GASTEROPODA. 303 
Doris sumpruosa (Gould). 
D. pregrandis, rotundato-ovata, transversim tri-constricta, ex cerasino 
purpurascens flavo-punctata, fimbria lata violacescente flavo marginata 
et cerasino submarginatd cincta: caput parvum rotundum: tentacule 
labiales explanate, laciniate ; laciniis ad duodecim, crenulatis: tenta- 
cule cervicales clavate, reflexe, rosacee: stella branchialis magna, 
plumulis numerosis trifoliatis biseriatis, foliis serratis, pedunculatis : 
pes angustus, diluté rosaceus. 
ANIMAL gigantic, broad-oval, surrounded by a broad ruffle, the body 
proper being divided above into four lobes by transverse constrictions. 
Colour bright cherry-red with purple reflections, minutely dotted 
along the back with yellow, and with a patch variegated with yellow 
blotches at each constriction ; the ruffle is mostly violaceous, with red 
reflections, pale yellow at the edge, and with a submarginal border of 
bright cherry-red. Head very small, circular, with ovate, roseate, 
lateral expansions larger than the head, sweeping forwards, with ten 
or twelve delicate crenulate lobes ; mouth large; lips circular; cervical 
tentacles reflexed, roseate, conically clubbed at the end. Branchial 
star large, with a double series of foliate plumules, twelve (?) in each 
series, and each plumule composed of three broad, deeply serrated 
leaves, seated on a stout, short pedicle. Foot narrow, pale roseate, 
darker cherry-red, blotched with yellowish on each side; ruffle beneath 
with a yellow border and bluish-red submargin. 
Length ten and a half inches; width eight and a half inches. 
Obtained at the Tonga Islands. 
This is much the largest species yet made known, and well distin- 
guished from all similar species by its labial appendages or tentacles, 
its violaceous ruffle, and its profusion of expanded plumules. In size, 
general form, and colour, it is very much like D. marginata, Quoy, 
(Voy. de l’Astrol., ii. 254, pl. 17, f. 1-5.) 
Figures 398, 398 a, dorsal and ventral views of the animal. 
