HYDIIA OLIGACTIS. 



315 



3. H. OLIGACTIS, Pallas. 



"LONC;-ARMED FRESHWATER POLYPE," Ellis, Corall. 10, pi. xxviii. fig. C. 

 HYDRA OLIGACTIS, Fall. Blench. 29 ; Johnsf. B. Z. 124, woodcut, fig. 27. 



,. FUSCA, Linn. Syst. 1320. 



.. VERKUCOSA, Templeton, Mag. Nat, Hist. ix. 418, fig. 57. 



Woodcut, fig. 42. 



POLYPITES brownish ; the lower part of the body suddenly 

 attenuated, so as to form a kind of peduncle ; tentacula 

 6-8, capable of great extension, to several times as long as 

 the body. 



THIS species is known at once by the sleuderness of the 



Fig. 42. 



inferior portion of the body, which has the appearance of 



