adult individuals belonged to five species:Lestrigonus bengalensis (86.56% of total hyperiid numbers),Anchylomera blossevillei (1.20%), Phronimopsis spinifera (1.05%),Hyperioides longipes (1.00%) and Hyperietta vosseleri (0.99%).Overall, up to 74% of the hyperiids were collected at night,although a reverse migration was observed in the anticyclones.The mean abundance was 5-fold higher at the neritic stationsthan in the oceanic areas. This tendency was even more markedat night. Night samples yielded about the same number of speciesas during the daytime (56 taxa versus 61). Four mesoscale features(two anticyclones, one cyclone and one upwelling) characterizedthe oceanic mesoscale circulation in the surveyed area. Theabundance of the oceanic hyperiid community showed significantdifferences related to some of the mesoscale features activein the area, i.e. the abundance in the Lazy Eddy anticyclonewas lower than that in the cyclone (day and night). Overall,the upwelling areas showed a tendency to have higher abundancesthan the downwelling features (anticyclones). Cluster analysisindicated neritic–oceanic differences rather than mesoscalefeature-related differences in the local hyperiid community.The neritic community showed differences that were attributedto the effect of upwelling. The summer and spring hyperiid communitieshad important differences in the same area, thus suggestinga seasonal succession of the gulf hyperiid community.     

Revision of the Genus Goodallia (Bivalvia: Astartidae) with the Description of Two New Species

A revision of the Recent species of the genus Goodallia (Astartidae)is presented. Adult shell and prodissoconch morphology of allthe species are described and figured. In total, five speciesare recognized: G. triangularis (Montagu, 1803), G. pusilla(Forbes, 1844), G. macandrewi (Smith, 1881), G. micalii new species,and G. gofasi new species. G. triangularis and G. pusilla are widespreaddistributed in the Atlantic coasts of Europe and North Africa,and in the Mediterranean. G. macandrewi is restricted to thetype locality in the Canary Islands, while what has been calledG. macandrewi from the Mediterranean corresponds to an undescribedspecies here named G. micalii, distributed in the Central andEastern Mediterranean. A second undescribed species from offthe Atlantic Moroccan coast is named G. gofasi, and is knownonly from the type material of station B33 of the expedition CINECA CHARCOT III. The named forms, variability and distributionof G. triangularis are discussed. (Received 30 January 1998; accepted 27 August 1998)     

中国毛根蚜属研究及新种记述(同翅目：瘿绵蚜科)

中国毛根蚜属研究及新种记述（同翅目：瘿绵蚜科）张万玉,张广学（中国科学院动物研究所北京１０００８０）田士波（河北省农业科学院植物保护研究所保定０７１００１）本文记述采自河北涉县的毛根蚜属一新种：小廖毛根蚜Ｃｈａｅｔｏｇｅｏｉｃａ。ｔｒｉｃｕｌａｔ。、...     

中国狭蚱属分类学综述及一新种记述(直翅目: 短翼蚱科)

系统研究了分布于中国的狭蚱属Xistra的种类, 共计有6种,包括1新种, 即雅安狭蚱Xistra yaanensis sp. nov.。记述了中国己记录种的引证和分布地区, 提供了该属全部种类的分种检索表。新种的模式标本保存于陕西师范大学动物研究所昆虫标本室。     

杰赞姬蜂属研究（膜翅目：姬蜂科）

该文报道在我国发现的杰赞姬蜂属 Jezarotes Uchida 1928 新种：滑杰赞姬蜂 Jezarotes levis Sheng,sp. nov与近似种拓杰赞姬蜂Jtamanukii Uchida 进行了比较。编制了本属世界已知种检索表。模式标本保存在林业部森林病虫害防治总站。     

中国长斑蚜属研究及新种记述(同翅目：斑蚜科)

该文系统研究了中国长斑蚜属Tinocallis Matsumura的15种蚜虫,其中包括:1个新种,短节长斑蚜T. microtylodes sp.nov.和2个中国新记录种,斑长斑蚜T.platani(Kaltenbach,1943)和木兰长斑蚜T. magnoliae Ghosh & Raychaudhuri,1972。同时提供了该属中国分布种类的检索表,每种提供有详细的寄主植物和地理分布资料,新种还提供了重要的形态特征图。所有标本包括模式标本均保存在中国科学院动物研究所。     

中国优食蚜蝇属的研究及二新种记述(双翅目：食蚜蝇科)

１研究历史与现状优食蚜蝇属Ｅｕｐｅｏｄｅｓ是１８７７年由ＯｓｔｅｎＳａｃｋｅｎ建立,但自从Ｍａｔｓｕｍｕｒａ于１９１７年建立后食蚜蝇属Ｍｅｔａｓｙｒｐｈｕｓ以来的近７０年中,许多作者均采用后一属名。Ｆｌｕｋｅ［１］将该属分成２亚属,即后食蚜蝇亚属Ｍｅ...     

Sinistrexcisa, a New Genus of Land Snail from Central West Africa with Four New Species (Gastropoda: Pulmonata: Streptaxidae)

A new genus of Streptaxidae with four new species is describedfrom Central West Africa, viz. Sinistrexcisa cameruniae (typespecies) from Southwest Cameroon, and S. iradieri, S. cogoensisand S. fang from Equatorial Guinea. In addition to the shells,the genital anatomy of three species and the radula of one speciesare described. The species of Sinistrexcisa resemble some taxaof the heterogeneous genus Ptychotrema s.l., but differ conchologicallyby, among others, the extremely long and displaced aperturalsinus and the sinistrally coiled last quarter whorl, and anatomicallyby the morphology of the penis, especially the inner spinulation.A spermatophore was observed in the lower (distal) portion ofthe penis of a specimen of S. fang. This is probably the first recordof a spermatophore in the family Streptaxidae. (Received 9 October 1997; accepted 1 July 1998)     

A NEW SPECIES OF ABYSSOCHRYSOS (GASTROPODA: LOXONEMATOIDEA) FROM THE OMAN MARGIN

A new species of Abyssochrysos, A. xouthos n. sp. is describedfrom south-west Oman in the northern Arabian Sea at a depth of3150 metres. This represents the first record of this genusfrom the northern Indian Ocean. Of the five previously describedextant species of Abyssochrysos A. xouthos is most similar to A.melanioides from which it differs in radular and shell characters. (Received 22 February 1999; accepted 20 May 1999)     

DESCRIPTION OF A NEW SPECIES OF PHYLLIDIOPSIS BERGH (NUDIBRANCHIA: DORIDOIDEA: PHYLLIDIIDAE) FROM THE TROPICAL WESTERN PACIFIC, WITH COMMENTS ON THE ATLANTIC SPECIES

A new species of phyllidiid nudibranch, Phyllidiopsis shireenae,is described. The new species has a middorsal crest insteadof being flattened dorso-ventrally like most phyllidiids. Itsbody is a very pale shade of pink with black bands, and itsrhinophores are salmon pink. The anatomy of the alimentary systemand reproductive system are described. Characters originallyused by Bergh (1875) to differentiate the genus are supportedby this new species. Phyllidiopsis shi-reenae is presently knownfrom coral reef habitats in the extreme western Pacific Ocean.A review of the taxonomic status of the Atlantic specis of Phyllidiopsisis required. ^*Present address: Australian Biological and Environmental Survey.Australian National Parks and Wildlife Service, GPO Box 1383,Canberra. ACT 2601. Australia. (Received 15 August 1989; accepted 8 January 1990)     

中国模尖蛾属研究及二新种记述（鳞翅目：尖蛾科）

研究了中国模尖蛾属Meleonoma Meyrick,其中记述2新种：面模尖蛾 M. facialis Li et Wang, sp. Nov. 和软颚模尖蛾 M. malacognatha Li et Wang, sp. Nov.。绘制了雌雄外生殖器特征图,给出了中国模尖蛾属分种检索表。模式标本保存在南开大学生物系标本室。     

中国拟裸蝗属分类研究及二新种记述（鳞翅目：斑腿蝗科）

记述了我国拟裸蝗属10种, 其中有2新种, 即香格里拉拟裸蝗Conophymacris xianggelilaensis sp. nov. 及九龙拟裸蝗Conophymacris jiulongensis sp. nov., 附有分种检索表和种类分布。模式标本保存于陕西师范大学动物研究所及河北大学博物馆。     

Atebbania Bernasconii, a New Genus and Species from Subterranean Waters of the Tiznit Plain, Southern Morocco (Gastropoda: Hydrobiidae)

The new genus Atebbania is described for a new hydrobiid species,A. bernasconii, which lives in groundwaters of southern Morocco.Of the Hydrobiidae genera with known shell and anatomy Moitessieriais the closest to Atebbania. The two share the following characters:shell elongate; teleoconch surface with evident microsculpture;seminal receptacle absent. Atebbania is distinguished from Moitessieriaby: shell ovate; penis with a) apical stylet, b) one lobe bentdownward on left (inner) side and c) penial duct running nearthe right (outer) side; posterior end of foot indented. Atebbaniabernasconii n. sp., lives in a limited area, the Tiznit plainin southern Morocco. Other stygobiont hydrobiids from otherareas of Morocco are currently being studied. None of them appearsto be closely related to A. bernasconii or to the species ofMoitessieria (Received 10 February 1998; accepted 30 April 1998)     

CONTRIBUTIONS TO THE KNOWLEDGE OF THE GENUS AEGIRES LOVEN, 1844 (OPISTHOBRANCHIA: DORIDOIDEA: AEGIRETIDAE) IN THE NORTH ATLANTIC, WITH DESCRIPTIONS OF TWO NEW SPECIES

New information on Aegires ortizi Templado, Luque & Ortea,1987 is given, and two new species of the genus Aegires aredescribed, one from the Caribbean and one from the MediterraneanSea. A key to the North Atlantic species of Aegires is given. (Received 10 February 1989; accepted 11 July 1989)     

BROODING AND NON-BROODING DACRYDIUM (BIVALVIA: MYTILIDAE): A REVIEW OF THE ATLANTIC SPECIES

The Atlantic species of the marine bivalve genus Dacrydium arereviewed, with particular emphasis on their hinge and protoconchcharacters. The basic groundplan of a Dacrydium comprises afunctional primary ligament, a paired series of primary teeth,and a posterior row of secondary teeth separated from the latterby a secondary ligament; this can be transformed into a singleseries either by loss of the secondary ligament and mergingprimary and secondary teeth, or by loss of secondary teeth andligament through paedomorphosis. Twelve species are recognized, of which eleven are illustrated.One abyssal species is not separable morphologically from theIndian Ocean D. speculum Poutiers, 1989 and is new to the Atlantic;four new species (D. wareni, D. dauvini, D. filiferum and D.balgimi) are described; a Caribbean form which is hardly distinctfrom the Eastern Pacific D. elegantu-lum Soot-Ryen, 1955, isdescribed as a new subspecies D. e. hendersoni. The larvae are brooded in D. hyalinum (Mon-terosato, 1875),D. viviparum Ockelmann, 1983 and D. balgimi. The brooding specieshave larger larvae (protoconch 210 to 315 µm long) thanthe non-brooding (protoconch 120 to 150 µm long), andreach a smaller adult size (1.4 to 3 mm instead of 4.5–5mm). A phylogenetic reconstruction is attempted using parsimonyanalysis of hinge and shell characters as well as the brooding/nonbrooding character. (Received 22 October 1996; accepted 28 November 1996)     

中国的光肩星天牛类群

该文讨论我国光肩星天牛Anoplophoraglabrlpennis(Motschulsky)类群的外部形态和外生殖器的主要鉴别特征,寄主、地理分布、起源及其演化。光肩星天牛主要分布在山西吕梁山、太行山以东的广大平原地区,寄主广泛,主要有榆、复叶槭、杨、柳、五角枫等。黄斑星天牛主要分布在秦岭以北,山西吕粱山太行山以西的陕甘宁地区,向东已扩展到河南、河北;主要为害杨树,也为害柳、榆。四川星天牛主要分布于秦岭以南的西部地区,北限在陕西太白山到甘肃天水一带;主要为害柳。在秦岭以北到天水之间是黄斑星天牛和四川星天牛的重叠分布区,山西太行山两侧南北走向的狭长地带是光肩星天牛和黄肩星天牛重叠分布区,两个狭长地带交会处,大约在秦岭以北的陕西和(或)山西境内有三个种的重叠分布区域.在云、贵、川地区广泛分布着四川星天牛,至今还没有发现光肩星天牛、黄斑星天牛和蓝角星天牛,后者应该是一个值得怀疑的种。