CHROOCOCCUS. 



[ 173 ] 



CHYLAQUEOUS. 



taming rounded or ribbon-shaped yellow 1- 

 ciliated zoospores, 1-3000" long, each with a 

 yellow pigment-spot, and containing one 

 or two contractile vesicles ; these multi- 

 plied by division. The finer had the same 

 composition as the larger. Resting-spores 

 were formed in the empty cells of Sphagnum 

 and Hypnum, from which the motile forms 

 were traced. 



C. Rosanoffii, the single species. 



BIBL. Woronin, Bot. Zeit. 1880, 625, 

 641 ; Jn. Mic. Soc., 1881, i. 100. 



CHROOCOC'CUS, Nag. See PBOTO- 

 coccus. Rabenhorst retains this, as a 

 genus, with 23 species. 



CHROOLEPUS, Ag. A generic name 

 applied to certain byssoid structures found 

 on rocks, bark of trees, &c. They consist 

 of jointed, variously branched filaments, the 

 joints expanding to form sporangia, filled 

 with biciliate zoospores. C. aureum (PL 

 3. fig. 7) is composed of rigid opaque, ulti- 

 mately brittle filaments, forming soft cush- 

 ions of a yellowish colour; C. Jolithus, 

 odoratum, and lichenicola are of orange or 

 fulvous colour. Another series of species, 

 C. ebenea &c., are black, or purple. These 

 plants have been regarded sometimes as 

 Fungi and sometimes as Algae. 



Rabenhorst describes 11 species: the 

 genus forming the type of the family Chro- 

 olepidse (Confervoid Algae). Reproduction 

 by biciliated zoospores. Some species emit 

 a violet-odour. 



BIBL. Hooker, Brit. Flora, v. pt. 1. 384 ; 

 Engl. Bot. pi. 702 & 1639 ; Kiitzing, Spec. 

 Alg. 425; Caspary, Flora, 1858, 661 5 Ra- 

 benhorst, Fl. Alg. iii. 371. 



CHRYSALIDI'NA, D'Orb. A Textu- 

 larian Foraniinifer, with a triserial arrange- 

 ment of chambers and with large pores, 

 and sometimes tubes, opening from chamber 

 to chamber. Ch. gradata, D'Orb., is from 

 the Cretaceous strata of France. A dimor- 

 phous form, which is uniserial in its old 

 state, lives in the Indian ocean and Panama 

 Bay. 



BIBL. D'Orbiguy, For. Fo*s. Vien. 194; 

 Carpenter, Introd. For am. 193. 



CHRYSIME'NIA, J. Ag. A genus of 

 Laurenciaceae (Florideous Algae). 



C. clavellosa is a red sea-weed 3 to 12" 

 high, forming a feathery frond composed of 

 a branched, tubular, long, not constricted or 

 chambered, cellular structure, filled with a 

 watery juice. The spores are angular and 

 are contained in dense tufts in ceramidia 

 borne on the sides of the branchlets. The 



tetraspores are 3-partite and immersed in 

 the branchlets. 



BIBL. Harvey, Br. Mar. Alg. pi. 13 A; 

 Phyc. Brit. pi. 114. 



CHRYSO'MONAS, Stein. A genus of 

 Flagellate Infusoria. 



C. fla means = Manas fl. Ehr. ; has the 

 body ovate, a terminal flagellum, two 

 lateral colour-bands, no dilated pharynx, 

 and an eye-spot. Ditch water. 



BIBL. Kent, Infus. 408. 



CHRYSOPYX'IS, Stein. A genus of 

 Flagellate Infusoria. 



Char. Bodies ovate, contained in a sessile 

 lorica ; flagella 2, equal ; two colour-bands, 

 but no eye-spot. 



C. bipes. Lorica with two posterior 

 spines. Attached to the cells of Mougertia 

 or other freshwater algae. 



BIBL. Kent, Infus. 408. 



CHTHONOBLAS'TUS, Kiitz. See Mi- 



CBOCOLEUS. 



CHY'DORUS, Leach (Lynceus, Miill., in 

 part). A genus of Entomostraca, of the 

 order Cladocera, and family Lynceidae. 



Char. Nearly spherical ; beak very long 

 and sharp, curved downwards and forwards ; 

 inferior antennae very short. 



C. sphcericus (PI. 20. fig. 7) . Shell smooth ; 

 olive-green. Found in ponds and ditches. 



C. globosus. Shell more rounded than in 

 the last, and nearly six times as large ; an- 

 teriorly reddish, with circular striae and 

 numerous black spots ; fresh water. 



BIBL. Baird, Brit. Entom. p. 125 ; Nor- 

 man and Brady, Brit. Enton. pp. 47, 48. 



CHYLA'QUEOUS or chylo-aqueous li- 

 quid and system. 



In the Invertebrata, two distinct kinds of 

 nutrient liquids exist. In some classes of 

 this subkingdom, these two liquids coexist 

 in the same organism, though contained in 

 distinct systems of conduits ; while in others 

 they become united into one. Williams 

 distinguishes these two kinds of liquid as 

 the blood proper or true blood, and the 

 chylaqueous liquid. The former is always 

 contained in definitely organized (walled) 

 blood-vessels, and has a determinate circu- 

 latory movement; the latter, with equal 

 constancy, in chambers, irregular perivis- 

 ceral cavities, and cells communicating in- 

 variably with the peritoneal cavity; not 

 having a determinate circulation, but a to- 

 and-fro movement, maintained by muscular 

 and ciliary agency. The true-blood system 

 does not exist under any form, even the 

 most rudimentary, below the Echinoder- 



