Results 1 to 10 of about 11,201 (250)
Problems in polychaete systematics
Hydrobiologia, 2003 Some of the intriguing issues in current polychaete systematics are reviewed. (1) The root of the ‘polychaete’ tree. Currently there are two major hypotheses concerning the root position among polychaetes. One is based on rooting cladograms with outgroups such as Mollusca and result in simple-bodied taxa such as Opheliidae and Questidae forming a basal
Rouse, Greg W., Pleijel, Fredrik
openaire +2 more sources
Some of the next articles are maybe not open access.
A census of abyssal polychaetes
Deep Sea Research Part II: Topical Studies in Oceanography, 2009Abstract As part of the Census of Marine Life's programme of summarising existing knowledge of the oceans, records of all polychaete species collected below 2000 m have been collated from the literature. A total of 3633 records was assembled into a database, revealing that 768 species, 358 of which were new to science, have been reported from the ...
Paterson, Gordon L.J. +6 more
openaire +2 more sources
Proceedings / Indian Academy of Sciences, 1949
1. A detailed study of the eyes of a few common polychaetes of Madras with different habits has been carried out giving a brief comparison of their structure with that of allied forms from European waters. 2. The eye in Eunicidae is usually composed of a retinal cup and a central refractive body which consists of a localised thickening ...
openaire +1 more source
1. A detailed study of the eyes of a few common polychaetes of Madras with different habits has been carried out giving a brief comparison of their structure with that of allied forms from European waters. 2. The eye in Eunicidae is usually composed of a retinal cup and a central refractive body which consists of a localised thickening ...
openaire +1 more source
Mechanisms of locomotion in the polychaete, Harmothoë
Comparative Biochemistry and Physiology, 19701. 1. During forward walking parapodial stepping and s waves occur; the two can be separated by sectioning appropriate segmental nerves. 2. 2. Thirty cycles of stepping begin at the pygidium/min and move rostrally over 3–10 segments/sec. 3. 3.
openaire +2 more sources
Methods of Culturing Polychaetes
1975The purpose of this paper is neither to review the literature on polychaete reproduction nor to describe the diverse reproductive habits and developmental stages that occur among polychaetes. Rather, this is an attempt to summarize the “do’s, don’t’s, and probably’s” pertaining to the successful culture of this fascinating group of marine invertebrates.
David Dean, Michael Mazurkiewicz
openaire +1 more source
Longevity in a Polychaete and a Coelenterate
Nature, 1963IN December 1949 I collected a small group of the serpulid Mercierella enigmatica Fauvel, which lives in brackish-water as well as in the sea, growing on reeds in Lake Mariout, Alexandria, Egypt. I brought the dozen or so of the tube-worms back to London and kept them alive for a number of years in a small aquarium containing sea-water diluted half-and-
openaire +1 more source
Amphipacific Distribution of Polychaetes
Journal of the Fisheries Research Board of Canada, 1971Some 25 polychaete species common to Asiatic and American coasts are recorded in south-boreal and subtropical waters of the Pacific; they are absent in both northern cold regions (Bering and Okhotsk seas) and in tropical zones. Examples are also given of analogous, closely related twin species, and subspecies.
openaire +1 more source
THE NON-POLYCHAETOUS ANNELIDS OF NORFOLK, ENGLAND, WITH ADDITIONAL NOTES ON POLYCHAETES
1972An annotated list is given of the Norfolk marine and brackish-water archian- nelids, oligochaetes, and hirudineans, based on more or less casual records ; none of these species are unusual in any way in the present context, and the only onepreviously found on the Norfolk coast was the skate-leech Pontobdella muricata.
openaire +1 more source