WORMS. INFUSORIA. 84. CerCaria. MS 



JddHts Micr, p. 525, tab, 27, /. 13, 14, 



in waiei ; kept some time $ smooth, pellucid, Jmigef thafl it \& 

 broedr filled with ydlew.ffleletwles, obtuse in ffetit, 



820. Tr. tongicaudu, Cylindrical, truncate and surroun- 

 ded with hairi in front, tail long, with g painti and 

 Sbmtlei. 



Adams Micn/cepe, p, 535, tab. a;,/, ie^ 



B. furnished with cirri. 



821 . Trv Marus. Round r tumid, cirratc behind, pointed 

 before. 



Adamt Microfcope p, $34, tab,t>},f, 97. 



In freih water 5 pear-shaped,, full of black molecules, the tip 

 pellucid and radiate with 4 long curved foft tendrils, 



822. Tr. Ludio. Gibbous, cirrate on one edge and hairy 

 on the other; tail forked stretched forward. 



Donovan Int. t. ao,/. a. Adams Micrafoju t. 27. /, a6. 



In stagnant water; ftnooth, pellucid, elavatc, lull of fmall pointr 

 cirri placed at top and in the middle. 



C. Horned. 



823. Tr. Histno. Oblong, with mucronate points on the 

 fore-part, and longitudinal tin-like bristles be- 

 hind. 



Adam* Microfcope p. 531. tab.^.f, ao. 



Body membranous; pellucid, with 4 or 5 black points on the fare-- 

 part, the middle with clofe black f pecks and a few large white 

 fpot ; near the lower-part a few longitudinal bristles, not reaching 

 beyond the body. 



824. Tr. Cyvris, Pear-shaped, sinuate towards the hind- 

 part, hairy on the lore-parti. 



Adams Micrnfcope p. 53 1 . tab . 27 . /. 2 1 . ' 



In ditch water; comprefsed, rounded behind. 



825. Tr. Patella. Covered with an univalve shell, emar- 

 ginate and homed in front, with pendulous flexile 

 bristles behind. 



Adams Misrofcope p. 531. tab. ay./. 22. 23. 



In marsh water; comprefsed, rounded behind. 



826. Tr. Pullasier. Oval, sinuate on the fore-part with; 

 a crest in front, hairy at the base.. , 



Adams Microfcope p. 532. tab. 27. /. 24. 25. 



In ditches; pellucid with shining molecules, truncate and fur 

 rounded with, hair in front, si,nuous on the fore-part. 



827. Tr. Mytilus. Oblong-, broader at each extremity; 

 transparent, ciliate and horned; 



Adams Microfcope p. 532, tab. 27. _/". 29. 



In marsh water, pellucid, white and rotinded at both ends, dark, 

 in the middle with black intcl'tines mixed with a few white mole- 

 cules, ciliate and armed with a horns in front, ctliate behind and 

 furnished with 2 briftles reaching beyond the margin. 



84. CERCARIA, 



828. C. Gifrinus. Round, with a sharp-pointed tail. 



Baker Microfe. expl. lab. ic.f. i ? 



In animal infusions; white, gelatinous, nearly globular on 

 the fore-part. 



