^OLis. 245 



their contents could be distinctly seen. Even on these a little para- 

 site with a circular body and a large quadrate head, fringed around 

 with vibrating cilia, was distinctly noticed. Another parasite was 

 quite abundant upon the branchiai, coursing up and down its sides 

 rajjidly, with ample room and verge enough. I have met with no 

 notice of anything of the kind, nor have I seen any figure like it. 

 The nearest approach is in Encijc. Meth. pi. 12, Jig-. 44-46 {Trich- 

 oda prceceps). It adhered by a small fringed disk, attached to which 

 by a short stem was an expansion somewhat like a Calla leaf, with 

 long incurved fringes at the edges. 



.aEolis stellata. 



Plate XIX. Figs. 271, 278. 



Body slender, pale white ; dorsal tentacles wrinkled transversely, long, but 

 shorter than oral ; branchiae few, arranged in about five clusters on each side, 

 those of second and third being longest, giving a star-like appearance to the an- 

 imal when rolled up ; foot strongly auricled in front. 



EoHs stellata, Stimpsox, Mar. Inv. Gr. Manan, 25 (1853). 

 toll's stellata, Stimpson, Check Lists, 4 (1860). 



" Body small, slender, elongated, pale white, pellucid ; head with 

 a flake-white patch above in front of the oral tentacles. Dorsal ten- 

 tacles long, but shorter than the orals, slender, wrinkled trans- 

 versely, especially in contraction. They arise very near together, 

 and bear the prominent black eyes at their bases behind. Oral ten- 

 tacles very long and slender, smooth and gracefully curved. Papil- 

 lae or branchiae rather few in number, long and slender, arranged 

 in about five clusters on each side, those in the second and third 

 clusters being longest. Foot narrow, pointed behind, and strongly 

 auricled in front. Colors : papillae bright crimson, tii)ped with a 

 ring of opaque white ; tentacles pale pink near their bases, with 

 their anterior halves wdiite." (^Stwipson.} Length, two fifths of 

 an inch. 



Found at Grand Manan, under stones at low-water mark. 



Resembles somewhat ^. ruftbranchialis., Johnst., but its foot is 

 not so long, nor its dorsal tentacles so tapering ; and its papillas 

 are fewer and longer. When disturbed, it rolls itself up so that its 

 branchiae project in all directions like the rays of a star. 



