932 SCIENTIFIC RESULTS OF THE 
Even this species might perhaps be merely a variety of the former ; 
still it is of a quite different color and the back much more coarsely 
granulated. 
4 Adalaria albopapillosa (Dall), Pl. IX, fig. 16; Pl. X, fig. 9-11. 
Alderia (? ?) albopapillosa, Dall, Amer. Journ. of Conch., vii, 2, 1872, 
p- 137. 
Color pallide flavescens, papillis dorsalibus niveis. 
Dentes laterales (magni) hamo basi denticulato. 
Habitat. Oceanum Pacificum septentrion. (Sitka). 
Of this curious animal Dall caught three specimens [in company 
with the Doris (Archidoris) Montereyensis and the Aolidia (Her- 
missenda) opalescens |, in July, 1865, on algw, at the depth of six 
fathoms, at Sitka (Alaska). 
According to the drawings of Dall, the color of the living animal is 
very pale yellow,! the back all over covered with chalk-white papille ; 
the length was 3, the breadth 2 lines. ‘The three original specimens 
preserved in spirits were of a length of 5.5 to 7.0 mm., of a greatest 
breadth of 4.0 to 4.5 mm., and a height of 2.75 mm. ‘The color was 
uniformly translucent grayish and yellowish-whitish. The form of the 
animal was oval, the mantle a little larger than and hiding the rest of 
the body. The back convex, covered all over with a multitude of 
cylindrical or fusiform, relatively rather large papille, reaching to the 
height of a full millimetre, and with some few small ones spread 
between them. The rhinophor-openings at their usual place, having, 
as usual (with retracted organs), thin margins; before them always 
two larger papillae, behind them a little naked space. The club of 
the (yellowish) rhinophoria with about twenty-five leaves. The gill 
rather small; the branchial leaves (yellowish), as usual, set in horse- 
shoe form, lower or at least not higher than the dorsal ‘papiuls, in 
number, ten. to twelve; the anal papilla rather low, with one of the 
ordinary papille before and one behind it; the space between the 
1 ¢¢Of an opaque white, the remainder of the animal, except the eyes, 
being translucent yellowish.’’—Dat.u. 
2 Dall did not detect the retracted rhinophoria (‘‘tentacles none’’) ; the 
‘“‘black eyes sessile on the anterior surface of the body, near the mantle 
margin,’’ did not exist in the figure, but in one individual two black sand- 
particles were lying there. The true eyes of the animal could not be de- 
tected through the skin, and were lying more backwards. 
