DORIS. 231 



Branchial star of nine plnmcs, simi)ly pinnate, pale at edges and 

 partially folded, about half as wide as the body, the transverse diam- 

 eter a little the longer. Foot yellow, tinted roseate, about two thirds 

 as wide as the body in front, and projecting a little behind when in 

 motion, bluntly rounded at tip and at the front, which is quite in 

 the rear of the front of the body. Head very short, crescentic, about 

 the width of the foot, pointed at sides. Length, one and a half 

 inches ; breadth, nearly an inch. 



Found in dco[» water, Boston and Beverly Harbors (^Ag-assiz^. 



Tliis is tlie largest species yet found on our shores, and is the 

 representative of D. tnberculata of Europe, if indeed it is not iden- 

 tical. But if the drawings may be relied on, the branchial plumes 

 of our animal arc much more simple, the tentacles more clubbed 

 and closely plaited, and the margins of the sheaths from which they 

 issue are not simple, as in D. luberculata. 



Doris planulata. 



Plate XX. Figs. 294, 296. 



Body broad, mantle expanded beyond the foot, covered with white minute tu- 

 bercles; white, witli a row of irregular bright-yellow spots down each side; 

 branchial plumes ten, small, pinnated. 



? Doris repandii, Alder and Hancock, in Ann. Nat. Hist. ix. 32; Brit. Nudib. Moll. 



Fam. 1, pi. 6 (1847). 

 Doris planulata, Stimpson, Mar. Invert. Gr. Manan, 26, fig. 14 (1853) ; Check Lists, 4 



(1860). 



Body broad, depressed, mantle expanded widely beyond the foot, 

 covered above with minute tul^ercles, and white with a row of irreg- 

 ular Ijriglit-yellow spots down each side just without the margin of 

 the foot. Dorsal tentacles elongated, slender ; branchiae very small, 

 consisting of aljout ten delicately pinnated plumes. Foot narrow, 

 truncated anteriorly, and extending posteriorly to the edge of the 

 mantle. Mouth very small, with a flat triangular lobe on each side. 

 Length, six tenths of an inch ; breadth, forty-five hundredths of an 

 inch. 



Found at Grand Manan, and on stones at low water, Passama- 

 quoddy Bay, in July. 



Differs but sliglitly from _D. repanda, Alder and Hancock. 



The above description is copied from Stimpson. It corresponds 

 so nearly with figure and description of D. repanda. Aid. and Ilan., 

 that I scarcely hesitate in regarding them as indicating the same 

 species. 



