1877.] ANTHOBRANCHIATE NUDIBRANCHIATE MOLLUSCA. 247 
68. Doripopsis ? DIARDI. 
Doris diardi, Kel. 1. c. iv, p. 267 (1859). 
Hab. Ceylon. 
69. D.? ELISABETHINA. 
Doris elizabethina, id. l.c. p. 267. 
Hab. Ceylon. 
70. D.? martet’. 
Doris mariei, Crosse, Journ. de Conch. 3° sér. xv. p. 307, pl. 12. 
l. 
Hab. New Caledonia, Noumea. 
71. D.? RossiTERI. 
Doris rossiteri, id. l.c. p. 309, pl. 12. f. 2. 
Hab. New Caledonia, Noumea. 
72. D.? FABREI. 
Doris fabrei, id. l. c. p. 310, pl. 12. f. 3. 
Hab. New Caledonia, Nouméa. 
Descriptions of the new Species.? 
Doris CORIACEA, sp. nov. (Plate XXVII. figs. 1-4.) 
Body much depressed, elliptic. Mantle very large, leathery, the 
border widely extended all round and subcrenulate; granular above 
from the presence of numerous close, minute, rounded, subequal 
tubercles. Rhinophores clavate, with numerous laminee on the upper 
half, retractile within deep cavities, the margins of which are raised 
and denticulate at the edge. Branchiz 6, tripinnate, set round the 
long, thin, tubular anus in a cavity having a 6-lobed completely 
contractile margin. Oral tentacles short and flattened. Foot nar- 
row, with a shallow transverse groove in front, the upper lamina 
being rather enlarged and divided mesially. 
The colour of the spirit specimens is in general brownish fawn, 
sometimes darker, and occasionally nearly white. On the upper 
surface irregular patches of minute black speckles are situated epi- 
dermically between the granular tubercles. In some specimens these 
black markings are nearly wanting ; in others, they are over the whole 
1 Mr. Crosse gives no account of the oral apparatus of this or of the two 
following species. He considers that the latter may belong to Mr. Pease’s genus 
Doriopsis. 
2 It is just possible that a few of the descriptions which follow may relate 
to forms already named by other observers. For reasons more than once 
alluded to, however, it is impossible to be certain of this either way ; all that 
that can be said is, that none of the hitherto published diagnoses can be defi- 
nitely referred to any of the following animals. 
My descriptions would have been more minute had I been able to cut up 
the specimens: they belong, however, to the collection of the British Museum ; 
and I did not feel justified in making any thing like complete dissections. 
