WORMS. INFUSORIA. 107. Cercaria. ftt 



|?6rfo« Globular* contracted in the middle, with a fetaceous taiL 



Adams Microfc. p. 494. tab. 25. fig. 30. 



J3tf</y pellucid, partly oval, partly fphserieal, appearing compofed 



of 2 unequal globular bodies: tail fometimes ftraight, fome- 



times reflected. 



jPodurd. Cylindrical, taper* pointed and (lightly cleft behind, 

 Adams Microfc. p. 494 tab. 25. fig. 36, 37. 

 In marlhy places : pellucid, with black molecules on the trunk : 

 bead rounded, with a contraction a little below it. 



\Mutabilis Changeable, cylindrical,- red or green, with a pointed 

 (lightly bifid tail. 



Sbdiv Natur, MifcelL tab. 107. 



Found in ftagnant pools in fuch innumerable myriads as,to cover 

 the whole furface with a fheet of green or red* giving it fome- 

 times the appearance of being tinged with blood ; varies its 

 pofture from a long cylindrical body larger in the middle to a 

 nearly globular one : the extremities. arc pellucid. 



\a~tellus. Body 3 -parted, with a forked tail. 



Adams Microfc. p. 496. n, I 34. 



In water where flowers have been kept : head moveable, affixed to 

 the body by a point; abdomen not Co wide, but twice as long 

 as the head, and filled with inteftines : tail Ihorter than the 

 head and narrower than the abdomen, ending in 2 briftlefi 

 which it can unite and feparate at pleafure* 



\Lupus» Cylindrical, thick, elongated, the tail ending in 2 fpines. 

 Adams Microfc* p. 497. tab. 25. fig. 39. 

 In ftagnant waters: bead truncate, divided from the body by a 



contraction: tail much 1 narrower than the body and ending in 



2 bright moveable fpines, 



yermiou* Cylindrical, annulate, with an exfertile probofcis and fork - 

 \faris % ed tail. 



Adams Microjc. p. 497. tab. 25, fig* 40. 



In ftagnant water: body divided into 8 or 9 annulations, tapering 

 towards the tail, the tip either obtuie or lunate* 



'\leuronectes Orbicular, the tail confilling of one bridle. 

 Adams Microjc. p. 498. n, I 39. 



In water which has been long kept : in the fore-part are 2 black- 

 ifh points, and orcicuUr mteihnes in themidd.e. 



Wrtpus.- Nearly triangular, with a pointed reflected arm each fide 

 and ftraight tail. 

 Ada?ns Microfc. p. 498. tab. Zy.fi 38. 

 In laic water: body flat, pellucid. Cjclidium.- 



