
A. E. Verrill— Catalogue of Marine Mollusca. 551 
Dendronotus elegans Verrill. 
Dendronotus elegans Verrill, Amer. Journ. Sci.; Proc. U. S. Nat. Mus., iii, p. 3865, 
1880. : 
Off Cape Cod, station 330, in 26 fathoms, September 6, 1879. 
Doto formosa Verrill. 
Doto formosa Verrill, Amer. Journ. Sci., x, p. 41, pl. 3, fig. 4, July, 1875. 
I took this species at Eastport, Me., and on the coast of Nova 
Scotia, in 1861. Long Island Sound to Breton Island, N.S.! From 
low-water mark at Eastport, Me., to 50 fathoms, usually on hydroids. 
Fiona nobilis Alder and Hancock. 
Fiona nobilis Alder and Hancock,’ British Nud. Moll., AXolidee, Fam. 3, pl. 38A. 
Verrill, Amer. Journ. Sci., xxii, p. 300, 1881. 
Fiona Atlantica Bergh, Vidensk. Meddelelser naturh. Forening, Kjobenhayn, 1857, 
pp. 273-335, plates 2 and 3, figs. 1-53 (anatomy.) 
A large and handsome /%ona, apparently this species, was found in 
two instances, in large numbers, among Anatifers, on pieces of float- 
ing timber, at stations 935 and 995. 
Head very changeable in form, usually broadly rounded in front 
and laterally. Tentacles large, stout, both pairs about equal, tapering, 
acute, smooth ; the posterior ones are placed rathér far back. The 
foot is broad, posteriorly thin, lanceolate, and extends far back (12 to 
15™") beyond the end of the mantle, obtuse at the end; anterior 
angles broadly rounded. Branchiz very numerous, crowded, in a 
broad band on each side, leaving the middle of the back naked; they 
are elongated, compressed, fusiform, and have a free-edged, frilled 
membrane, along each edge of the dorsal side. 
’ General color grayish brown, orange-brown, or dull orange, cor- 
responding closely with the dark colored stems of the barnacles 
among which they were found. Body translucent white, often with 
a tint of orange on the back, and on the posterior part of the head ; 
foot milk-white; numerous irregularly branched, internal, dark 
brown ducts run between and among the branchiz, showing plainly 
through the skin; branchiwe with the nucleus yellowish brown, the 
outer sheath .and free membrane pale orange; posterior tentacles 
tinged with orange. No eyes were detected. 
Some of our specimens were kept in confinement several days and 
laid numerous clusters of eggs. These are in the form of a broad 
ribbon, spirally coiled in about one and a half turns, so as to form a 
