A new species of Haploops (Amphipoda, Ampeliscidae) from the Bay of Fundy

1982 ◽  
Vol 60 (5) ◽  
pp. 962-967 ◽  
Author(s):  
D. J. Wildish ◽  
J. J. Dickinson

Haploops fundiensis n. sp. is described and figured in immature and mature life-history stages, inclusive of the pelagic male, from samples taken at 80 m in the Bay of Fundy. Taxonomic affinities and distinguishing characteristics of H. fundiensis n. sp. are discussed and a key is provided for distinguishing the presently known species of Haploops from the northwestern Atlantic and Arctic regions.

2020 ◽  
Vol 96 (1) ◽  
pp. 181-192
Author(s):  
Lin Gong ◽  
Xinzheng Li

A new species of the deep-sea sponge Dictyaulus is described from materials collected by the research vessel Ke Xue during its three cruises between 2014 and 2017 to survey seamount biodiversity. The newly described species was one of the only two sponge species found living on all three seamounts investigated. It may be a common species living on seamounts in the tropical western Pacific. All seven known species of Dictyaulus Schulze, 1896 contain floricomes, but each species has special spicules. The new species is easily distinguishable by the presence of discasters, which have previously been reported only in Dictyaulus starmeri Tabachnick and Lévi, 2004, but the latter species possesses sigmatocomes, which are not present in the new species. The five specimens collected display large variation in size, with total lengths from 55 to 610 mm. The specimens differ in the abundance of microsclere types which we consider to be caused not only by differences of their life history stages but also to a greater extent by differences in their living environments.


1984 ◽  
Vol 62 (4) ◽  
pp. 778-794 ◽  
Author(s):  
Christopher S. Lobban

From a study of living materials and specimens in several regional herbaria, a list has been drawn up of all the common and several of the rarer tube-dwelling diatoms of eastern Canada. Descriptions, illustrations of living material and acid-cleaned valves, and a key to the species are provided. Most specimens were from the Atlantic Provinces and the St. Lawrence estuary, but a few were from the Northwest Territories. By far the most common species is Berkeleya rutilans. Other species occurring commonly in the Quoddy Region of the Bay of Fundy, and sporadically in space and time elsewhere, arc Navicula delognei (two forms), Nav. pseudocomoides, Nav. smithii, Haslea crucigera, and a new species, Nav.rusticensis. Navicula ramosissima and Nav. mollis in eastern Canada are usually found as scattered cohabitants in tubes of other species. Nitzschia tubicola and Nz. fontifuga also occur sporadically as cohabitants.


1952 ◽  
Vol s3-93 (24) ◽  
pp. 427-434
Author(s):  
MONICA TAYLOR

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.


1989 ◽  
Vol 79 (3) ◽  
pp. 411-420 ◽  
Author(s):  
K. Sattler ◽  
A. B. Stride

AbstractHypatima mangiferae Sattler sp. n. is described from Kenya, where its larva is injurious to commercial mango trees. A description of its life-history, based on extensive field observations and laboratory studies, is also provided. The moth, its male and female genitalia and the damage caused by the larva are illustrated.


2000 ◽  
Vol 21 (1) ◽  
pp. 39-55 ◽  
Author(s):  
Axel Kwet

AbstractA new species of Pseudis is described from São Francisco de Paula, Rio Grande do Sul, Brazil. It is known from the southern parts of the Serra Geral where it occurs in grassland, inhabiting permanent ponds and still-water zones of slow flowing creeks. It is characterized by a paired vocal sac and a bulbous thumb, considerably widened at the base. It is distinguished from P. minutus by its different call, body coloration, rounded snout, and a more robust body with shorter hindlimbs. Advertisement call, tadpole, and life history are described. The taxonomy of the family Pseudidae in Rio Grande do Sul is discussed, supporting the synonymy of Lysapsus mantidactylus and P. meridionalis with P. minutus.


1961 ◽  
Vol 35 (S1) ◽  
pp. 53-62 ◽  
Author(s):  
J. A. Dinnik ◽  
N. N. Dinnik

A half a century ago, R. T. Leiper described a new species belonging to the genus Fasciola from specimens which he collected from hippopotami at the Murchison Falls, on the Victoria Nile in Uganda, in the summer of 1907. This species, Fasciola nyanzae, was found in the bile ducts of the liver, and in most instances the specimens were somewhat macerated owing to the length of time that had elapsed before the animal could be recovered from the water. Nevertheless, the characteristic shape of these liver flukes and the restriction of the branched testes to the anterior third of the body made it possible to recognise them as being different from all other species of the genus known at that time.


Zootaxa ◽  
2018 ◽  
Vol 4407 (4) ◽  
pp. 591
Author(s):  
ELIANE SOLAR GOMES ◽  
ROSALY ALE-ROCHA ◽  
RUTH LEILA FERREIRA KEPPLER

A new species of Stenomicra is described for the Neotropical Region, from phytotelmata of Araceae at an urban forest fragment in the city of Manaus, state of Amazonas, Brazil. Morphological descriptions of the immatures and the adults (male and female) are provided, together with biological information on the life cycle of the species and its “host” plant. 


1901 ◽  
Vol 33 (2) ◽  
pp. 52-52 ◽  
Author(s):  
August Busck

During a visit to Professor Fernald, in Amherst, Mass., last spring, he showed me a Nepticula, bred from Apple, which he had described in manuscript as a new species, but which he afterwards had suspected to be Micropteryx pomivorella, Packard.From reading the description and life-history of packard's species, I felt sure that it was a Nepticula and presumably the same as Professor Fernald's species, and a week after, while studying the collection in the Agassiz Museum, Cambridge, I obtained definite proof that we were right.


Parasitology ◽  
1947 ◽  
Vol 38 (1-2) ◽  
pp. 17-26 ◽  
Author(s):  
Frank A. Turk

All the Mesostigmatic mites which have been found as ecto- or endoparasites of snakes are listed and it is suggested that the latter are probably derived from the former. The homologies of the dorsal shields are established and a progressive fusion is shown to have taken place. On this evidence a new genus is erected for O. bedfordi (Radford) to include most probably the lung mites of African snakes. The life history and general biology are discussed. It is shown that there is no experimental evidence that these acari are vectors of disease or that they induce any change in the tissues of the host. Evidence is brought forward to show that the parasites of the more nearly related snake hosts are themselves more nearly related: some consequences of this are discussed. A key to the females of all the known lung mites of snakes is given together with the diagnosis of the new genus Hammertonia and of a new species, Ophiopneumicola americana. The view that the genus Ophiopneumicola is not a natural group is expressed. O. hammertoni Radford is redescribed and some points of significance discussed. The species incertae sedis of Keegan (1943) are discussed.


1963 ◽  
Vol 95 (4) ◽  
pp. 414-417 ◽  
Author(s):  
W. H. Kearby ◽  
D. M. Benjamin

AbstractInvestigations into the causal organism of late fall browning in Wisconsin disclosed an undescribed species of gall midge. The taxonomic description and a summary statement of the life history are presented.


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