Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature . objects themselves by meansof the neutral-tint reflector, with the utmost atten-tion to accuracy of outline and completeness ofdetail, will, I trust, serve to convey a sufficientlycorrect idea of them. I. Chcetospira Mutteri, found hitherto in theopen cells of torn leaves of Lemna trisulca, growingin fresh water near Berlin, is occasionally obtainedfrom the ponds and ditches of this neighbourhood(Reading), but so far as my observations extend,it selects in preference those of the fr
Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature . objects themselves by meansof the neutral-tint reflector, with the utmost atten-tion to accuracy of outline and completeness ofdetail, will, I trust, serve to convey a sufficientlycorrect idea of them. I. Chcetospira Mutteri, found hitherto in theopen cells of torn leaves of Lemna trisulca, growingin fresh water near Berlin, is occasionally obtainedfrom the ponds and ditches of this neighbourhood(Reading), but so far as my observations extend,it selects in preference those of the frond and rootletof Lemna minor. The flask-shaped sheath is whollyimmersed within the frond, the internal cell-wallsof which are broken down to afford it the requiredaccommodation, and secure the animal, in additionto its own horny sheath, the further protection ofthe cuticle of the plant. The ciliated feather-likespire alone projects, and when fully extended makesa complete turn. The terminal cilium is somewhatthe longest. A small opening, presumably the oralorifice, may be detected at the base of the Fig. 115. Chcttospira Mdlleri x 380. Though mostly solitary, more than one is some-times found in the same frond. On one occasion agroup of five small specimens was met with, lodged 126 HARDWICKES SCIENCE-GOSSIP. [June 1 1868. in adjoining cells of a Lemna root. To accommodatethemselves to these narrow quarters, their sheathswere placed in the vertical direction,—that of thecells, their spires being thrust out at right angles. The Chcetospira Miclleri, though now, I believe,for the first time announced as a British species,will prove, I have little doubt, by no means a rareone. Small, extremely sensitive, retracting withinits sheath on small disturbance, slow to emergefrom it, and concealed within the Lemna, it mayreadily be overlooked. I am persuaded, however,that a diligent search for it would be rewarded byits detection in many other localities besides theimmediate vic
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