228 WORMS. INFUSORIA. 90. 01. 



as it is broad; the forepart obtufe, hyaline; the hind-part filled 

 with molecules ; the fold reaching from the middle to the tip, 



84S. P. Chrysalis. Cylindrical, longitudinally plaited on 

 the fore-part, obtuse behind. 



Adams Micro/cope £.483. tab. 25./. 26. 



In fait water ; refembling the laft, but is more obtufe behind ; 

 the margins filled with black globules. 



849. P. oviferum* Depressed, with large oval molecules 

 within. 



Adams Micro/cape p. 483. tab. 25,/. 25. 

 Body oval, pellucid, with black grains. 



$50. P. marginatum. Depressed, grey, with a double 

 margin. 



Adams Micro/cope p. 483. tab. 25./. 24^ 

 Body flat, elliptical, with a clear fpiral intestine. 



90. CYCLIDIUM. 

 $51. C. Bulla. Orbicular, transparent* 



Hill Anim. t. 1. 2. Wrisb. infus.f. \.t. 



In infusions of hay ; pellucid, white, with the edges. a little 

 darker : motion slow and circular, 



$52. C. radians. Oval, with distinctly visible intes- 

 tines. 



Hill Hist. anim. tab. 1./. 3, 



In vegetable infusions; fmooth, pellucid, with a blue canal 

 within branching into 2 arms, and 2 tranfverfe lines just beneath 

 the middle of the body. 



853. C. Nucleus. Oval, ending in a point behind. 



Hill Hist. anim. tab. 1 . f. 4 ? 



In vegetable infusions, refembling a grape-feed j intestines visi- 

 ble, the fore and hind-part dark each side. 



$54, C. Pediculus. Oval, convex above, flat beneath. 



Trembley Polyp, i.p. 282. tab. 7./. 10. 11. 



On the arms of the Hydra fufca : gelatinous, whitish, eaeh' end 

 deprefscd and truncate, fometimes cloven at one end. 



91. VIBRIO. 



855, V. Lunula. Bow-shaped, pointed at each endt 



Adams Microfcope p. 458. tab. 25./. 16. 



Body green, with a few globules difpofed longitudinally* 



S56. V. Serpentula. Of an equal size, rather pointed at 

 the ends. 



Hill Anim.t. 1. Spallanz. Microfc.pi 189./. 2. 12. 



In vegetable infusions of several weeks standing; whitish,, 

 frequently convolute and drawn into various forms, marked witha- 

 longitudinal row of white dots. 



$57. V. Aceti. Rather rigid, with a tapering- pointed 

 tail, and a retractile protuberance at the base. 



Adams mkr. 1. 11./, 7. Bah. Mkr. t. io./» 8. 9. 



In vinegar and other mild acids; very fertile, pellucid, and 

 active ; is both viviparous and oviparous, 



858. V. Glutinis. Filiform, with a dark shield on the 

 back surrounded with a white ring ; head ob- 

 tuse. 



Adams Mkr. p. 462. tab. 11./. 6. 8, 9. to. 



