1877.] | ANTHOBRANCHIATE NUDIBRANCHIATE MOLLUSCA. 249 
Doris TABULATA, sp. nov. (Plate XXVII. fig. 9.) 
Body very flat, oblong, rounded before and behind. Mantle 
widely expanded all round, the border subcrenulate and rather un- 
dulate at the extreme edge, covered above with very minute, close, 
granular tubercles, the surface being, nevertheless, smooth to the 
touch. Rhinophores small, close together, retractile into cavities 
which have the border slightly raised, denticulate and contractile. 
Branchiz 6, small, tripinnate, retractile within a cavity protected by 
six procumbent contractile lobes. Oral tentacles short and subcylin- 
drical. Foot small, very narrow, grooved in front, with the uppe: 
lamina notched. 
General colour (in spirit) light brown, with a dusky patch on the 
back and on the sole of the foot; above, on the mantle-expansion, 
are patches of brown, minute, epidermic, intergranular reticulations. 
Length (in Hedy 55 millims., breadth 35, height 7. 
Hab. f 

The mantle-spicules are numerous and close, with blunt ends ; 
some are straight, others more or less bent. 
Doris HEPATICA, sp. nov. (Plate XXVIII. fig. 9, diam. 3.) 
Body oval-oblong, rather depressed. Mantle expanded all round, 
thick and fleshy, with the border irregularly subcrenate and undu- 
lating ; smooth to the touch, covered above with minute, close, 
granular, soft, unequal, rounded tubercles. Rhinophores clavate, 
retractile into wide cavities, with the margins denticulate, although 
but little raised. Branchiz 6, tripinnate, rather short, retractile in 
a cavity with the edge raised and irregularly 6-lobed. Oral tentacles 
short, flat, subconic in outline. Foot broadest in the middle, about 
one third the width of the mantle, rounded at both ends, anteriorly 
grooved, with the upper lamina expanded and widely notched in the 
centre. 
The general tint of the spirit specimen is a dark liver-colour. 
Length (in spirit) 90 millims., breadth 5-4. 
Hab. Pacific Ocean (Riciniola). 
The mantle is well furnished with spicules, which are irregularly 
cylindrical and with rounded ends; they are of different sizes, but 
none very large. 
Doris MABILLA, sp. nov. [Bergh in sched.]. (Plate XXVIII. 
figs. 1-4.) 
Form depressed, elliptic; mantle large, thick, fleshy, gradually 
thinning to a subcrenulate edge; raised upon the upper surface into 
large, irregular, flattened pustules, which, in the larger specimens, 
become rugose upon the summit. Rhinophores with the upper half 
diagonally laminated, conical, and bent rather backwards, their pedi- 
cels long and somewhat slender; the cavities have the margins 
raised into subcrenate-edged sheaths. Branchie 6, large, tripinnate, 
spreading, set round the tubular anus in a cavity which has the mar- 
- gin divided into 6 large procumbent lobes. Oral tentacles flat and 
rather leaf-like. Foot long and narrow, truncated and transversely 
