四川自贡晚侏罗世西蜀鳄一新种

记述了四川省自贡市汇东新区自贡市乳品厂发现的西蜀鳄一新种——周氏西蜀鳄(Hsisosuchus chowi sp.nov.)。新种区别于西蜀鳄已知种的特征是:鼻骨后部沿缝合线有一浅的纵凹,额骨的眶缘向上凸起成嵴,沿额骨缝合线也隆起成一微弱的纵嵴,上颞窝的内侧缘向上凸起呈明显的嵴,顶骨具一前中突,侧视颧骨腹缘呈明显的波曲状,眶后骨前侧角约90°,鳞骨后侧突特别拉长,向侧下后方伸展,使鳞骨侧缘明显向内侧弓曲,左右外枕骨的枕髁部分不相接,翼骨的腹中嵴源于翼骨主体部分,内鼻孔位置比较靠前。此外,齿骨外面和夹板骨腹面具有发达的沟和嵴状雕饰,夹板骨参与下颌联合的部分比较长,肩胛片异常扩展,乌喙骨远端宽于近端,肱骨头增厚并强烈向内侧扩展,三角肌嵴发达,桡侧腕骨具发达的尺骨突,尺侧腕骨远端宽于近端,6列荐前部腹部骨板和3列尾部腹部骨板,也可能是周氏西蜀鳄的衍生特征,但这些性状在大山铺西蜀鳄中情况不明,有待更多的材料来证实。杨钟健、周明镇(1953)在建立西蜀鳄属之初就已注意到西蜀鳄是一种特化的鳄类,认为西蜀鳄不仅将原始特征和进步特征混存于一身,而且还具有一些一般鳄类所没有的独特性质。以此为基础,他们建立了西蜀鳄科。目前西蜀鳄类动物发现并不多,仅有1属2种,即重庆西蜀鳄和大山铺西蜀鳄,而且材料不完整,特别是头后骨骼保存不理想。周氏西蜀鳄的发现不仅扩大了西蜀鳄类的分布范围,而且还增加了我们对这一特化鳄类的认识。     

拟凹背蝗属二新种：蝗总科：斑腿蝗科

本文在四川省大山地区采到拟凹背蝗属２新种,即凉山凹背蝗Ｐｓｅｕｄｏｐ－ｔｙｇｏｎｏｔｕｓ ｌｉａｎｇｓｈａｎｅｎｓｉｓ ｓｐ．ｎｏｖ。及相岭拟凹背蝗Ｐｓｅｕｄｏｔｙｇｏｎｏｔｕｓ ｘｉａｎｇｉｌｎｇｅｎｓｉｓ,ｓｐ ．ｎｏｖ。     

四川自贡化石木研究

研究了发现于四川省自贡市距著名的大山铺恐龙化石坑０．５～３ｋｍ处的几株化石木。它们的地质时代与大山铺恐龙动物群相同,地层层位大致相当,属于中侏罗世的下沙溪庙组和新田沟组。根据解剖结构特征,确定它们属于原始的松柏类植物———南洋杉型木属中的一个新种,命名为自贡南洋杉型木新种（ＡｒａｕｃａｒｉｏｘｙｌｏｎｚｉｇｏｎｇｅｎｓｉｓＤｕａｎｓｐ．ｎｏｖ．）。化石木的发现对探讨恐龙的生活环境有重要的意义。     

西蜀鳄(Hsisosuchus)的系统发育关系

本文简介了分支系统学意义上的鳄型动物（CrocodylomorphaWalker．1970）的组成。首次应用分支系统学方法讨论了重庆西蜀鳄的系统发有关系。本文的结论否定了西蜀鳄和西贝鳄类系统关系相近的论点,并认为前者比后者要原始得多,它是Mesoeucrocodylia中最原始的代表之一。     

四川西部云南鳅属鱼类一新种记述：鲤形目：鳅科

本文报道产于四川西部安宁河（属雅砻江支流）的云南鳅属Ｙｕｎｎａｎｉｌｕｓ鱼类一新种,命名为四川云南鳅,新种Ｙ．ｓｉｃｈｕａｎｅｎｓｉｓｓｐ．ｎｏｖ．,详细葶了新种的形态特征,并与近似种进行了比较。     

云南曲靖地区下泥盆统小肢鱼(Microbrachius)化石的新发现

记述了胴甲鱼类（ａｎｔｉａｒｃｈｓ）。肢鱼一新种,穿洞小肢鱼（Ｍｉｃｒｏｂｒａｃｈｉｕｓ ｃｈｕａｎｄｏｎｇｅｎｓｉｓｓｐ．ｎｏｖ．）。该化石发现于云南曲靖下泥盆统上部穿洞组,其时代大致与埃姆斯期（Ｅｍｓｉａｎ）相当。新种在以下 ３点与中华小肢鱼（Ｍ． ｓｉｎｅｎｓｉｓ）明显不同： １）个体明显小于中华小肢鱼;２）新种前中背片为三边形,举穴宽;３）新种纹饰在背甲上由纵向排列细而密的嵴组成。新种由于具有较大的中腹片和嵴状纹饰上没有启状突起,因而与小肢鱼的属型种Ｍ． ｄｉｃｋｉ不同。     

中国花翅跳小蜂族二新纪录属和二新种(膜翅目:跳小蜂科)

描述了跳小蜂２新种,好寄生蜚蠊Ｂｌａｔｔａｒｉｄ的弯带敌蟑跳小蜂,新种Ｄｉｃａｒｎｏｓｉｓ ｓｉｎｕａｔｉｓ Ｘｕ,ｓｐ．ｎｏｖ．和采自陕西杨陵寄生寄蝇Ｔａｃｈｉｎｌｄ的斜棒蝇克跳小蜂,新种Ｅｘｏｒｉｓｔｏｂｉａ ｈｌｉｎｏｃｌａｖａｌａＸｕ,ｓｐ．ｎｏｖ．。敌蟑跳小蜂属Ｄｉｃａｒｎｏｓｉｓ Ｍｃｒｃｅｔ和蝇克跳小蜂属Ｅｘｏｒｉｓｔｏｂｉａ Ａｓｈｍｅａｄ在我国为新纪录属。     

横断山区斑腿蝗科二新种（直翅目：蝗总科）

１９９５年７—８月,在云南省西部横断山地区采到斑腿蝗科昆虫二新种,即高黎贡山凸额蝗,新种Ｔｒａｕｌｉａｇａｏｌｉｇｏｎｇｓｈａｎｅｎｓｉｓｓｐ．ｎ．及苍山拟裸蝗,新种Ｃｏｎｏｐｈｙｍａｃｒｉｓｃａｎｇｓｈａｎｅｎｓｉｓｓｐ．ｎ．     

威Yao属一新种及阔Yao属在我国的发现：（昆虫纲：弹尾目）

描述了采自上海地区的威Ｙａｏ属一新种Ｗｉｌｌｅｍｉａｓｈａｎｇｈａｉｅｎｓｉｓ,产报道中国新纪录种厚角阔Ｙａｏ ＯｎｃｏｐｏｄｕｒａｃｒａｓｓｉｃｏｒｎｉｓＳｈｏｅｂｏｔｈａｍ１９１１,新种模式标本存放于中国科学院上海昆虫研究所标本馆。     

四川省阳蝇属三新种：双翅目：蝇科

阳蝇属三新种,双鬃阳蝇,新种Ｈｅｌｉｎａｄｕｐｌｉｃｉｓｅｔａｓｐ．ｎｏｖ;大斑阳蝇,新种Ｈｅｌｉｎａｍａｇｎｉｍｕｃｕｌａｔａｓｐ．ｎｏｖ。欢愉阳蝇,新种Ｈｅｌｉｎｉａｈｅｓｔａｓｐ．ｎｏｖ。模式标本Ｉ号存华西医科大学,Ⅱ,Ⅲ号存在于雅安地区卫生防疫站。     

NEW MATERIAL OF HSISOSUCHUS CHUNGKINGENSIS FROM SICHUAN, CHINA

AnewspecimenofHIitoIuchuschungkingensis,inc1udingthecraniumandmostofthep0stcranium,wascollectedbyone0fus(X.-M-Li)inearlyl960sfr0mthJurassicsandstoneoftheSangqia0area,Yongchuancounty,about60kmsouthwesIofChongqing.Thisspecimenpr0babIyrepresentsayoungadult0rasubadu1t,a5indicatedbyitssmal1size(lessthan2/3length0fthetype,basedontheskul]proportion)andopensuturesbetweenpalatalelements.lnthepresentpaperwewillredescribeH.chungkingensisindetailbasedonb0ththetypeandnewlydis-coveredspecimensinordertoc…     

广西东部早泥盆世晚期盔甲鱼类一新属

描述了产自广西东部平乐下泥盆统贺县组的一脊椎动物群中的无颌类化石,建立了盔 甲鱼类的一新属、新种──平乐圆盘鱼（Ｄｉｓｃａｓｐｉｓ ｐｉｎｇｌｅｎｓｉｓ ｇｅｔ． ｅｔ ｓｐ． ｎｏｖ．）。圆盘鱼鳃囊 数目多达３２对。同层产出的尚有保存较完好的胴甲鱼目中华鱼科化石。该动物群的发现为 华南区早泥盆世晚期脊椎动物群的演化及其生物地层的对比提供了重要依据。     

Dolichopteryx rostrata, a new species of spookfish (Argentinoidea: Opisthoproctidae) from the eastern North Atlantic Ocean

A new species, Dolichopteryx rostrata, is described on the basis of a single specimen (66.2 mm in standard length) collected west of the Hebrides Islands, eastern North Atlantic Ocean. The new species is characterized by an elongate snout and head, small pouchlike eyes, an adipose fin, short dorsal fin base, anal fin base originating under dorsal fin base, a clear longitudinal suborbital brownish band extending forward from behind posterior margin of orbit to snout tip, and 41 (=26 + 15) vertebrae. Total fecundity is low; the ovarian eggs number only 473, despite the ovary having developed ova. Ovarian eggs could be clearly subdivided into an “undeveloped group” (0.1–0.7 mm diameter classes, n = 405) and a “developed group” (0.9–1.3 mm classes, n = 68), based on their frequency distribution. Supplementary material to this paper is available in electronic format at http://dx.doi.org/10.1007/s10228-005-0306-2     

四川自贡大山铺孙氏鳄属(Sunosuchus)一新种

记述了在四川自贡大山铺发现的孙氏鳄一新种———蜀南孙氏鳄 (Sunosuchusshunanensissp .nov .)。新种窄长的吻部 ,小的颅顶平台 ,额骨沿中线具一纵嵴 ,一对裂隙状的前腭孔位于眶下孔之前方 ,方骨腹面的嵴B特别发育等 ,与孙氏鳄的其他种很相似 ,但新种的吻部特别窄长 ,为吻后部长度的 3倍 ,上颌凹特别发育 ,颅顶平台短而宽 ,颞间部宽度大于眶间部宽度 ,泪骨在眼眶前缘处隆起成嵴 ,下颞孔小 ,呈裂隙状 ,鳞骨侧缘不增厚 ,也无附着上耳盖的沟嵴状构造 ,基枕骨侧缘和外枕骨内腹缘具一明显的隆嵴等 ,与孙氏鳄的其他种有明显区别     

裴氏金线鱼的重新描述及其与近似种横斑金线鱼的形态学比较(英文)

裴氏金线鱼和横斑金线鱼是金线鱼属中 2 种重要的经济鱼类,广泛分布于我国的东南沿海及印度太平洋海域。由于这 2 种金线鱼外部形态十分相似,导致其分类鉴定非常困难。尽管过去有些学者曾经对它们分别进行过形态描述,但是目前文献中仍存在许多同物异名及鉴定错误,特别是在中国这 2 种鱼类的命名和鉴定始终未能形成统一的共识。本文对裴氏金线鱼和横斑金线鱼进行了形态学比较研究,发现裴氏金线鱼和横斑金线鱼在体型、体色、背鳍及鳃弓的形状等特征上存在明显差异。金线鱼属是我国重要的渔业种类,研究它们的形态分类学特征并进行准确的物种鉴定,对该属鱼类单一种类的资源评估和资源保护具有重要意义。     

Raja koreana, a new species of skate (Elasmobranchii, Rajoidei) from Korea

A new rajid species,Raja koreana, is described from a single adult female specimen, 735 mm in total length, collected off the southwestern coast of the Korean Peninsula. AlthoughR. koreana is included in the group of species characterized by the scapulocoracoid lacking an anterior bridge and having the postventral fenestra expanded, it is unique among the latter in possessing: pectoral girdle propterygium not extending to snout tip; rostral shaft of neurocranium narrow and thick, unsegmented base with filamentous cartilage; snout fleshy; pores of ampullae of Lorenzini densely distributed over much of ventral surface to behind cloaca; most thorns on tail directed anteriorly; tail short; a pair of longitudinally elongated black blotches on middle of dorsal surface of disc when fresh; a pair of black blotches (grayish at center) posteriorly on pectoral fins; ventral surface of dise uniformly blackish-brown, except for areas around pores.     

The Late Triassic Phytosaur Mystriosuchus Westphali, With A Revision of the Genus

Mystriosuchus westphali is based on a large, well-preserved cranium and a snout fragment from the Stubensandstein (Norian) of south-west Germany. The hypodigm is redescribed and new or poorly known cranial structures in phytosaurs are discussed. For the first time, the presence of a premaxillary crest is substantiated in a phytosaur. The type specimen shows a supernumerary occipital element (='tabular') that is probably fused to the parietal in other phytosaurs, and an orbitosphenoid. A computerised parsimony analysis confirms the hypothesis that Mystriosuchus is nested within Pseudopalatinae, the most derived clade of phytosaurs, and thus does not fall within basal phytosaurs. Mystriosuchus is characterised by five unique features (slit-like interpremaxillary fossa, triangular cross-section of the postorbito-squamosal bar, strongly reduced posttemporal fenestra, and two features of the cranial sculpture), plus eight synapomorphies that also occur in some more distantly related taxa. Mystriosuchus westphali is diagnosed by, among other apomorphies, a distinct premaxillary crest, a squamosal-proo¨tic contact, absence of a posterior process of the squamosal, and a slit-like posttemporal fenestra. The type species Mystriosuchus planirostris shows, most significantly, the naris facing forward anteriorly and upward posteriorly, and the longest rostrum and the highest degree of depression of the supratemporal opening in any phytosaur. Mystriosuchus exemplifies a common pattern in phytosaurids in being a genus that includes a gracile, elongated, slender-snouted and a more robust species with a broader, often crested snout. This study demonstrates that a detailed analysis of the cranial anatomy and the rigorous application of cladistic principles to identified character states help to clarify current inconsistencies in the taxonomy and nomenclature of phytosaurs.