COLPODELLA. 



[ 195 ] CONCHOPHTHIRUS. 



situated at the bottom of the notch, anc 

 furnished with a projecting lip. 



C. cucullus (PL 31. fig. 25). Turgid 

 slightly compressed, reniform, often nar- 

 rowed in front ; length 1-1720 to 1-280" 

 Common is vegetable infusions, especially 

 of hay. Ecdysis has been observed in this 

 animalcule. 



Stein describes the encysting process and 

 reproduction from germs as occurring in 

 this infusorium. 



C. ? ren. Ovato-cylindrical, reniform, 

 rounded at the ends; fresh wat. ; length 

 1-280". 



C. ? cucullio (Loxodes cue. , Duj.). Com- 

 press< 

 front 



id, flat, elliptical, slightly sinuous in 

 ; fresh wat. ; length 1-900". 



C. parvifrons, Cl. & L. No anterior re- 

 curvature, contractile vesicle not terminal. 

 Fresh water. 



BIBL. Ehr. Inf. 347; Duj. Inf. 478; 

 Stein, Infusionsth ; Claparede & Lachniann, 

 270; Kent, Infus. 512. 



COLPODEL'LA, Cienk. A genus of 

 Flagellate Infusoria. 



Char. Free or adherent, ovate or elon- 

 gate, one flagellum, with a suctorial cavity 

 at the base ; becomes encysted. 



C. puynax (PI. 53. fig. 14). Fresh water ; 

 preying on Chlamydomonas ; length 1-2000' ' . 

 (Kent, Inf. 378.) 



COLPODI'NA, Cl. & L. A family of 

 Infusoria, characterized by the presence of 

 cilia all over the body, the patent and cili- 

 ated oesophagus, and the absence of rows 

 of buccal cilia directing the particles of 

 food to the mouth. 



Genera : 



Membranous lips absent. 



No setae projecting from the 



mouth 1. Paramecium. 



Setae proj ecting from the mouth. 

 A bundle of short setae form- 

 ing a lower lip 2. Colpoda. 



Oral setae long, isolated. 



No ventral setae 3. Cydidium. 



A bundle of ventral setae... 4. Pleuronema. 

 Lips membranous, oscillatory 5. Glaucoma. 



COLPONE'MA, Stein. A genus of 

 Flagellate Infusoria. 



Char. Free, ovate, pointed and curved, 

 with a ventral groove ; flagella two, one 

 apical and vibratile, the other ventral and 

 trailing. 



C. loxodes. Fresh water (Kent, Inf. 

 297). 



COLUREL'LA, Bory. Duj. = Colurus, 

 Ehr. 



COLU'RUS, Ehr. A genus ofRotato- 

 ria, of the family Euchlanidota. 



Char. Two frontal eye-spots; tail-like 

 foot forked; carapace cylindrical or com- 

 pressed. 



Carapace open beneath ; cervical append- 

 age curved; jaws with two or three teeth 

 each. 



C. deflexus (PI. 43. fig. 12, dorsal view; 

 13, ventral view ; 14, teeth). Carapace 

 ovate, compressed, its posterior points 

 long and directed downwards; terminal 

 points of foot (toes, E.) shorter than the 

 foot itself; length of carapace 1-240". 

 Freshwater. 



C. caudatus. Carapace ovate, compressed, 

 posterior points of carapace distinct, points 

 of foot longer than the foot itself ; fresh- 

 water and marine ; length 1-240". 



C. ? uncinatus and bictispidatus are doubt- 

 ful species, 



BIBL. Ehr. Infus. 475. 

 COMBEA, D.N. A genus of podetii- 

 form Lichens, tribe Roccellei. 1 species, 

 C. mollusca ; rocks, Cape of Good Hope. 



BIBL. Ach. Meth. 235, pi. 4. f. 5 ; Nyl. 

 Syn. 257, pi. 8. f. 1. 



COMPRESSOR. INTRODUCTION, p. 

 xxiii. ; Ross's new compressor is described 

 in Qit. Micr. Jn. 1864, 44, 



COMP'SOGON, Mont. A genus of Le- 

 nianeeoe (Confervoid Algae). 



1 European species : C. Corinaldii. Ca- 

 pillary, much branched, violet. Freshwater. 

 CCJNCEPTACLE. A form of fructifi- 

 cation in the FLORIDE.^ and FUCOIDEJE. 

 Also occurring in the fructification of some 

 Fungi. 



CONCHCE'CIA, Dana. A genus of Os- 

 tracode Entomostraca, fam. Conchceciadse. 

 Char. Those of the family. 

 C. oltusata, Sars. Shetland. 

 BIBL. Dana, Crustac. Explor. Expedit. 

 &c. ; Sars, Oversigt af Norges mar. Ostr. 

 118 ; Brady, Linn. Tr. xxvi. 469. 



CONCHCE'CIADJE. A family of En- 

 tomostraca, of the order Ostracoda. 



Char. Inferior antennas 2-branched, one 

 branch rudimentary and immoveable ; feet 

 2 pairs, posterior rudimentary, eyes none. 

 1 genus, Conchcecia. 



JONCHOPHTHI'RUS,Stein. Agenus 

 of Holotrichous Infusoria. 



Char. Free, oblong, dorsally convex, 

 striate. 



C. anodont(e=Leucophrys an. Ehr. In 

 the " body-mucilage " of freshwater Mol- 

 lusca. 2 other species. (Kent, Inf. 490.) 



o2 



