HIPPOLYTE. 119 



Pans and Crail. The variation in colour generally agrees 

 with the prevailing colour of seaweed in these pools j some- 

 times it has the red hue of Delesseria, at other times it is 

 dark green or light green, and the colour sometimes remains 

 for months after death."* 



Hippolyte fascigeea, Gosse.t The Plumed Hippolyte. 

 — Beak straight, acuminate, with two teeth above, the one 

 at the base and the other near the apex ; two teeth below, 

 the one near the middle the other near the tip. Body 

 studded with deciduous tufts of plumes. 



Hab. Weymouth Bay. Length 7-8ths of an inch. The 

 most remarkable character of this species is the presence of 

 six tufts of plumose bristles on each segment of the body ; 

 each tuft consists of from ten to fifteen plumes, diverging. 



It is generally pellucid-white, clouded with opaque drab, 

 and generally blotched with dark reddish-purple, 



Hippolyte Gray an a, Thompson. — Beak long, hollowed 

 out above and below ; above, unarmed, with one tooth near 

 the tip ; beneath, with three teeth. Abdomen compressed, 

 of even depth as far as the posterior edge of the third seg- 

 ment, and then becoming suddenly very much contracted, 



* Dr. Howden, Trans. "Roy. Pliys. Soc. Edin. Jan. 1853. 

 f Gosse, Ann. and Mag. 1853, p. 153. 



