the rotifera

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Nonne vides, quacunque mora fluidoque calore Corpora tabuerint, in parva animalia verti ? OVID, Metam. xv. 3G2. Equidem turn Naturae rerum gratias ago, cum illam non ab hac parte video, quae publica est, Bed cum secretiora ejus intravi. Curiosus spectator excutit singula et quaerit. Quidni quaerat ? Scit ilia ad se pertinere. Quantiun enina est, quod ante pedes jacet. SENECA, Nat. Quccst. praef. (adapted by O. F. MULLER). 'T is born with all: the love of Nature's works Is an ingredient in the compound man, Infused at the creation of the kind. . . . It is a flame that dies not even there Where nothing feeds it: neither business, crowds, Nor habits of luxurious city life, Whatever else they smother of true worth In human bosoms, quench it or abate. COWPER, The Task. http://rcin.org.pl
CHAPTER IV. ON THE HAUNTS AND HABITS OF THE ROTIFERA. THAT the first thing to be done is to catch your game, is a maxim as applicable to Rotifera as to hares; and it is no less true of these that to hunt for them successfully requires some knowledge of their haunts and habits. To carry away from a pond's side a bottle of dirty water full of slimy weed, is by no means a good plan for catching these animals, even the commonest and coarsest. It is true that there are some fine forms which may be found in very dirty ponds, or even in dirtier puddles : for instance, there can hardly be too dark a farmyard puddle for Hydatina senta, which rejoices in the drainings of a manure-heap, even when the water is of so deep a colour that it is impossible to see the animals in it when you have got them. Triarthra, too, and the beautiful Notops 1 clavulata are to be met with in cattle ponds, where the water is like pea-soup ; and Brachioni of all kinds rejoice in such places, especially when green with Euglence and alive with the motile seeds of algae. Indeed, there is one Brachionus, B. angularis, whose presence in a pond bids us put up our bottles and go elsewhere, as it likes water that will support hardly any Rotiferon but itself. Floscularia, Stcphanoceros, Melicerta, Limnias, and (Ecistes are, of course, to be found only in such places as pond weeds will grow in healthily. Old ponds that have been left long undisturbed are their favourite haunts. Floscularia is a very wide-spread genus, at least so far as one or two species are concerned ; and these may be looked for with every prospect of success in any such pond. Most of the finer and rarer kinds have been found in the Scotch lakes by Mr. Hood, who during the last four years has doubled the number of recorded species by his discoveries in the lochs round Dundee. Stcphanoceros, though by no means a rare Rotiferon, is more partially distributed ; it is found often enough in ponds near London and Birmingham; but I have not heard that a single specimen has ever been met with in the neighbourhood of Clifton. It appears also to be rare in Scotland ; as Mr. Hood has found it only once or twice, in marsli-pools in Perthshire. Melicerta ringens is to be found almost everywhere. It has even been seen swarming in one of the aquaria in the parrot-house in the Clifton Zoological Gardens. The roots of duckweed, the fibres of algse, the leaves of Myriophyllum, and of all sorts of water plants, bear this very common species, as they do also the tubes of Limnias and (Ecistes. Lacinularia and Megalotrocha have similar tastes, but are less frequently met with, especially the latter. This must be a comparatively rare genus, as it has been sent to me but three or four times in many years. Cephalosiphon is also rare. I once found a large colony of it, on a water weed at Nailsea in the big pond near the railway station, and it has been sent to me from Cheltenham and London; 2 but I never met with it again. Conochilus is a lover of clear water. I have found it in Loch Lomond, and Dr. Imlioff has obtained it, in abundance, in the middle of Lake Zug. It is common enough 1 Notommata clavulata ; Ehr. 2 Miss Saunders, to whom I am indebted for the specimens, says : " It is curious I never before came across this tube-dweller in the hundreds of pools I have searched." http://rcin.org.pl
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Page 7 and 8: THE ROTIFERA; OR WHEEL-ANIMALCULES.
Page 9 and 10: THE EiOTIPEEA. YOILUME I. http://rc
Page 11 and 12: THE BOTIFEBA; OR WHEEL-ANIMALCULES,
Page 13 and 14: PREFACE. NEARLY fifty years have pa
Page 15 and 16: CONTENTS OF T H E F I K S T VOLUME.
Page 17 and 18: THE ROTIFEBA. CHAPTER I. B http://r
Page 19 and 20: CHAPTER I. INTIiODUCTION. ON tlie S
Page 21 and 22: animal, very suitable for the purpo
Page 23 and 24: the mastax ; and there is a posteri
Page 25 and 26: more effective tlian this hydrostat
Page 27 and 28: coitus, but Mr. Gosse had this good
Page 29 and 30: CHAPTER II. THE HISTORY OF THE LITE
Page 31 and 32: CHAPTER II. THE HISTORY OF THE LITE
Page 33 and 34: (i) how the Rotiferon, when drawn u
Page 35 and 36: Tlia book, published in 1718, consi
Page 37 and 38: His criticisms are shrewd and often
Page 39 and 40: CHAPTER III. ON THE CLASSIFICATION
Page 41 and 42: CHAPTER III. ON THE CLASSIFICATION
Page 43 and 44: (b) The second form is a simple seg
Page 45 and 46: 4. Incudate (fig. 32). Mallei evane
Page 47 and 48: Fam. 7. Synchatada (PI. C. fig. G).
Page 49: CHAPTER IV. ON THE HAUNTS AND HABIT
Page 53 and 54: tremula, are very different. The fo
Page 55 and 56: If the Rotifer hunter can rise to a
Page 57 and 58: CHAPTER V. FLOSCULARIAM. http://rci
Page 59 and 60: CHAPTER V. Order I. RHIZOTA. Fixed
Page 61 and 62: im of the corona. Owing to their gr
Page 63 and 64: on the dorsal surface. A partial se
Page 65 and 66: the young reared from its eggs, tho
Page 67 and 68: sented to him so that its upper and
Page 69 and 70: counted 1 in one tube. Tliis beauti
Page 71 and 72: The peculiarity of a second fringe
Page 73 and 74: that it looks like that of an QZcis
Page 75 and 76: duct wliicli divides into two later
Page 77 and 78: setae are far longer than they appe
Page 79 and 80: No male has as yet been recorded, b
Page 81 and 82: CHAPTER VI. MELICERTAM. a http://rc
Page 83 and 84: CHAPTER VI. Family II. MELICERTADiE
Page 85 and 86: are two moderate-sized gastric glan
Page 87 and 88: grows in size from tlie addition of
Page 89 and 90: Tubicolaria Naias . . . . Pritchard
Page 91 and 92: (fig. le); and below it, at right-a
Page 93 and 94: Mr. .Tatem [loc. cit.) described an
Page 95 and 96: The gradual changes of form in the
Page 97 and 98: [This very striking species I found
Page 99 and 100: (E. BRACHIATUS, Hudson, Sp. 110V. (
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forms a rectangular bundle that is
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M. ALBOFLAVICANS., Ehrcnbcrg. (PI.
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Genus CONOCHILUS, Ehrenberg. GEN. C
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surface, down to the cloaca. The vi
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CHAPTER VII. BDELLOIDA. http://rcin
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CHAPTER VII. Order II. BDELLOIBA. S
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All tlie Eotifera seem to possess t
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is difficult to suggest how this is
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ventricose, and marked more distinc
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Genus ROTIFER, Schrank. GEN. CH. Ey
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R. TARDUS, Ehrenberg. (PL X. fig. 1
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This species I have met with on sev
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Genus CALLIDINA, Ehrenberg. GEN. CH
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a yellowish-green cellular mass, a
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vesicle was also plainly visible :
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CHAPTEK VIII. PLOIMA (IL-LORICATA).
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CHAPTER VIII. Order III. PLOIMA. Sw
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ventral surface. Dr. Grenadier says
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inwards at the ventral surface, to
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A. PRIODONTA, Gosse. (Pl. XII. fig.
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Genus SYNCHCETA. GEN. CH. Form usua
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lobes are brought forward, and then
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THE ROTIFERA. VOLUME II. http://rci
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THE ROTIFERA; OR WHEEL-ANIMALCULES
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CONTENTS OF T H E S E C O N D V O L
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CHAPTER IX. PLOiMA IL-LORIC ATA—c
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CHAPTER IX. Family VIII. TRIARTHRAD
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expanding to a broad truncate margi
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intervals, and unite with the broad
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a tube, rich in Rotifera, sent me b
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as an organ of touch. The inner cil
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ventral side of the nervous ganglio
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Genus ALBEltTIA, Dujardin. [GEN. CH
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otatory organs to be wanting. Yet,
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whom I have received many specimens
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developed, and opaque with chalk de
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N. PILARIUS, Gosse, sp. nov. (PL XV
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sensibly at three-fourths from the
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I first found this species in vario
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senta and Euchlanis deflexa ; these
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" tag." From eacli toe runs up a th
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dark green, very slender, nearly st
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ant me in placing it in this genua.
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the viscera. 1 Its manners are live
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thin and blade-like, straight but s
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F. FORFICULA, Ehrenberg. (PI. XX. f
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This species is much like the prece
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a species of Euplotes, and a few of
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certainly right in distinguishing t
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(" 20 JUL 88 - i NOTOMMATAD^E. \+ 4
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the slender fore parts were retract
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I am not quite clear whether I ough
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lip is retracted, close against eac
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CHAPTER X. PLOIMA http://rcin.org.p
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CHAPTER X. Sub-Order LORICATA. Inte
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form. I did not discern any eye, bu
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a single vortex. Behind the head is
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R. TiGiiis, Milller. (PI. XX. fig.
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The hinder body is ventricose, grea
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This species has manifest affinity
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three genera is also very different
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Tliis Dinocharis was discovered by
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follow the arch of the dorsal. I de
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Mr. J. G. Tatem (" Quart. Journ. Mi
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D. HOODII, Gosse, sp. nov. (Pl. XXI
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D. TENUIOR, Gosse, sp. nov. (PI. XX
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long side (the dorsal) unsewn, whos
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much exceeded by the stout straight
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Of the two noble species for which
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To get a clear notion of tlie form
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Euchlanis dilatata . . . Moxon, Tra
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striate. An eye-spot wliicli appear
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with two equidistant incisions, at
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however, very thin and flexible, so
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OATH YPN AD.ZE. 99 frontal disk, an
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Family XVI. COLURID^E. [Body inclos
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and what appears a single, slender,
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Length. From hood to ends of lorica
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This charming species, though in te
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M. BRACTEA, Ehrenberg. Squamella br
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associate. The species is another o
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a distance of about one-third of th
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PTERODINAD.E. 115 the Firth of Tay.
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and thick muscular tube, very trans
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where the species is named rubens.)
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(Pl. XXX. fig. 9a). This is a littl
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cilia produce vortices, but not whe
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tlie lateral pair projects from the
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have an eye which has every appeara
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CHAPTER XI. SCIRTOPODA. http://rcin
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CHAPTER XI. Order IV. SCIRTOPODA. S
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chitinous lips, which may be seen c
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APPENDIX. THE VASCULAR SYSTEM. %* T
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ends, or are they closed ? Do they
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less obvious connection with the ex
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BIBLIOGRAPHY OF THE ROTIFERA. 141 5
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GENERAL INDEX. Vol. Page VoL e age
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T H E ;OTTFER'\ jKJ -W9* w ? - : .
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