3. Doris tuberculata Cuv.
(Pt. 6, Fam. 1, PI. 3.)
.4. D. flammea A. & H.
(Pt. 1, Fam. 1, PI. 4.)
In A. and H.’s preparation of the radula the teeth have long bases, and
are stouter and more erect than in D. tuberculata.
5. D. testudinaria Risso, but redescribed by A. & H.
= D. stellifera von J hering.
(Pt. 8, PI. I , figs. 5—9.)
[D. nobilis Lovén (MS,) is regarded by Odhner (1, p. 20) as a separate species
distinguished from D. tuberculata by having three longitudinal series of larger tubercles
down the centre of the back. Thé colour is light reddish, becoming yellow near the
mantle-margin. It is recorded from Scandinavian waters.]
Genus 2. Geitodoris B ergh.
See-Bergh 50, pp. 162—166.
Flattish, back granulate. Tentacles conical. Branchiaa tripinnate. A labial armature
of small rods is present, and the teeth of the radula are of two kinds: the ten or
fifteen which are nearer to the rhachis in each row are of the ordinary hamate shape, but
the outer teeth are extremely thin and crowded together in bundles.
1. G. planata (A. & H.).
(Pt. 3, Fam. 1, PI. 8.)
See above and Eliot 1, pp. 340—341, and 344—345 ; also Eliot in Proc.
Malac: Soc. of London, 1904, vol. vi, pp. 180—181.
Genus 3. Aporodoris von J hering.
See von Jhering, Zur Kenntn. d. Nudibr. d. brasil. Kiiste in Malacolog. Jahrb., xiii, 1886
pp. 238—239.
This somewhat uncertain genus was created by von Jhering for Alder and Hancock’s
Doris millegrana, which he identified with specimens found by himself in the Mediterranean.
His diagnosis of the genus is as follows
Corpus sat molle subdepressum, supra granulatum et minute tuberculatum. Aper-
turse rhinophoriales margine crenulato. Tentacula digitiformia. Podarium margine
anteriore bilabiatum, labio superiore profunde fisso. Branchia retractilia. Armatura
labialis nulla. Radula rhachide nuda, pleuris multidentatis, hamatis, externis pectinifor-
mibus. Penis inermis.
Von Jhering discusses (l. c.) five genera, Thordisa, Bgh., Halgerda Bgh., Dictyodoiis
Bgh., Etidoris von Jher., and Aporodoris von Jher., to which might be added Diaul/ula
Bgh., nearly related to Thordisa, if not identical with it. It is fairly certain that some of
these genera are superfluous, and as Aporodoris is the latest in date the name is not likely
to be maintained, but it is here kept provisionally as it is impossible at present to say
with which genera either of von Jhering or of earlier authors it will be amalgamated.
]. Aporodoris millegrana (A. & H.).
Genus 4. Jorunna Bergh.
See Bergli 16, p. 346; 18, pp. 195—201; 40, pp. 683—685; 46, pp. 113—128; Garstang,
Notes on Jonmna Johnstoni in Conchologist, vol. ii, pt. 3, 1892.
Soft and minutely granulate. Tentacles distinct, finger-shaped. Branchiae
tripinnate. Foot broad; its anterior margin is deeply grooved and the upper portion is
divided in the middle so as to form two flaps or lappets which are ampler than in most
genera. The branchiae form a symmetrical cup. No labial armature. Most of the teeth
are simply hamate, but a few (three to five) of the outermost are long and thin. The
vestibulum genitale contains four openings: (1) S , (2) for the bursa copulatrix, (3) for
the mucus gland or uterus, (4) for a special gland armed with a spine.
Jonmna is probably not distinct from Kentrodoris Bergh (see Bergh 35, pp. 415—442 ;
43, 921—924), which has the same structure of the foot, but has (a) a long spine on the
verge, (b) a slightly different radula, inasmuch as the outermost teeth are not markedly
longer than the others, as in Jorunna, and the innermost sometimes have an accessory
denticle. Kentrodoris and Jorunna were both created by Bergh in the same year, but it
would appear that Kentrodoris has priority. I do not, however, propose to supersede the
name Jorunna, which has been generally accepted for the European forms, until the
identity has been shown to be certain.
1. J. johnstoni (A. & H.).
(Pt. 1, Fam. 1, PI. 5.)
Genus 5. Rostanga Bergh.
See Bergh 16, p. 353; 46, pp. 99—107.
Back covered with hispid papillae. Branchise simply pinnate and rather numerous
(nine to ten). A labial armature of rods. The radula contains teeth of two kinds: those
nearer to the centre are hamate, fairly stout, and sometimes bicuspid or denticulate;
those nearer to the end of the row are long and thin, usually bifid or provided with a few
long'denticles.
1. R. coccinea (Forbes).
(Pt. 4, Fam. 1, PI. 7.)