306 MOLLUSCA. 
labial tentacles subulate, smooth; cervical tentacles compressed and 
ciliated at their margins. Mouth vertical, with prominent lips, fur- 
nished with a pair of corneous plates whose contiguous edges are 
finely serrate. Foot rounded, and destitute of lateral prolongations 
in front, tapering to along, slender point behind. Motions very quick, 
and the animal much annoyed by exposure toa strong light. [3. Pp. c.] 
Full length two and a half inches; breadth of foot one-fourth of an 
inch. 
Found by Mr. North on a fragment of Megacystus, off the coast of 
Chili, lat. 36° 5’; long. 74° W. 
Figures 401, 401 a, lateral and ventral views of the animal; 401 8, 
the mouth ; 401 c, branchial papilla; 401 d, jaws. 
Eo.is CYANELLA, (Couthouy MS.) 
E. elongata, straminea ; papille branchiales elongate, cyanea, apicibus 
purpureo tinctis, in fasciculos utrinque decem glomerate: caput orbi- 
culare; tentacule labiales graciles; tentacule cervicales compress@, 
ciliate: pes latus, angulis antertoribus valde eductis. 
Body limaciform, moderately convex, straw-coloured; branchial 
papille in ten distinct clusters on each side of the back, from three to 
six in each cluster, of clear blue colour, tipped with purple. Head 
orbicular; labial tentacles long and slender; cervical tentacles com- 
pressed, ciliated at the edges; foot rather broad, with long lateral pro- 
jections at its anterior angles like an additional pair of tentacles. 
(a Ca 
Length two-fifths of an inch. 
A beautiful little species found with the preceding. 
Figures 402, 402 a, lateral and ventral views of the animal; 4024, 
the mouth; 402 c, branchial papille, all enlarged ; 402d, natural size. 
