230 DORIDID^. 



Doris pallida, Agassiz, Proc. Bost. Soc. Nat. Hist, iii. 191 (1849), no description.— 



Stimpson, Gr. Man. 26. 

 ? Doris fusca, O. Fabk. Fauna Groenl 344, No. 335, fig. 10 (1780). 

 Proctaporia fasca, MoRCH, Grcjenl. Cat. 78; Gronl. Blciddyr, 6 (1857). — Stimpson, 



Check Lists, 4 (1860). 

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



1, pi. 9, tigs. 1-9 (1834). — FoiuiES and Hanl. Br. Moll. iii. 5C7. 



Body elongated, elliptical, the sides parallel and the two ends 

 about equally rounded ; pale cream-color, with a dusky pear-shaped 

 spot at the central portion of the back ; above furnished with un- 

 usually large mushrooni-likc tubercles, somewhat more white and 

 opaque than the general coloration, becoming smaller, more pointed 

 and more numerous towards the margin, so that the edge from be- 

 neath is finely toothed. Tentacles long, recurved, with about ten 

 very oblique laminai and a style at the tip. Branchial plumes seven 

 or eight, retractile into separate sheaths, each ])lume broad lanceo- 

 late, simply pinnate. Foot a little narrower than the mantle. Head 

 as broad as the foot, quite short, cresceiitic. Length, about half an 

 inch ; breadth, one fourth of an inch. 



Found by Professor Agassiz at Beverly, February, 1848. Dredged 

 by Stimpson near Governor's Island, Boston Harbor, October, 1849. 



This is a well-marked species, on account of its color and large 

 tubercles, as well as its plumes. It is pretty certainly D. aspera, 

 Alder and Hancock, but if the exhibition of a colored drawing is a 

 valid claim, the name of Agassiz has precedence. It is a still fur- 

 ther question whether this is not D. fusca of Fabricius, with whose 

 figure and description it corresponds, though that species has been 

 considered as a synonyme to D. bilamcUata. 



Doris diademata. 



Plate XXI. Figs. 298, 300, 301, 302, 303, 304. 



Body oblong-oval, slightly broader anteriorly, maroon color, darkened on the 

 sides by numerous dusky points, dark gray below ; branchial plumes nine, sim- 

 ple ; head short, concentric, pointed. 



Doris diademata, Agassiz, Bost. Soc. Pr. iii. 191 (1850), no description. 



Body oblong-oval, slightly broadest in front, abruptly rounded at 

 ends, moderately convex ; color maroon brown, lightest on the disk, 

 of a darker shade on the sides produced by numerous dusky points ; 

 underneath dark gray. Tentacles emerging from a sheath, which 

 has four anterior and one posterior prominence from the margin, 

 laminated about half the length with about fifteen crowded plaits. 



