A new species of Caracolus (Pulmonata: Camaenidae) from the Oligocene of Nebraska and the biotic history of the American camaenid land snails

1979 ◽  
Vol 67 (3) ◽  
pp. 269-284 ◽  
Author(s):  
M. J. BISHOP
Keyword(s):  
New Species ◽  
Land Snails ◽  
History Of ◽  
A New Species

Amoeba hugonis n.sp.: Life-history

1952 ◽  
Vol s3-93 (24) ◽  
pp. 427-434
Author(s):  
MONICA TAYLOR
Keyword(s):  
Life History ◽  
New Species ◽  
Nuclear Membrane ◽  
Euglena Gracilis ◽  
Adult Specimen ◽  
History Of ◽  
A New Species ◽  
Average Adult

Material collected in Loch Tannoch was allowed to macerate in a chemical nutrient. A rich crop of Euglena gracilis as well as other infusoria resulted. Eight months later, when the Euglena had encysted, many amoebae were found at the bottom of the receptacle. They constitute a new species, here named Amoeba hugonis. An average adult specimen, when extended, measures about 104x52·2µ. The nucleus consists of a central karyosome lying in the nuclear sap, separated from the cytoplasm by a wellmarked nuclear membrane. Between the latter and the karyosome is situated an achromatic ‘collar’ with chromatin particles embedded in it. Fission is described, but a study of mitosis has been deferred. The life-history of this small amoeba is very similar to that of the large A. proteus, &c. The cycle occupies two months. Chromidia begin to appear in the cytoplasm of the early adult. They give rise to spores, out of which amoebulae hatch.

1. On the Anatomy of a new Species of Polyodon, the Polyodon Gladius of Martens, taken from the river Yang-tsze-Kiang, 450 miles above Woosung. Part I., being its External Characters and Structure

1875 ◽  
Vol 8 ◽  
pp. 50-51 ◽  
Author(s):  
P. D. Handyside
Keyword(s):  
New Species ◽  
History Of ◽  
Image Position ◽  
A New Species

The position of this new species of Ganoid, under our commonly accepted classification, the author gave as follows:—After referring to the Polyodon folium of Laépède (the P. reticulata of Shaw, the Planirostra spatula of Owen), the paddle-fish or spoon-bill sturgeon of the Ohio and Mississippi and their tributaries, as a well-known species of the genus in question, Dr Handyside went on to state that the new species now to be described was first observed on a Chinese fishmonger's stall at Woosung, 12 miles from Shanghai, and had since been found in the Yang-tsze-Kiang, and, as was alleged, in the northern Japanese sea. He then sketched the history of the Polyodontidoæ family, and narrated the researches of Lacépède, Von Martens, Blakiston, Kaup, and Duméril.

A New Strigeid Trematode from an Australian Marsupial

1957 ◽  
Vol 31 (4) ◽  
pp. 257-264 ◽  
Author(s):  
Dorothea F. Sandars
Keyword(s):  
New Species ◽  
History Of ◽  
Australian Marsupial ◽  
A New Species ◽  
Sarcophilus Harrisii

A new species Fibricola sarcophila, is described from Sarcophilus harrisii from Tasmania. The history of previous records of strigeid from marsupial hosts is outlined and their possible relationships discussed.

scholarly journals A new species of pygmy Paroctopus (Cephalopoda: Octopodidae): the smallest southwestern Atlantic octopod, found in sea debris

2021 ◽  
Author(s):  
Tatiana S. Leite ◽  
Erica A.G. Vidal ◽  
Françoise Dantas Lima ◽  
Sergio M.Q. Lima ◽  
Ricardo M Dias ◽  
...  
Keyword(s):  
New Species ◽  
Western Atlantic ◽  
Bayesian Phylogenetic Analysis ◽  
History Of ◽  
Novel Habitat ◽  
In Situ Observations ◽  
Males And Females ◽  
The Relationship ◽  
A New Species

Abstract The new species, Paroctopus cthulu sp. nov. Leite, Haimovici, Lima and Lima, was recorded from very shallow coastal waters on sandy/muddy and shelter-poor bottoms with natural and human-origin debris. It is a small octopus, adults are less than 35 mm mantle length (ML) and weigh around 15 g. It has short to medium sized arms, enlarged suckers on the arms of both males and females, large posterior salivary glands (25 %ML), a relatively large beak (9 % ML) and medium to large mature eggs (3.5 to > 9 mm). The characteristics of hatchlings of two brooding females, some of their anatomical features, and in-situ observations of their behaviour are a clue to the life history of it and closely related pygmy octopuses. The Bayesian phylogenetic analysis showed that Paroctopus cthulu sp.nov. specimens grouped in a well-supported clade of Paroctopus species, separate from P.joubini and P. cf mercatoris from the Northwestern Atlantic . The description of this new species, living in a novel habitat of human debris in shallow water off Brazil, offered an opportunity not only to evaluate the relationship among the small octopuses of the western Atlantic, Caribbean and eastern Pacific, but also their adaptation to the Anthropocene period.

Cretaceous Phoenicopsis Heer (Leptostrobales): A new species and a geological history of the genus

2020 ◽  
Vol 116 ◽  
pp. 104578
Author(s):  
Natalya Nosova ◽  
Alexei Herman ◽  
Alexander Grabovskiy ◽  
Elena Kostina
Keyword(s):  
New Species ◽  
Geological History ◽  
History Of ◽  
A New Species

scholarly journals A Cryptic New Species of Flycatcher (Tyrannidae: Suiriri) From the Cerrado Region of Central South America

The Auk ◽  
2001 ◽  
Vol 118 (1) ◽  
pp. 56-78 ◽  
Author(s):  
Kevin J. Zimmer ◽  
Andrew Whittaker ◽  
David C. Oren
Keyword(s):  
New Species ◽  
Natural History ◽  
South America ◽  
Color Pattern ◽  
Playback Experiments ◽  
History Of ◽  
Central South ◽  
A New Species

AbstractA new species of tyrant flycatcher (Suiriri islerorum) is described from the cerrado region of Brazil and adjacent eastern Bolivia. The species previously had been confused with Suiriri suiriri affinis, with which it is syntopic at multiple sites. The new species was first identified by voice. Although cryptically similar to S. s. affinis in many respects, the new species is readily identified by all vocalizations, bill size, color pattern of the tail, and shape of the central rectrices. Most distinctive are the male–female duets, which are accompanied by dramatic wing-lifting displays not performed by any congeners. Reciprocal playback experiments of tape-recorded vocalizations demonstrated that the new species and S. s. affinis do not respond to one another's vocalizations. We provide information on the natural history of the new flycatcher, along with spectrograms of its various vocalizations. We also provide vocal analysis of all other named taxa in Suiriri, and discuss the various intrageneric relationships. In particular, S. s. affinis and S. s. bahiae, although distinct morphologically, are vocally and behaviorally similar, and respond to one another's vocalizations in playback experiments.

A new feather mite species of the genus Neumannella Trouessart, 1916 (Analgoidea, Dermoglyphidae) from the Red-winged Tinamou Rhynchotus rufescens (Temminck, 1815) (Aves, Tinamiformes) with remarks to the evolution of host-parasite associations of the genus

2014 ◽  
Vol 59 (2) ◽  
Author(s):  
Jacek Dabert
Keyword(s):  
New Species ◽  
Evolutionary History ◽  
Morphological Characters ◽  
Mite Species ◽  
Feather Mite ◽  
History Of ◽  
Host Parasite ◽  
Reconciliation Method ◽  
A New Species ◽  
Mite Family

AbstractNeumannella skorackii, a new species of the feather mite family Dermoglyphidae (Acari, Astigmata) is described from the Red-winged Tinamou Rhynchotus rufescens (Temminck, 1815) (Aves, Tinamiformes) from Paraguay and a key to all known species of the genus is provided. The phylogenetic relationships (MP analysis of 25 morphological characters) between Neumannella species along with the evolutionary history of host-parasite associations revealed by Jungle reconciliation method are reconstructed. Relatively low cospeciation contribution to the recent host-parasite associations is discovered.

Berteroa physocarpa (Brassicaceae), a new species from NW Turkey based on morphological and molecular data

Phytotaxa ◽  
2017 ◽  
Vol 305 (2) ◽  
pp. 87
Author(s):  
SIRRI YÜZBAŞIOĞLU ◽  
IHSAN A. AL-SHEHBAZ ◽  
ELİF YÜZBAŞIOĞLU ◽  
EDA DALYAN
Keyword(s):  
New Species ◽  
Its Region ◽  
Molecular Data ◽  
Alpine Zone ◽  
Nw Turkey ◽  
Maximum Likelihood Methods ◽  
History Of ◽  
Morphological And Molecular Data ◽  
Relationship Of ◽  
A New Species

Berteroa physocarpa, a new species from the subalpine-alpine zone (1600−2200 m) of northwest Anatolia, is described and illustrated. It shares with the other species of Berteroa 2n=16 and morphologically is readily distinguished from them by having distinctly inflated fruit with glabrous valves. Sequences of nuclear ribosomal transcribed spacer (ITS) region were used to determine the relationship of Berteroa species using maximum likelihood methods. The phylogenetic results confirmed the recently established systematic history of Berteroa and also supported the recognition of this new species.

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