<br><p><b>Identifier</b>: transactionsproc20newz (<a class="external text" href="https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&amp;profile=default&amp;fulltext=Search&amp;search=insource%3A%2Ftransactionsproc20newz%2F">find matches</a>)<br><b>Title</b>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookidtransactionsproc20newz">Transactions and proceedings of the New Zealand Institute</a><br><b>Year</b>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookyear1887">1887</a> (<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookdecade1880">1880s</a>)<br><b>Authors</b>:  <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookauthorNew_Zealand_Institute">New Zealand Institute</a><br><b>Subjects</b>:  <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/booksubjectScience">Science</a><br><b>Publisher</b>:  <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookpublisherWellington___J__Hughes__Printer">Wellington : J. Hughes, Printer</a><br><b>Contributing Library</b>:  <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookcontributorMBLWHOI_Library">MBLWHOI Library</a><br><b>Digitizing Sponsor</b>:  <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/booksponsorMBLWHOI_Library">MBLWHOI Library</a><br><br><b>View Book Page</b>: <a rel="nofollow" class="external text" href="https://archive.org/stream/transactionsproc20newz/transactionsproc20newz#page/n42/mode/1up">Book Viewer</a><br><b>About This Book</b>: <a rel="nofollow" class="external text" href="https://archive.org/details/transactionsproc20newz">Catalog Entry</a><br><b>View All Images</b>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookidtransactionsproc20newz">All Images From Book</a><br>
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<center>Genus <b>Tintinnidium.</b></center>
<p>  <i>Tintinnidium fiuviatile</i>, Stein, var. <i>emarginatum</i>, var. nov. Plate III., fig. 16, <i>a</i>, <i>b</i>, <i>c</i>, <i>d</i>.<br>
  Animalcules excreting a cylindrical, gelatinous tube or lorica, attached by its base to aquatic plants, or rarely to stems of <i>Zoothamnium</i> or <i>Epistylis</i>; at times free-swimming. Lorica transparent, but usually covered by a quantity of vegetable or other particles adhering to it. Animalcule white, campanulate, attached to the base of the tube by a slender, highly-retractile pedicle; when fully extended reaching only to the mouth of the tube, or projecting very slightly beyond it. Peristome occupying almost all the width of the tube, the edge not at all, or very slightly, recurved. Peristome-edge on one side entire, bearing a number of long, thick, cirrose cilia; the other side bearing very few, shorter, cirrose cilia, and apparently cleft into three divisions, the middle one bearing no cilia; this median division pulsates regularly up and down as on a hinge. On the anterior portion of the body, below the peristome-edge, are a few short, straight, fine setae placed at right angles to the margin; possibly, if the tube permitted full examination, these might be seen to extend to the pedicle. Contractile vesicle single, spherical, situated a little below the peristome-edge. Nucleus not observed.
Animalcules may frequently be seen unattached within their tubes, as in fig. 16, <i>a</i> (the right-hand figure); they then escape at pleasure from the tube and become free-swimming, in the form shown in fig. 16, <i>c</i>, when they may easily be mistaken for free <i>Vorticella</i>. In the end-view of such a form the adoral cilia are seen to be disposed spirally (fig. 16, <i>d</i>) as in <i>Strombidium</i>, and the motion is rapidly rolling.<br>
  Food-particles appear to be taken in at the two small clefts on one side of the peristome-edge, shown in fig. 16, <i>b</i>, and the pulsating middle division seems to act after the manner of a valve.<br></p>
  The structural details above given are not easily observed on account of the covering of foreign particles on the lorica, and the fact that the animalcule scarcely protrudes beyond the orifice of the tube. Sometimes, however, a lorica less thickly coated permits fairly close observation.<p class="mw-empty-elt"></p>
<p>  Length of animalcule, including pedicle, 1/250 inch = 100 µ.<br>
  Saville Kent makes no mention of any divisions on the peristome-edge of <i>T. fluviatile</i>, and his description of that species is by no means full. In <i>T. semiciliatum</i>, Sterki, he mentions both a "cleft" oral region and a "lip- or tongue-like organ." But he seems doubtful whether Sterki's form is not really the same as Stein's. The main character of <i>T. semiciliatum</i>, if quite certain, is the pectinate form of the adoral cilia. This is not noticeable in our New Zealand animalcule. On the whole, it seems possible that all the freshwater species of this genus may be identical, and the present is only offered as a "variety," subject to future revision. No species of <i>Tintinnidium</i> seems to have been reported anywhere else since the publication of Kent's monograph.<br><br></p>
<center>Order. Peritricha.<br>
Genus <b>Strombidium.</b></center>
<p>  <i>Strombidium intermedium</i>, sp. nov. Plate III., fig. 17, <i>a</i>, <i>b</i>, <i>c</i>.<br>
  Animalcules free-swimming, ovoid, with a short posterior prolongation; colour whitish, with enclosed granules; about one and a half times longer than broad; anterior border rounded, posterior projection tapering nearly to a point. On the anterior portion is a ring of long, fine cilia, which in end-view (fig. 17, <i>b</i>) are seen to be disposed spirally. Contractile vesicle single, close to the posterior projection. Nucleus elongate-oval, placed diagonally below the ring of cilia. No cilia on any part except in the ring. Motion excessively rapid, jerking, and difficult to follow. An example observed of reproduction by fission is shown in fig. 17, <i>c</i>; the two bodies are at right angles to each other.<br>
  Length, 1/875 inch = 38.5 µ.<br>
  Otaki, W. M. Maskell.<br>
  Intermediate between <i>S. claparedii</i>, Kent, and <i>S. gyrans</i>, Stokes.<sup>*</sup><br></p>
<center>Genus <b>Mesodinium.</b></center>
<p>  <i>Mesodinium phialinum</i>, sp. nov. Plate III., fig. 18, <i>a</i>, <i>b</i>.<br>
  Animalcules free-swimming, shaped like a small jar or bottle, divided unequally by a ring, at the base of which are a number of longish, straight, fine cilia, which in end-view (fig. 18, <i>b</i>) are seen to be disposed as rays, not spirally; above the ring the body is prolonged in a sub-conical projection, deeply concave at the top. Contractile vesicle single, spherical, placed posteriorly. Nucleus small, spherical, sub-central. Motion excessively rapid, rotatory, varied by violent leaps and jerkings.<br>
  Length, including projection, 1/1400 inch = 17.8 µ.<br></p>
<hr><dl><dd>* "Quart. Journ. Roy. Micros. Soc.," Feb., 1887, p. 37.<p class="mw-empty-elt"></p></dd></dl><p><big>Transactions New Zealand Institute, Vol. XX. Pl. III.</big>
<br><b>Text Appearing After Image:</b><br><i>W.MM.delt NEW ZEALAND JNFUSOR//I. C.H.P.M. Maskell.—On Freshwater Infusoria. 13 Otaki, in company with Strombidium, TV. M. Maskell. This form is more angular and jar-shaped than M. acarus,Stein. M. recurmm, Kellicott, has two rings of cilia. M. fun-briatum, Stokes, I has cilia with divided ends. Genus Carchesium.Carchesium polypinum, Linn. Hutt Valley. Genus Zoothamnium. Zoothamnium limpid/urn, sp. nov. Plate III., fig. 19, a, h. Animalcules regularly campanulate, similar in shape andsize when expanded ; surface smooth; colour white ; placed onbranches of a long, thick, quite smooth retractile pedicle, thewhole contracting together (the muscular fibre being continuous,Fig. 19, b) ; peristome-edge of medium thickness, slightlyrecurved. Contractile vesicle single, sub-central. Nucleusdoubtful. The pedicle is, proportionately, a good deal longerthan usual in the genus. Length of bodies, about 3^ inch =83 p. Pedicle sometimesnearly ■£$ hich long before branching. Wellington, C. P. Po</i><br><br><b>Note About Images</b><br></p>
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