Bougainvilliidae Lütken 1850

Parawrightia robusta colony growing over sponge and sea-weedFrom Warren 1907

Bimeria vestita Wright, 1859 A: Ter hoogte van Nieuwpoort A1: Vergroting: x7 A2: Vergroting: x23 B1: Naar G.J. Allman, 1871 B2: Tentakel vergroot (naar T. Hincks, 1868)

Bougainvillia multitentaculata, floating docks of Friday Harbor Marine laboratories, size 7 mm

Grove, O, Galicia, Spain

Identifier: textbookofcompar01lang (find matches)Title: Text-book of comparative anatomyYear: 1898 (1890s)Authors: Lang, Arnold, 1855-1914 Bernard, Henry Meyners Bernard, Matilda Haeckel, Ernst Heinrich Philipp August, 1834-1919Subjects: Anatomy, ComparativePublisher: London, New York, Macmillan and Co.Contributing Library: MBLWHOI LibraryDigitizing Sponsor: MBLWHOI LibraryView Book Page: Book ViewerAbout This Book: Catalog EntryView All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book.Text Appearing Before Image:rois, Keller, Heider, Marshall, Lenden- feld, Gotte, etc. CLASS III.—Cnidaria. Systematic Review. Sub-Class 1. Hydrozoa. Prototype: Hydropolyp or Hydruht. In all Hydrozoa an ectodermal oeso-phagus is wanting ; the mouth leads direct into the endodermal gastric cavity. Gastralfilaments are wanting. The sexual products mostly arise from the ectoderm. Thesexes are generally separate. II CNID ARIA 6 Order 1. Hydridae Fresh-water polyps . Single individuals or small stocks without envelopes consisting of a few similarindividuals. Reproduction asexual by gemination, and sexual. Hydra develop directfrom the egg. Hermaphrodite. Hydra, in fresh water. Order 2. Hydromedusse. Hydroid colonies, which are at least dimorphic, since, besides the sterile nutritivepolyps, there arise by gemmation sexual persons, which either detach themselves asCmspct?ufc. M.dasce and swim about freely, or remain united with the colony asmedusoid gonophores. In one series of Hydromedusce the attached Hydroid form isText Appearing After Image:FIG. ti-1—Bougainvillea ramosa (after Allman), with budding Meduss. li, Nutritive polyps;mk, Medusa buds ; m, detached young Medusa (Maryclis ramosa). suppressed, as the Cmspedotc Medusa develops direct from the fertilised egg intoanother Medusa. The systematic relationship of single forms is naturally determinedboth by the Hydroid and by the Medusa forms. As the whole life-history anddevelopment of only a minority of the many species is available, and in many speciesonly the Hydroid form is known, in others only the Medusa form, a natural systemof the Hydromedusce is still a desideratum. Hydroid form. Medusa form. Sub-Order 1. Hydrocorallia, Hydroid stocks, with calcined peri- Vanting. derm skeleton. The sexual products areproduced in gonophores. Stylasti r, 68 COMPARATIVE ANATOMY CHAP. Hydroid form. Sub-Order 2.Tubularia. Small hydroid colonies, naked orcovered with a chitinous envelope (peri-derm). The chitinous envelope neverwidens into a cup (theca) round the polyphead. In manNote About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

Bougainvillia britannica

PRESERVED_SPECIMEN; ; ; microslide; IZ number 95700; lot count 1; Microslide 01, glycerin, whole mount; 1879-01-01T00:00:00Z

Summary[edit] Description: Nemopsis bachei hydromedusa, 6mm long. Mouth of Rhode River, Anne Arundel County, MD - 12/17/14. Photo by Robert Aguilar, Smithsonian Environmental Research Center. Date: 6 March 2006, 06:49. Source: Nemopsis_bachei_hydromedusa_(I0961). Author: Smithsonian Environmental Research Center.

Summary[edit] Description: English: Location taken not recorded. Date: 30 November 2021. Source: Own work. Author: Paul Harrison.

Summary[edit] Description: Español: Garveia annulata, bahía de Carmel, EE.UU. Date: 18 April 2011, 10:52:46. Source: http://www.sanctuarysimon.org/photos/photo_info.php?photoID=4705&search=inverts&s=300&page=16. Author: Steve Lonhart / NOAA MBNMS.

Identifier: introductiontozo00dave Title: Introduction to zoology; a guide to the study of animals, for the use of secondary schools; Year: 1900 (1900s) Authors: Davenport, Charles Benedict, 1866-1944 Davenport, Gertrude Anna Crotty, 1866- Subjects: Zoology Publisher: New York, Macmillan company London, Macmillian and co., ltd. Contributing Library: MBLWHOI Library Digitizing Sponsor: MBLWHOI Library View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: THE HYDRA AND J7N ALLIES 211 swim away. The jelly-fishes then give rise to the sexualproducts and discharge them into the water (Fig. 198).In other cases the jelly-fish is formed but never separated Text Appearing After Image: FIG. 198. — Bougainvillea ramosa. A, entire colony, natural size; B, portionof the same magnified; C, immature medusa; dr. c, circular canal; cu,cuticle or perisarc; ent. ccw, enteric cavity; hyd, polyp or hydranth; hyp,hypostome or manubrium ; med, medusa; mnb, manubrium ; rad. c, radialcanal; t, tentacle; v, velum. From Parkers Biology, after Allman.This is closely allied to the New England B. super cllians. 212 ZOOLOGY from the parent, and the eggs develop in the bud. Instill other cases a mere bud, called gonophore, is formed,which becomes full of sexual products without ever ac-quiring resemblance to a jelly-fish. The jelly-fish is theprimitive type which has undergone a reduction in somecases to a gonophore. It is an interesting fact that incertain species sometimes jelly-fishes and sometimes gono-phores will be produced. In the Campanularidae the Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

Summary[edit] Description: Seaside studies in natural history. By Elizabeth C. Agassiz and Alexander Agassiz. Marine animals of Massachusetts Bay. Radiates. Date:. Source: https://www.biodiversitylibrary.org/pageimage/11583258. Author: Agassiz, Alexander; Agassiz, Elizabeth Cabot Cary. CollectionNotable Women in Natural History. Page ID11583258. Item ID42780 (Find related Wikimedia Commons images). Title ID11143 (Find related Wikimedia Commons images). Page numbersPage 70. BHL Page URLhttps://www.biodiversitylibrary.org/page/11583258. DOI10.5962/bhl.title.11143. Page typeText Illustration. CreditNOT_IN_COPYRIGHT : This file comes from the Biodiversity Heritage Library. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing. Deutsch | English | español | français | italiano | 日本語 | македонски | Nederlands | polski | +/−. Licensing[edit] This image is in the public domain because it is a mere mechanical scan or photocopy of a public domain original, or – from the available evidence – is so similar to such a scan or photocopy that no copyright protection can be expected to arise. The original itself is in the public domain for the following reason: Public domainPublic domainfalsefalse. : This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1926. This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.. https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse This tag is designed for use where there may be a need to assert that any enhancements (eg brightness, contrast, colour-matching, sharpening) are in themselves insufficiently creative to generate a new copyright. It can be used where it is unknown whether any enhancements have been made, as well as when the enhancements are clear but insufficient. For known raw unenhanced scans you can use an appropriate {{PD-old}} tag instead. For usage, see Commons:When to use the PD-scan tag. Note: This tag applies to scans and photocopies only. For photographs of public domain originals taken from afar, {{PD-Art}} may be applicable. See Commons:When to use the PD-Art tag.

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Dicoryne conferta (Alder, 1856) A: Op een schelp van Buccinum undatum Linné, 1758, vergroting: x1 B: Kolonie vergroot C: Vrije sporogonia (voor ongeslachtelijke voortplanting), zicht vanuit twee verschillende hoeken (A, C: Naar G.J. Allman, 1871) (B: Naar T. Hincks, 1868)

Summary[edit] Description: English: Bougainvillia muscus forma fruticosa in Grant Museum of Zoology, London, England. Magyar: Bougainvillia muscus forma fruticosa a londoni Grant Museum of Zoology-ban. Date: 20 November 2011. Source: kindly granted by the author. Author: Emőke Dénes. Permission(Reusing this file): This file was created by Emőke Dénes and uploaded by DenesFeri. : This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license. :. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original. https://creativecommons.org/licenses/by-sa/4.0 CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue. : This work is free and may be used by anyone for any purpose. If you wish to use this content, you do not need to request permission as long as you follow any licensing requirements mentioned on this page. Wikimedia Foundation has received an e-mail confirming that the copyright holder has approved publication under the terms mentioned on this page. This correspondence has been reviewed by an OTRS member and stored in our permission archive. The correspondence is available to trusted volunteers as ticket #2017083110036563. If you have questions about the archived correspondence, please use the OTRS noticeboard. Ticket link: https://ticket.wikimedia.org/otrs/index.pl?Action=AgentTicketZoom&TicketNumber=2017083110036563..

Summary[edit] Description: English: Location taken not recorded. Date: 5 February 2019. Source: Own work. Author: Paul Harrison.

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Identifier: journalofmicrosc15post (find matches)Title: The Journal of microscopy and natural scienceYear: 1896 (1890s)Authors: Postal Microscopical Society Wesley Naturalists' Society Allen, AlfredSubjects: Microscopy MicroscopesPublisher: (London : W. P. CollinsContributing Library: MBLWHOI LibraryDigitizing Sponsor: MBLWHOI LibraryView Book Page: Book ViewerAbout This Book: Catalog EntryView All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book.Text Appearing Before Image:20). The individuals of such stocks are,however, generally not similar, but, as a consequence of more orless division of labour, Dimorphism or Polymorphism takes place.We distinguish (i) sterile ?iutritive persons, which remain on thelevel of the Hydroid, and undertake the feeding of the stock, thegastric cavities of the individuals of the stock being in communi- COMPARATIVE ANATOMY. 279 cation with one another ; (2) Sexual persons, which undertake theduty of ripening the sexual products and also of planting themout and dispersing them, so that the young brood of Hydroidsproceeding from the fertilised egg may attach themselves in newplaces and form new stocks. lhe sexual persons which are des-tined for a free-swimming life, and which are buds of the Hydroidstock, attain a structure corresponding with this manner of life ;they become young Craspedote Mcdusce, which detach themselvesfrom the stock, swim away, and—often after longer or shortermetamorphosis—ripen the sexual products.Text Appearing After Image:Fii^. 20.—Bougainville ramosa (after Allman), with budding Medusse.h. Nutritive polyps; vi.k.. Medusa buds; w., Detached young Medusa (Margalis ramosa). Turning now towards the end of Vol. I., we come to ClassAfitennata, sub-class Hexapoda or Insecta, which is thus described : The body of the Hexapoda falls typically into three parts, quitedistinct from each other : head, thorax, and hind body (abdomen).The unsegmented head probably originally consisted of four seg- 280 COMPARATIVE ANATOMY. ments. The thorax is composed of three segments : prothorax,mesothorax, and metathorax, answering to the three anterior trunksegments of the Myriapoda. The typical number of segments inthe hind-body is ten or eleven. The thorax and the abdomentogether form the trunk, which may be compared with the trunkof the Symphyla. Among the Apterygota the Thysaiiura possessten abdominal segments, and the CoUembola a varying number, butalways less than ten. In the Pterygota the number of abdominalsegments inNote About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.