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1.
The cribrimorph bryozoan Puellina setosa (Waters) is reviewed, together with a closely related species, Puellina gattyae (Busk), and two new Cribrilaria species from the Mediterranean, C. cassidainsis sp. n. and C. minima sp. n., which present some characters in common with P. setosa and were previously confused with it.  相似文献   

2.
Four new species of Calydiscoides Young, 1969 are described from three species of nemipterids caught off Kemaman, Terengganu, on the eastern coast of Peninsular Malaysia: C. monogrammae n. sp. from Scolopsis monogramma; C. conus n. sp. from S. magaritifer; C. scolopsidis n. sp. from S. margaritifer and S. monogramma; and C. kemamanensis n. sp. from Pentapodus setosus. The present investigation reveals that the squamodiscs (lamellodiscs) are composed of 10-12 short, complete, interlocking and concentric tubular lamellae. The innermost lamella is attached to a pair of adductor muscles.  相似文献   

3.
A study of rather rich and well-preserved material from Upper Albian levels of Site 1050 of ODP Leg 171B led us to review the criteria used in the subdivision of the schackoinids into two genera and to describe a new morphotype, Schackoina leckiei n. sp., the phylogenetic position of which is examined within the group.  相似文献   

4.
Alluvial deposits from the Mue Nam Mum river at Saropée, Khorat Region, Thailand, yielded about 60 wood specimens, attributed to Araucarioxylon sp., Shoreoxylon thaïlandense n.sp., Careyoxylon pondicherriense Awasthi, Terminalioxylon coriaceum Prakash and Awasthi, Terminalioxylon burmense Mädel-Angeliewa and Müller-Stoll, Pahudioxylon sahnii Ghosh and Kazmi, Cynometroxylon schlagintweitii Müller-Stoll and Mädel, and Albizzinium eolebekkianum Prakash. This association, attributed to a Plio-Pleistocene age, evokes a mixed deciduous forest, probably not far from a river and ancient volcanoes. The presence of Araucariaceae in South-Eastern Asia at a relatively recent epoch is pointed out. A comparison with other fossil wood localities reveals close floristic resemblance with Burma, Western Bengal and Kachchh.

Résumé

Une nappe fluviatile de la rivière Mue Nam Mum, gisement de Saropée, région de Khorat, en Thaïlande, a livré une soixantaine de bois fossiles, déterminés comme: Araucarioxylon sp.,Shoreoxylon thaïlandense n.sp., Careyoxylon pondicherriense Awasthi, Terminalioxylon coriaceum Prakash et Awasthi, Terminalioxylon burmense Mädel-Angeliewa et Müller-Stoll, Pahudioxylon sahnii Ghosh et Kazmi, Cynometroxylon schlagintweitii Müller-Stoll et Mädel et Albizzinium eolebekkianum Prakash. Cette association, évoquant une forêt semi-dense, s'est vraisemblablement développée à proximité d'un cours d'eau et d'anciens volcans. Elle est attribuée au Pliocène ou au Quaternaire ancien. La question de la présence d'Araucariaceae dans le Sud-Est asiatique à une époque relativement récente est évoquée. Une comparaison avec d'autres gisements à bois fossiles révèle des ressemblances floristiques avec la Birmanie, le Bengale occidental et le Kachchh.  相似文献   


5.
Twelve species of the family Cyprididae were found in the Upper Miocene of the Turiec Basin, of which three are new - Herpetocypris denticulata nov. sp., H. pusilla nov. sp. et Psychrodromus janzi nov. sp. The occurrence of Mediocypris suggests that ostracods occupied the Turiec Basin since the Middle Miocene. The psychrophilic genera (Psychrodromus and Cavernocypris) provide evidence of cold springs around the lake. In the sediments studied, the Cyprididae are associated with other ostracods that characterise shallow aquatic habitats and a diverse community of both aquatic and terrestrial plants. The sexual paleo-populations of Heterocypris salina (Brady, 1868), Herpetocypris pusilla nov. sp. and Psychrodromus janzi nov. sp. are observed.  相似文献   

6.
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8.
A new species of leporid (Lagomorpha, Mammalia) is described based on the material from the Lower Pleistocene of Cueva Victoria (Murcia, Spain). This species, named Oryctolagus giberti n. sp., presents several intermediate characters between the first known representative of the genus, O. laynensis, from the Middle Pliocene of Spain, and the modern European rabbit (O. cuniculus), specially at the level of the palate, the mandible, the third lower premolar, the ulna, the coxal and the femur. In this respect, Oryctolagus giberti n. sp. is a firm candidate to occupy the vacant phylogenetic place between these two species. It also questions the results of molecular studies that date the divergence of groups A and B of Oryctolagus cuniculus at about 2 Myr ago.  相似文献   

9.
The authors describe Mixtacandona elegans n. sp.,M. pietrosanii n. sp., M. tabacarui n. sp. and present new data on the systematics and biogeography of the following Mixtacandona groups: ljovuschkini,hvarensis and riongessa. Mixtacandona elegans n. sp. belongs to the group ljovuschkini. The carapace is very elongated and has markedly assymetrical valves. The species has been found in a porous aquifer in southeastern Bulgaria. M. pietrosanii n. sp. belongs to the group hvarensis. The 3rd antennular segment and the 2nd endopodial segment of the cleaning leg have each two setae. The species lives in porous aquifers in the Danube plain in Roumania. M. tabacarui n. sp. (gr. riongessa) has a triangular left valve with a pointed dorsal protuberance. The species has been found in wells fed by karstic water in southern dobrodgea (Roumania), on the Black Sea coast.  相似文献   

10.
A microfauna composed of 11 species of ostracodes belonging to 11 genera have been recovered from the Bhanness Formation of Kimmeridgian age, in Central Lebanon. Four species are new and are described herein: Ektyphocythere dahressawanensis nov. sp., Dicrorygma (Orthorygma) libanensis nov. sp., Citrella? elongata nov. sp. and Procytherura inflata nov. sp. From a palaeobiogeographical standpoint, this fauna characterizes the North Gondwana province which differs from the South Gondwana province, particularly by the presence of the genus Schuleridea and the absence of the genus Majungaella.  相似文献   

11.
Jorge Agusti 《Geobios》1981,14(4):543-547
It is described Glis vallensiensis n. sp., which is characterized by its great size, similar to that of the present species Glis glis. It differs of the G. minor-G. sackdillingensis lineage in size and minor features. Glis vallesiensis belongs to the same lineage that Glis sp., from the Upper Miocene beds of Opole (1).  相似文献   

12.
13.
The large mammals from travertine deposits in the Denizli basin include the following species: Archidiskodon meridionalis meridionalis, Equus cf. altidens s. l., E. cf. apolloniensis, Stephanorhinus cf. etruscus, Metacervoceros rhenanus, Cervalces (Libralces) ex gr. minor-gallicus, Palaeotragus sp., Bovinae gen. and sp. indet. This association resembles those from the late Villafranchian of Southern and Eastern Europe, and, to some extent, fromWestern Asia, and could be older than 1.2 Ma.  相似文献   

14.
Abstract. The fruit fly genus Ceratitis (Diptera: Tephritidae) comprises several important pest species attacking a wide range of unrelated fruits. In this paper the subgenus Ceratitis ( Pardalaspis ) Bezzi is revised. Ten species are recognized of which five are described as new: C.(P.)hamata sp.n., C.(P.)munroi sp.n., C.(P.)serrata sp.n., C.(P.)semipunctata sp.n. and C.(P.)zairensis sp.n. A key to both sexes is provided. All species are restricted to the Afrotropical Region and distributional and known host plant data are given.  相似文献   

15.
The examination of gill parasites from èSarotherodon occidentalisè (Daget) (Pisces, Cichlidae) in Guinea and Sierra Leone (West Africa) revealed the presence of seven species of Monogenea. Two of them have previously been described: ichlidogyrus halli; (Price & Kirk, 1967) and Scutogyrus ecoutini Pariselle & Euzet, 1995. Five are considered as new species, all belonging to Cichlidogyrus Paperna, 1960. They are C. bouvii n. sp., C. fontanai n. sp., C. guirali n. sp., C. paganoi n. sp. and C. sanjeani n. sp.Résumé L'examen des parasites branchiaux de Sarotherodon occidentalis (Daget) (Pisces, Cichlidae) en Guinée et en Sierra Leone (Afrique de l'Ouest) a révélé la présence de sept espèces de Monogènes. Deux ont déjàè été décrites: Cichlidogyrus halli (Price & Kirk, 1967) et Scutogyrus ecoutini Pariselle & Euzet, 1995. Cinq, appartenant toutes au genre Cichlidogyrus Paperna, 1960, sont considérées comme nouvelles, C. bouvii n. sp., C. fontanai n. sp., C. guirali n. sp., C. paganoi n. sp. et C. sanjeani n. sp.  相似文献   

16.
17.
The species Atopochara restricta n. sp. which represents an evolutive stage in the lineage established by L. Grambast (1974) is described here, as well as another one: A. brevicellis n. sp.; they are both of presumed Albian age.  相似文献   

18.
Twelve new species of Chauhanellus Bychowsky & Nagibina, 1969 have been found on six species of ariid from Peninsular Malaysia: Chauhanellus trifidus n. sp., C. digitalis n. sp., C. malayanus n. sp., C. forcipis n. sp. and C. intermedius n. sp. from Arius sagor; C. aspinous n. sp. from Arius venosus; C. caelatus n. sp. from Arius caelatus; C. auriculatum n. sp., C. poculus n. sp. and C. pulutanus n. sp. from Arius maculatus; C. duriensis n. sp. from Arius thalassinus; and C. osteogeneiosi n. sp. from Osteogeneiosus militaris. Some of these Chauhanellus species possess characteristics that are not commonly observed in the genus. C. aspinous n. sp., C. intermedius n. sp. and C. digitalis n. sp. exhibit features found in both Chauhanellus and Hamatopeduncularia: these include absence of spines on the mainpart of the dorsal anchors in C. aspinous n. sp. and C. intermedius n. sp. and presence of haptoral digitation in C. digitalis n. sp. Other features are the five transverse rows of peduncular spines in C. duriensis n. sp., ear-like projections on the anchors in C. auriculatum n. sp., and thin sclerotised plates that partly envelope the ventral anchors in C. forcipis n. sp. Mid-dorsal appendices occur on the dorsal bars of seven of the present species.  相似文献   

19.
Monogeneans from three species of Cephalopholis, namely C. argus, C. sonnerati and C. boenak, are described from fish caught off New Caledonia, South Pacific, with comparisons with material from off Queensland, Australia. Pseudorhabdosynochus argus n. sp. from C. argus is present off New Caledonia and Australia; it is characterised by its male quadriloculate organ with very elongate cone, and its sclerotised vagina with anterior trumpet, coiled primary canal and distal part with two chambers and an accessory part. C. boenak has no monogeneans off New Caledonia, but off Australia it harbours Pseudorhabdosynochus sp., a new species which is morphologically related to P. argus. P. minutus n. sp. from C. sonnerati is characterised by its minute body and a sclerotised vagina with two spherical chambers. Diplectanum nanus n. sp. from C. sonnerati is characterised by its very small funnel-shaped male copulatory organ and minute body. A new species, Haliotrema sp. from C. sonnerati is characterised by a very elongate tubular penis; it is distinct from H. cromileptis Young, 1968 (redescribed herein from specimens collected from Cromileptes altivelis off New Caledonia). The species described here include the first members of Pseudorhabdosynochus and the first diplectanids described from species of Cephalopholis. There is no evidence for a clade of Pseudorhabdosynochus species specific to members of Cephalopholis, since the species described here share similarities with other species from Epinephelus. However, it is suggested that the gill structure of Cephalopholis spp. imposes selection toward small body sizes for monogeneans.  相似文献   

20.
Three Jurassic fossil-wood taxa from France have been investigated, Taxodioxylon lemoignei n.sp. from the Oxfordian, Prototaxodioxylon romanensis Philippe from the Pliensbachian, and P. sp. from the Hettangian. Wood of this type, prior to the Late Cretaceous, is reviewed. The Oxfordian wood shows a structure characteristic of a Taxodiaceae, previously unknown before the Late Cretaceous. It is well differentiated from contemporaneous woods of Cupressaceae. The systematic position of the Liassic forms, with mixed type of pitting, remains more arguable. These taxodiaceous woods, along with known reproductive structures, reinforce the idea that this family was well separated from Cupressaceae already in the Middle Jurassic. *** Fossil wood, Jurassic, France, Taxodiaceae.  相似文献   

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