b. Lingual spines long, slender, denticulated.
3. D. Zetlandica, A. and If. White; cloak with large, soft, conical, pointed, unequal tubercles;
dorsal tentacles linear; branchial plumes 6, bipinnate. Length inch. Appendix (1), p. i.
** Oral tentacles linear.
Lingual spines of two hinds, various: no central spine. Occasionally with a spinous
buccal collar.
4. D. millegrana, A. and If. Yellow or orange (?), cloak covered with minute, granular tubercles;
branchial plumes 6, bipinnate. Length 1J inch. Appendix (2), p. i.
5. D. J ohnstoni, A. and H. Yellowish-white or yellow, with a few minute brown spots; cloak
covered with minute, dose-set, pilose tubercles; dorsal tentades clavate; branchial plumes
15, tripinnate, forming a cup. Length lj to 2 inches. PI. 5.
6. D. planata, A and H. Very flat, variegated brown and yellowish, with very unequal, soft, warty
tubercles; dorsal tentades subclavate; branchial plumes 7, small, tnpmnate, mottled.
Length 1 inch. PI. 8.
7. D. coccinea, For. Scarlet, with a few minute black spots; cloak minutely tuberculated; dorsal tentades
broadly clavate; branchial plumes 10, small, simply pinnate, erect. Length J inch. PI. 7.
*** Oral tentacles flattened.
Lingual spines denticulated; a small central spine. A spinous buccal collar.
8. D. repanda, A. and H. Waxy white; cloak with small, rather distant, soft tubercles; a row of
sulphur-yellow or opaque white spots down each side; dorsal tentacles subclavate; branchial
plumes 5, tripinnate, small. Length 1 inch. PI. 6, and Appendix (3), p. ii.
Section 2. Branchiae simply pinnate, set separately in an open circle, non-retractile-;
without oral tentacles, their place being supplied by a veil. Lamellidoris.
Tongue narrow ; lingual spines few.
* Body not greatly depressed; cloak with mbderate-sized spicula; spawn of few coils,
cupformed.
Tongue with 2 large spines and 2 or more rudimentary ones ;* usually a quadrangular central
plate.
9. D. aspera, A. and H. White; cloak with stout, flattish, clavate tubercles; tentacles sub-conical;
branchial plumes 11, small, erect. Length inch. PI. 9, figs. 1 9.
10. D. proxima, A. and H. Orange ydlow; cloak with stout elliptical tubercles; tentacles subdavate;
branchial plumes 11. Length 3 inch. PI. 9, figs. \0 16.
11. D. moricata, MM. Yellowish-white; roundish, cloak with large, dose-set, rounded, clavate
tubercles; branchial plumes 8—10 (Lor). Length ft inch. Append*t (4), p. ii.
12. D. ulimana, Thomp. Pale-yellow, oblong; doak with rather large, unequal, depressed tubercles;
tentacles slender, linear; branchial plumes 11, beautifully white, set in asemicirde. Length
> inch. Appendix, (5) p. ii.
18. D. diaphana, A. and H. Very transparent, white; doak with equal, clavate, rather distant
tuberdes; tentacles nearly linear, stout; branchial plumes 11, yellowish, set in an open,
incomplete d rde; liver appearing through the skin very large and black. Length J inch.
PI. 10. ___________________ ________ __________________________
* To avoid repetition it may be stated here that the number of spines given in the descriptions
of the tongues has reference to a single transverse row only. The rows of spines are numerous.
34. D. ob long a, A. and H. Yellowish with.brown spots, oblong, tapering behind; cloak with conical
spiculose tubercles; tentacles subclavate; branchial plumes 7, rather close, surrounded by a
circle of large tubercles. Length 5 inch. PI. 16, figs. 4, 5.
15. D. b il am e l l a t a , Linn. Dull white, mottled and blotched with brown in a longitudinal direction,
cloak covered with large, unequal, clavate tubercles; tentacles linear; branchial plumes
20—29, small, disposed in a horse-shoe form, with the ends curved inwards; Length 5 to
I, inch. PI. 11.
** Body very flat, with large spicula, symmetrically arranged; spawn of many narrow
coils.
Tongue with 2 large broad spines and 2 rudimentary ones; no central plate.
16. D. d e p r e s sa , A. and Ft. Pale sandy-coloured, spotted with reddish-brown; very much depressed;
cloak with linear pointed papillae, transparent, shewing the spicula conspicuously; tentacles
linear; branchial plumes 11, small, set in an open circle. Length & inch. PI. 12,
figs. 1—8.
17. D. in c o n s p ic u a , A. and H. Purplish-white, with minute brown spots, not very much depressed;
cloak with small obtuse tubercles; tentacles subclavate, stout; branchial plumes 10, white,
set in an open circle. Length 5 inch. PI. 12, figs. 9—16.
18. D. p u s il l a , A. and H. Fulvous, thickly covered with dark brown spots, ovate, depressed; cloak
with numerous conical tubercles; tentacles slender, conical, white; branchial plumes 9,
pure white, obtuse, set in a rather open circle. Length inch. Plate 13, and Appendix
(6), p. iii.
19. D. s parsa, A. and H. Yellowish-white, with distant fulvous spots or blotches, depressed; cloak
with distant, roundish, rather flat tubercles; tentacles sub-conical, white blotched with
brown, with three or four tubercles surrounding the base of each; branchial plumes 9,
set in a rather open circle. Length \ inch. PI. 14.
Section 3. Branchiae united at the base, non-retractile; body convex; oral tentacles indistinct,
united into a veil. Acanthodoris, Gray.
Tongue narrow, with 2 large denticulated opines and 6 or 8 rudimentary ones: no central spine.
A spinous buccal collar, with an under rudimentary jaw.
20. D. rn o sA , MuU. White, yellow, brown, or blackish, very convex, subpellucid; doak with slender,
pointed papillse; tentades long, slightly bent, with small denticulated sheaths; branchial
plumes 7 to 9, large and spreading, forming a star in the centre. Length { to 11 inch.
PI. 15.
21. D. su bq v a d ra ta , A. and H. White, subpdludd, rather elevated; cloak smaU, subquadrangular,
scarcely covering the head and foot, set with small conical papillse; tentades subclavate, with
smooth sheaths; branchial plumes 7, large, spreading transversdy; foot large and thick.
Length 1 inch. PI. 16, figs. 1, 2, 3; and Appendix (7), p. iii.
Sub-Fam. P olycerina!. Cloak small or obsolete, generally with marginal appendages.
Genos 2. GONIODORIS, F obbes.
Cloak small, exposing the head, with a waved or scalloped margin, without appendages.
Dorsal tentacles 2, laminated, non-retractile. Oral tentacles flattened and angular. Branchial
plumes non-retractile. Fam. 1, PI. 17.