WORMS INTESTfNA. 20. Hirudo. 69 



Found frequently in ftagnant waters, ditches and ponds; 4 — $ 

 inches long : body above dull o'ive-black, with an ochre margin, 

 each fide ; beneath paler, with fometimes a few black fpots ; 

 tail thicker than the head. This fpccies fuefca blood with 

 great avidity and in large quantities. 



Uneata, Elongated, grey, with 4 longitudinal black lines on the 

 back. 



MulliHi/i, Verm. 2, f. 39, n. 169. 



Found early' in the fprirg in ftagnant waters; about an inch and 

 a half long : body annulate with numerous wrinkles ? and with 

 6 deep black eyes in a double tranverfe row. 



•Octocula- Elongated, yellow-brown, with 8 eyes in a lunate feries, 

 ta* Act.Stockb- 1757, tab 6, fig. 5 — 8. 



Inhabits ftagnant waters, among aquatic plants, and preys prj 

 monoculi and the fmaller animalcules; about 15 inches long. 



Body fometimes brovyn immaculate, iomeiimes fpnnkled aboyg 

 with black dots ; fometimes brown with yellowifli 'dots above; 

 fometimes yellow-brown with a knotty line in the middle and 

 a lateral blackifh one pinnate within on the fore-part ; fome= 

 times yellowifh with longitudinal lines, the middle one knot* 

 tj, the iateral ones with remote red dots : eyes often 9. 



*Sfagt?a/is f plongated, cinereous, with 2 eyes. 



Ad % Sicckb I 7 5 ~ , n. 4, tab. 6, jig. 9 — J I, 

 Inhabits wet hollovvb and rivulets; about 9 lines long, 

 B dy vhinfh, pebucid, ipnnkled with cinereous dots and plaited 

 at the iiae^: eggs about 40, iurrounded by a pellucid circlg, 

 cinerous at hrit and afterwards brown: the young after ex« 

 clufion adhere by their tails to the belly of the mother. 



*Ccmp!a- Body dilated, cinereous, with a rjquble tuberculate line Qfl 

 nata. the back, the margin ferrate, 



Atl. Stockh 1757, tab. b y jig. 12 — 14. 

 F. und in {hallow ftreams ; about 4 lines long. 

 Body with tranverfe bands compofed of 3 pale lines, the margin 

 wnitifh ; beneath grey: head pointed, white, with 6 eyes } 

 tail orbicular and cinereous. 



tFiridis. Body deprefTed, oblong, green with a tranfparent margin* 

 and pointed at the tail. 



Sha-zv. Tranja.fi' Linn. Soc,i,p. 93, tab. 7. 



Inhabits clear cold waters ; about an eighth of an inch long, and 

 like melt of the Genus has a powtr of reprodu&ion ajmoli 

 equal to that of the Polype; for if the animal be divided in 

 every direction, the parts will become perfect animals, and 

 jnay be again divided and again reproduced ad injin.itum. 



