692 WORMS. ZOOPHYTA. 103. Hydra. 



*Grifea. With about 7 tentacula longer than the body. 

 Adams tff Ktemn. Microfc. p, 364. tab. 2 if, 6. 

 PkilofTranfaS, 57. / 430. tab. g. 

 Trembley Pelyp, 1. p. 22. lab. I»jf.-2. 

 Baker Microfc. tab. 7. /* 3 — 7. 

 Ledermulier Microjc. tab. 67. m. 

 J?o$/! 7«/^ 3. />o/y/>. /. 473. /«£. 78—83. 



Inhabit^ rivulets and ft a en art waters; yellowim, tapering to- 

 wards the bafe, with fometimes 12 arms or tentacula. 



P aliens. With about 6 tentacula as long as the body. 

 Roej. la/* 3. polvf>. p. 465. tab. 76, 77. 

 Inhabits clear waters of Europe^ but not fo common as the others : 



body pale yellowifh, tapering towards the bale, very tender^ 



with whitifh tentacula or arms. 



:>rdi,r 



