128 JOURNAL OF THE NEW JERSEY 



tips with white which sometimes forms a ring. L. 10-32. 

 Mass. Ba}^ and northward. 



4. Coryphella Mananensis, Stim. Foot auricled, not very broad ; 

 tentacles rather thick, dorsal ones wrinkled ; branchiae slender, 

 irregular, and variable in length, arranged in clusters along the 

 sides. Color of body pale white ; dorsal tentacles brownish witli 

 pale tips looking as if hollow, oral ones with white specks along 

 the outer edge ; branchiae bright vermilion with a ring of flake- 

 white at the tips. L.35 — New England. 



5. Alderia, All. 



Animal oblong, without tentacles ; head lobed at the sides ; 

 gills arranged down the sides of the back. 



1. Alderia Harvardiensis, Ag. Animal square in front, broad, 

 lanceolate behind ; true tentacles none, but the lateral prolonga- 

 tions of the head triangular and tentacular-like ; gills short, club- 

 shaped, arranged in 6 or 7 clusters on each side, 2 — a longer and 

 a shorter one — in each cluster; foot twice as broad as the body, 

 so that, by rolling the edges upward, the gills are partially 

 covered. Ochreous brown; foot yellow\ L. 12; W. 4. — Mass. 

 In shallow pools of salt or brackish water. 



6. Stiliger, Ehr. 



Foot rounded in front; dorsal tentacles simple; oral tentacles 

 tuberculiform ; gills club-shaped. 



1. Stiliger fuscata, Gld. Animal terete, gradualh^ tapering 

 to a fine point behind; head not distinct, notched in front; the 

 ■ dorsal tentacles long and slender ; the oral ones mere bulgings 

 on the head ; gills long, club-shaped, quite slender at base; an 

 upper row of four, on each side, begins J along the body from 

 the front, growing shorter towards the tail, and a lower series of 

 5 or 6 smaller ones arranged alternately with the upper ones ; 

 dark slate colored above ; foot pale ochreous ; gills black with 

 white at both ends. L. 8; W. 1 ; Ten. 2; Br. l^— Mas. On 

 timbers. 



7. HERMiEA, Lov. 



Animal elongated ; tentacles folded longitudinally ; gills nu- 

 merous, arranged down the sides of the back. 



1. Hermsea cnisiata, Ag. Body very slender; foot narrower 

 than the body ; obtusely dilated at the front angles ; head small, 



