CHILOMONAS. 



[ 166 ] 



CHLORASTER. 



CHILOM'ONAS, Elir.— A genus of Fla- 

 gellate Infusoria, of the family JMonadiua. 



Char. No tail nor eye-spot ; body ovoid, 

 oblong, siirmouuted by a lip ; with two very 

 delicate tiagelliform filaments ; revolving 

 upon its centre. 



C. volvox. Oval, narrowed and notclied 

 in front, colourless and transparent, lip long; 

 fresh water ; length 1-1400". 



C. paramecinin. Oblong, keeled, trila- 

 teral, coliiurless and opaque, sometimes ag- 

 gregated ; fresh water ; length 1-1020". 



(J. destruens. Oblong, variable in form 

 fi-om its softness, colourless or yello^vish ; 

 fi'esh water and marine ; length 1-800". 



C. gramdosa (PI. 30. fig. 28). Oblong, 

 broader in front, colourless, with granides 

 which appear to project on the surface ; 

 length 1-840". In an infusion of mosses. 



C. ohliqua. Ovoid or pyriform, nodular, 

 colourless, variable in form ; length 1-2700". 



BiBL. Ehrenb. Infus. 30 j Duj. Inf. 295; 

 Kent, Inf. 423. 



CHILOSTOMEL'LA, Reuss.— A Fora- 

 minifer, consisting of subovate chambers, 

 overlapping one another, almost completely, 

 on opposite sides alternately; with crescentic 

 almost terminal aperture. 



Fossil (Tertiary), recent (Atlantic and 

 Pacific). 



BiBL. 'Re\v-s. Denhschr. Ak. Wien, 18o0, 

 i, 16 ; Brady, Qu. Mic. Jn. xix. 66. 



CHIODEC'TON, Ach. — A genus of 

 Lichens (tribe Graphidei), of which one 

 species, C. myrticola, has been found in 

 Ireland ; and its var. sarniense in the Chan- 

 nel Islands. 



BiBL. Leighton, Aug. Lich. 24, pi. 8. fig. 

 4, pi. 9. fig. 1 ; Lich. Flor. 435 ; Tulasne, 

 Ann. Sc. Nat. 3 ser. xviii. pi. 10. 



CHIONY'PHE, Thienem.— A genus of 

 Mucorini (Phycomycetous Fungi), found 

 growing upon melting snow. 



Chionyphe Carferi, Berk., is a curious 

 fungus, which is supposed to be the cause 

 of that formidable disease the Fungus-foot 

 of India. It has, however, been doubted 

 whether it is really the cause, or only 

 a secondary growth on the truffle-like 

 nodules composed principally of stearine (?) 

 which are characteristic of the disease. 

 Hogg considers the disease somewhat simi- 

 lar to the amyloid lardaceous disease which 

 attacks various other parts of the body. 



BiBL. Thieneman, X(n-a Acta A. C. L. C. 

 xi. 1839 ; Ann. Sc. Nat. 2 ser. xiv. 03 ; 

 Intdl. Obs. 1862 ; Berkeley, Jn. Linn. Soc. 

 viii. 141, pi. 10; Carter, Ti: Med. and Vhys. 



Soc. Bomhaij, 1861, 1862, 1863 ; Ann. N. H. 

 vol. ix. 442, 1862; Mn. Mic.Jn. 1871. 



CHIROD'OTA, Eschsch.— A genus of 

 Echinodermata, closely allied to Synapta. 



C. violacea possesses curious wheel-like 

 calcareous plates in the skin. 



Not British. 



BiBL. V. der IToeven, Zool. i. 150 ; Car- 

 penter, J//c/-oscq/je, 564; HerapathjQw. Mic. 

 Jn. 1865, 1. 



CHITINE is the horny substance which, 

 gives firmness to the tegumentary system 

 and other parts of the Crustacea, Araclmida, 

 and Insects ; probably also the carapace of 

 the Rotatoria consists of it. It is left when 

 the above stiiictures are exhausted succes- 

 sively with alcohol, ether, water, acetic acid, 

 and alkalies, retaining the original form of 

 the texture. It is dissolved by concentrated 

 mineral acids without the production of 

 colour. It is not dissolved by solution of 

 potash, even when boihng. Neither does it 

 give the characteristic reactions ^^^thJMiUon's 

 or Schultze's tests. It contains nitrogen. 



BiBL. Odier, Mem. Mus. d'Hist. N. i. 

 p. 35 ; Lassaigne, Compt. Rend. xvi. p. 1087; 

 Schmidt, Vercjl. Phys. d. toirbellos. Thiere 

 (Taylor's Sc. Mem. v. p. 1) ; Pay en, Compt. 

 Eend. xvii. p. 227. 



CHLAMIDOCOC'CUS. See Proto- 

 coccus; also Cienkowsky, Lot. Zeit. 1865; 

 Rostafinsky, ibid. 1871 ; and liabenhorst, 

 Fl. AJq. iii! 94. 



CIILAMID'OJ>ON, Ehr.— A genus of 

 Infusoria, of the family Euplota. 



Char. Furnished with cilia and a cylinder 

 of teeth, but neither styles nor hooks. (Oxy- 

 tricha with a lorica and teeth.) 



C. mnemosyne (PI. 30. fig. 29). Elliptical 

 or the anterior end somewhat broader, ovate; 

 green or colourless, and containing rose-red 

 vesicles ; lorica projecting beyond the body; 

 length 1-570 to 1-240"; marine. 



BiBL. Ehr. Infus. 376 ; Kent, Inf. 



CHLAMIDOM'ONAS (PL 30. fig. 30ff, 

 b, c, d, e). See Protococcus. 



CHLAMYDOCYSTIS, Grunow, = Pro- 

 tococcics, part. 



CIILORAN'Gimr, Stein, =CoLACir jr. 



CII LOR ASTER, Ehr.— A genus of Fla- 

 gellate Infusoria. 



Char. Single, free, a single fi'ontal eye- 

 spot, no tail, middle of the body with ra- 

 diate warty processes. 



Allied to the genera Glenomorum and 

 Phacelomonas. Does not admit coloured 

 particles. 



C. yyrans. Green, fusiform, acute at the 



