252 ^OLIDID.E. 



of Laomedea geniculala in the latter part of July, surrounded by 

 numerous clusters of ova. On visiting the locality a few days after- 

 wards the polype had died, and all the mollusks had disappeared 

 with them. This zoophyte seems to be their proper habitat. The 

 ova were deposited in small kidney-shaped masses. The plates of 

 the lingual ribbon are quite short, slightly curved anteriorly, with a 

 prominent central point and three lateral denticles each side. 



Some specimens which resemble this species in form of the papil- 

 lae, and the following species in coloration, I had indicated under 

 the name of E. lanceolata, on account of its broad anterior tapering 

 backwards and ending in a delicate point extending some 

 Fig. 521. tliytance beyond the papilla?. It is thus described : — 



Animal minute, cylindrical, light straw color, sparsely dot- 

 ted silvery. Head hooded, twice as wide as the body, slightly 

 emarginate in front and angular at the sides. Tentacles 

 E. lance- coulcal, sliglitly spreading at base, truncated at tip, watery 

 white. BranchifB in five tufts, two in each tuft, the lower 

 one shorter, arising very near and under each other, usually curved, 

 irregularly silver-dotted (or greenish), very slender at base. 



The variations are evidently so numerous, and the specimens for 

 comparison thus far so few, that I prefer to notice it as a variety. 



Embletonia remigata.* 



Plate XVI. Figs. 214-217. 



Animal long:, slender, uniform pale yellow ; head large, emarginate, angles 

 dilated into triangular lobes with blunt points ; tentacles long, linear ; branchite 

 removed from head, arranged on each side in distant tufts, the last pair at ex- 

 tremity of tail. 



Animal uniform pale yellow, the branchia; wax-yellow, being dot- 

 ted with greenish and having a pale olive centre. Body long, slen- 

 der, cylindrical anteriorly, gradually contracted backwards. Head 

 large, emarginate in front, the angles dilated into triangular lobes, 

 with concave sides and blunt point. Tentacles long and linear, 

 gently curved. Branchige long, very slightly dilated, arranged on 

 each side in distant tufts, the first one placed at about the anterior 

 fourth of the animal and containing three papillae originating close 

 beneath each other, the lowest being much the shortest. The num- 

 ber in large specimens is 3, 3, 3, 2, 2, 2, 1, the last pair being at 

 the extremity of the tail causes it to appear bifurcate. Foot as 



* Sec second note to p. 243. 



