406 A. E. Verrill on New England Nudibranchiata. 
1,4) are about equal in length to the lobes of the sheath, 
the e pedicle forming about half of the visible part; the terminal 
portion suddenly enlarges at first, becomes somewhat conical, 
and tapers to an obtuse point; it has ten or ae oblique 
plications. Front of head with numerous (abou 
thirty) sparingly branched appendages gene tte in ,,,% Ab 
two series. In the upper series there are about 7 
ten, the outer ones being largest; these eb stout 
stems with a few conical, tapering branches, mostly 
on the lower side, which are tipped with sulphur- c 
apace Below these are numerous unequal, small- 
r, and more simple appendages, about ten on each 
site part of which are forked at the end, while others 
are simple and papilliform and surround the expan- 
ded ora! disk; all are canes with yellow. The oral 
disk (figure 1, ¢ se is tranversely elliptical. The foot is 
nearly as broad as the body ("4 oo an inch), and can be adapted 
for ee by infolding the ed 
Color p ish, thickly on kled with small yellow spots, 
which ae ig ess numerous on the oral eee and 
sheaths of the tentacles. 
side above the base, even on the front pairs; 
more clavate tentacles, with longer and branched - to their 
sheaths, while the sheaths also have a large, arborescent, ge 
like branch originating | from the outer “ toward the base By 
the last ch asily be distinguish 
Both species occurred ees in the same pool. 
Doris bifida, sp. nov. 
Outline broad oval, widest anteriorly, 1 inch long by ‘5 broad, 
in _— back very convex, mantle covered with nu ie 
; prominent, p papille. Tentacles rather lo 
thickest ¢ in the middle, the outer half strongly plicated, on with 
a smooth tip, the base surrounded by small papille. 
tractile into a single cavity, united together by nie a 
‘Figure 1.—Dendronotus robustus Verrill; a, tentacle sheath, natural size; 6, 
tentacle, enlarged; ¢, oral disk and anterior part of the foot, natural size; from 
living specimen by A. E. Verrill. 
