SIk C. ELIOT—REPORT ON THE NUDIBRANCHS. 99 
tipped with violet, and the rhinophores which are blood-red like the body 
are also violet-tipped.” 
(2) No locality is given. ‘“Polycerid. Limaciform with pointed tail. 
Rhinophore cups with low raised rims. Colour red-brown with bright light 
yellow opaque dots and three marks of the same: one pear-shaped in the 
middle part of the front of the mantle, and the others, more elongated, behind 
the rhinophores. Rhinophores brown like the body but with a large clear 
violet spot at the tip of each. Gills light yellow, tipped with violet ; three 
in number ; irregularly bipinnate.” 
‘The preserved specimens are much distorted and contracted into an almost 
spherical shape. No external appendages are visible except the gills, which 
are as described by Mr. Crossland. The rhinophores are completely re- 
tracted, in spite of Mr. Crossland’s remark that in the living animal there 
were ‘no proper pockets.” 
The integuments contain spicules, granulate and rather irregular in shape, 
slightly swollen at both ends but not branched. 
In the central nervous system three pairs of ganglia are visible, the division 
between the cerebral and pleural portions being distinctly marked. No trace 
of a labial armature was found. The radula consists of ten rows in one 
specimen and eleven in the other with a formula of 7.1.1.1.7. Though 
the rhachis is almost entirely hidden by the large laterals which close over 
it, it is wide and bears in the middle a row of squarish plates, somewhat thin 
and indistinct. Their anterior margin is reflexed and bifid or indistinctly 
jagged. In some cases the right side is slightly higher than the left. At 
the side of these teeth are slightly raised areas of irregular shape which are 
perhaps merely folds of skin, but might be regarded as indistinct accessory 
teeth. The laterals are large, yellowish, and of the type usual in the genus. 
They have a strong and rather rectangular terminal hook and also a strong 
wing or spur, and project into the rhachis across the median teeth. Beyond 
them are seven marginal teeth, low and colourless. The first retains 
something of the hamate shape ; the rest are mere plates. The seventh is 
sometimes absent and in a few rows there are only 5. The genitalia were 
too hardened for examination. 
The combination of shape, colour, and denticulation found in these speci- 
mens does not harmonize with any of the described species of Nembrotha. It 
is possible that the animal is a lighter coloured variety of NV. rubro-ocellata, 
Bergh (‘ Siboga *-Hxpeditie, p. 201), which is only imperfectly known, the 
radula having been lost. It seems best to create a new species characterized 
by (1) its elongated, limaciform shape ; (2) its coloration, red, yellow, and 
violet ; (3) its dentition. Angasiella edwardsii, Crosse (Journ. de Conchyl. 
1864, S5™° série, tom. iv. no. 1) is possibly a Nembrotha of similar shape, but 
is said to be covered with small spines. 
