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Echinodermata: more books (100)

Treatise on Invertebrate Paleontology, Part S: Echinodermata
Status of Invertebrate Paleontology, 1953, IV. Echinodermata: Eleutherozoa by J. W. Durham, 1954-01-01
Marine flora and fauna of the northeastern United States. Echinodermata: Crinoidea (SuDoc C 55.13:NMFS 91) by Charles Garrett Messing, 1990
Swimming Sea Cucumbers (Echinodermata: Holothuroidea): A Survey, with Analysis of Swimming Behavior in Four Bathyal Species by J. E. and Pawson, D. L. Miller, 1990-01-01
Invertebrates: Protozoa to Echinodermata by Ashok Verma, 2005-01
End-Permian extinction and subsequent recovery of the Ophiuroidea (Echinodermata) [An article from: Palaeogeography, Palaeoclimatology, Palaeoecology] by Z.Q. Chen, K.J. McNamara, 2006-06-27
MONOGRAPH ON THE BRITISH FOSSIL ECHINODERMATA OF THE OOLITIC FORMATIONS: VOL. II. THE ASTEROIDEA AND OPHIUROIDEA. by Thomas. Wright, 1880-01-01
MONOGRAPH OF THE BRITISH FOSSIL ECHINODERMATA FROM THE CRETACEOUS FORMATIONS: VOLUME FIRST, PART SECOND ON THE CIDARIDAE AND DIADEMADAE.
Echinodermata Ophiuroidea by Khler, 2010-01-09
Echinodermata of the Ottawa Formation of the Ottawa-St. Lawrence Lowland: Geological Survey Bulletin No. 4 by Alice E. Wilson, 1946
The Croonian Lecture. Observations on the Locomotor System of Echinodermata. Contained in: Proceedings of The Royal Society, Vol. XXXII, No. 212. This paper: pp. 1-11. by George John (1848-1894) & James C. EWART. ROMANES, 1881-01-01
Philippine Brittlestars (Echinodermata: Ophiuroidea) Described by R. Koehler (1922): A Corrected and Annotated List of Type Specimens by C. Ahearn, 1992-01-01
A new distribution record and notes on the biology of the brittle star Ophiactis simplex (Echinodermata: Ophiuroidea) in Texas.: An article from: The Texas Journal of Science by Ana Beardsley Christensen, 2004-05-01
Marine flora and fauna of the northeastern United States, echinodermata: holothuroidea (NOAA technical report NMFS circular) by David L Pawson, 1977

lists with details

Sea Urchins Revisited
Photographic study by Jean-Marie Cavanihac of the sea urchin with some microscopic features of interest to the amateur naturalist.
http://www.microscopy-uk.org.uk/mag/artmay02/urchin2.html

Extractions: - Revisited - by Jean-Marie Cavanihac, France Some months ago I wrote an article about sea urchins. So why am I writing again on this topic? Perhaps it's because I always have an urchin spine in my left forefinger! But the real reason is different: at that time I didn't use a color still camera and the images were 'hand colored'. Some features of urchins are so beautiful in their true colors, that I have prepared a second article to show some of these features to Micscape readers; particularly the pedicellariae and their tiny internal 'bones', such as these below: But to recap a little: some parts of an urchin are made of calcium carbonate, (calcite, with magnesium carbonate an important additional component), and these materials are able to rotate plane polarized light. Some additional equipment is needed to add polarized lighting to your microscope. Some methods, including using clip-on Polaroid sunglasses, have been described in past articles in Micscape, but I have used a different approach. Liquid crystal displays (LCD's) like those used in handheld calculators, car temperature indicators, low priced watches etc. include a polarizing filter to increase the display contrast. Some filters for computer screens are also polarizers. On an LCD this filter is a film glued onto the glass display, in other cases it's just a removable plastic grey plate. It's this last type I have used:
Calcareous Flowers: Tests And Cross-sections Of Sea Urchin Spines.
Photographic study by Richard Howey with some fine photographs of the intricate beauty of these structures.
http://www.microscopy-uk.org.uk/mag/artaug05/rh-seaurchin.html

Extractions: Calcareous Flowers: Tests and Cross-Sections of Sea Urchin Spines by Richard L. Howey, Wyoming, USA For over 50 years, I have been fascinated with echinoderms and from time to time I would come across drawings or photographs in a zoology book of a cross-section of a sea urchin spine and marvel at the complexity and symmetry. However, only in the last few years, by means of the Internet, have I been able to locate a few slides of such sections at prices that I could afford. All of the examples I have acquired are 19 th Century and I don’t know of any supply house that provides such slides made now. To me this is rather surprising. These sections are lovely objects, have an instructional value, and would certainly appeal to collectors. It is certainly true that these sections are not easily produced as I know from personal experience having had less than satisfactory results from several attempts. However, with modern equipment and techniques, I would think that it should be reasonably straightforward for a professional laboratory in a biological supply house to produce such sections but, as I said, I have never come across any and, who knows, they might end up selling for more than the 19 th Century slides.
Strongylocentrotus
Exercise from Invertebrate Anatomy OnLine covering the systematics, external and internal anatomy of the green sea urchin.
http://webs.lander.edu/rsfox/invertebrates/strongylocentrotus.html

Extractions: TEXT ONLY PRINT Home Invertebrate Anatomy OnLine ... Invertebrate Anatomy OnLine Invertebrate Anatomy OnLine Strongylocentrotus drobachiensis Green Sea Urchin Richard Fox Lander University Preface This is one of many exercises available from Invertebrate Anatomy OnLine an Internet laboratory manual for courses in Invertebrate Zoology. Additional exercises, a glossary, and chapters on supplies and laboratory techniques are also available at this site. Terminology and phylogeny used in these exercises correspond to usage in the Invertebrate Zoology textbook by Ruppert, Fox, and Barnes (2004). Hyphenated figure callouts refer to figures in the textbook. Callouts that are not hyphenated refer to figures embedded in the exercise. The glossary includes terms from this textbook as well as the laboratory exercises. Systematics Echinodermata P , Eleutherozoa, Cryptosyringida, Echinozoa, Echinoidea C , Euechinoidea sC , Echinoida O , Strongylocentrotidae F (Fig 9-26, 27-12, 28-62) Echinodermata P Echinoderms are secondarily radially symmetric deuterostomes whose ancestors were bilaterally symmetric. The adult radial symmetry is pentamerous with body parts occurring in fives or multiples thereof.
The Echinoid Directory - Natural History Museum
Biology, phylogeny, and classification of sea urchins.
http://www.nhm.ac.uk/research-curation/projects/echinoid-directory/intro/introdu

Extractions: @import url("/includes/css/research-curation/research-projects/projects/echinoid-directory/echinoid-directory.css"); Skip to page content You are here: Mode of life Composition of the skeleton Soft-tissue anatomy Life history and reproduction ... Evolutionary history Sea urchins are a group of marine invertebrates that today can be found in almost every major marine habitat from the poles to the equator and from the intertidal zone to depths of more than 5,000 metres. There are around 800 extant species and the group has a long and detailed fossil record stretching back about 450 million years ago to the Late Ordovician Period. They belong to the Echinoidea, one of the five classes of the phylum Echinodermata, the others being holothurians, crinoids, starfish and brittlestars. Like all echinoderms, echinoids have a skeleton composed of calcitic plates embedded in their skin (their skeleton is internal, like ours). This skeleton has a very particular structure, termed stereom. In almost all groups of echinoid the plates are firmly bound together to form a solid skeleton, called the test. Plates in the test are arranged into columns radiating from an aboral apical zone to the mouth. In regular echinoids the test is globular and perfectly pentaradiate, but in irregular echinoids there is a secondary bilateral symmetry superimposed upon the primary pentaradiate pattern.
FAO Fisheries & Aquaculture - Species Fact Sheets
Factsheet from the FAO on the Chilean Sea Urchin which is eaten in Chile and Peru, its distinguishing features, distribution, habitat and biology.
http://www.fao.org/fishery/species/3621
Urchin Sex! - Divernet
Short article from Diver Magazine on how research into these marine creatures is playing an important role in human reproductive biology.
http://www.divernet.com/Marine-Life/159801/urchin_sex.html

Extractions: As humans, we should be saying a big thankyou to sea urchins, rather than bemoaning their existence as we attempt to tweeze out the spines in our hand or foot (delete as appropriate), because they play an important scientific role in human reproductive biology. If not for the sea urchin, we might still think that a sperm is actually a tiny human being, and the egg merely there to give it a comfy home!

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