These bring the known number of pa-laeonemertean species from Hong Kong to 11; a key to these species, based primarily upon features distinguishable in the living animals, is provided.doi:10.1111/j.1096-3642.1999.tb00590.xRAY GIBSON FLS
The inverse eyes of three nemertean species are composed of numerous visual cells within a cup-shaped pigmented screen. The bipolar visual cells are long and slender with an apical photoreceptoral process terminating in a microvillous rhabdomere. In two species some of the microvilli are flattened...
In both species, there is significant strand asymmetry in the distribution of nucleotides, with the coding strand being richer in T than A and in G than C. The AT-rich non-coding regions of the two genomes have some repeat sequences and stem-loop structures, both of which may be ...
Define nemertean. nemertean synonyms, nemertean pronunciation, nemertean translation, English dictionary definition of nemertean. also nem·er·tine n. Any of various unsegmented chiefly carnivorous worms of the phylum Nemertea that have a long, often br
One species of nemertean has been found with an unidentified coccidian parasite. 'Sporozoan‐like' parasites, however, are known from three other species of nemerteans, two of which are pelagic polystiliferans. Two endosymbiotic and one ectosymbiotic species of ciliates have been identified from ...
Species trees were constructed with RAxML (v8.2.4)74 using the maximum-likelihood method with the LG, LG4M and LG4X models. Bayesian analyses were performed with PhyloBayes (v3.3 f)75 using the CAT + GTR model with the first 1,000 trees as a burn-in. For sensitivity analyses,...
纽虫(一种海虫); 英英释义 nemertean[ ni'mə:tiən ] n.soft unsegmented marine worms that have a threadlike proboscis and the ability to stretch and contract 同义词:ribbon wormnemertineproboscis worm 学习怎么用 权威例句 Checklist of Nemertean Genera and Species Published between 1995 and 2007...
This is the fourth species of segmented nemerteans and the first finding of Annulonemertes in the Arctic. This is a preview of subscription content, log in via an institution to check access. Similar content being viewed by others Nemerteans from the Far Eastern Seas of Russia Article 01 ...
With his experience of the Antarctic fauna he is able to show that Lineus corrugatus M'Intosh is an almost, if not wholly, purely Antarctic or sub-Antarctic species and that it does not, as was supposed, occur in South Africa. More than half the total number of specimens of Nemerteans...
Abstract Ecdysteroids were detected in the phylum Nemertea and their physiological role was studied. Radioimmunoassay (RIA) measurements showed ecdysteroid concentrations ranging from 1–47 pg/mg wet weight in several nemertean species from the orders Palaeonemertea, Heteronemertea, and Hoplonemertea. Hig...