SIR C. ELIOT: ON DORIDIID®, 335 
Doxipium RETIcULATUM, n.sp. (Pl. XIII, Fig. 1.) 
One specimen from near Wasin Island, E. Africa. The form of 
the living animal is somewhat elongate. The foot and the sides are 
of a dull greenish drab, covered by a network of dark-brown round 
meshes, which become black at the edges of the parapodia. The 
posterior processes and the front of the foot are edged with black. 
About the middle of the edge of the epipodia are three large dull 
blue spots. The network is found also on the two dorsal shields, 
where it is very fine and close. The general colour is lighter above 
than below, and the central parts of the anterior shield are of a light 
pale yellow. 
‘he alcoholic specimen is 12mm. long and 5°5 mm. broad. The 
epipodia are narrow and little developed. The same is the case with 
the margins of the dorsal shields; the head-shield has no flap behind, 
and the hind shield is merely an area with hardly raised edges. The 
posterior ‘processes form a sort of disk. The left one is much the 
larger and broader. 
The head-shield is pointed anteriorly, with somewhat indistinct 
lamellations under the edge. There are no lumps bearing sensory 
organs about the mouth. The pharynx is of a moderate size, being 
about 1:5mm. broad. The shell is strong and calcareous, but almost 
transparent. The spire is solute, and apparently no part of the 
structure is membranous. 
It is possible that this specimen may be identical with D. guttatum, 
v. Martens, or D. Gigliolit, Tapp.-Can., but the descriptions of those 
species are too brief to admit of a certain identification, and I have 
therefore thought it safer to create a new species. 
Cuetrponura.—Only the following species have been sufficiently 
examined for their identity to be certain :— 
1. C. hirundinina (Quoy & Gaimard). Pacific. 
2. C. varians, Eliot. East Africa. 
3. C. Philinopsis, Eliot. East Africa. 
4. C. plebeia, Bergh. Pacific. 
CHELIDONURA VARIANS, D.Sp. 
Five specimens from Chuaka, east coast of Zanzibar. The colour of 
the living animal is jet black, with brilliant blue edges to the para- 
podia, dorsal shields, and posterior processes. This blue line is, 
however, broken in places, and there are some sporadic blue spots, as 
well as a blue line down the centre of the head-shield. The parts 
hidden by the parapodia are somewhat lighter than the rest. The 
length of the alcoholic specimens is about 30 mm., and the breadth 
rather more than 10mm. The front shield has a long tapering flap, 
and its total length is about 18mm. Its shape varies somewhat. In 
three of the five specimens it forms a rough isosceles triangle. In one 
the corners of the anterior margin are produced into tentacle-like 
expansions, and in another the anterior third of the shield is sharply 
distinguished from the remaining portion by being 4mm. broader, but 
at the same time this broad portion is too large to be described as 
forming tentacles or rhinophores. The posterior processes are between 
