276 SIR c. ELIOT ON NUDiBRAisrcHs [Nov. 29, 



liut wider anteriorly than posteriorly and visible fi-om the under 

 side of the mantle. Rhinophores black with white tips. Foot 

 broad, grey. Branchiae six. Only one specimen. 



(3) Brownish, with a red line much as in the last variety, but 

 occasionally broken and accompanied by red spots at the sides. 

 In the centre of the back are some clusters of whitish spots, and 

 there is a red band round the foot. The genital paj)illa is yellow 

 and conspicuous. Branchiae six. The foot is naiTOW, pointed at 

 l)otli ends, and grooved anteriorly. No tentacles are visible. 

 Only one specimen. Length 24*5 mm., breadth 8'5, height 5. 



(4) The commonest variety of all is of a greenish black, of 

 varying intensity, with white spots. A. & H.'s figure No. 13 

 gives a good idea of an average specimen. The animals are about 

 30 mm. long and 10 broad, and somewhat globular, though, like 

 most Doridopsids, they can alter their shape. The branchiae vary 

 from 6 to 12 in numlDer and are usually ample and flufiy. As a 

 rule, the foot is plainly grooved, and the small flattish tentacles 

 are distinct. In coloration there are many subvarieties. Generally 

 there are both clusters of small white spots and scattered larger 

 white spots. In the specimens where the pattern is most deve- 

 loped the clusters are arranged in two symmetrical lines down 

 the back, and the scattered spots are more numerous round the 

 margin, wdiere they tend to form a border. Irregular black 

 blotches may be present or absent. But in some specimens the 

 markings are much reduced, and in one there is only a single 

 white spot. 



(5) A variety with raised tubercular spots is fairly common. 

 The specimen which shows this feature best is flat and elongate. 

 Down the centre of the back is an elaborate pattern consisting of 

 clusters of white spots in two rows and scattered white spots 

 betw^een them, and round the mantle-margin is a ring of elongate 

 white spots forming an interrupted border. The spots, especially 

 those near the edge of the mantle, are distinctly raised and 

 tuberculai'. The branchife are fully exposed, 10 in number, and 

 somewhat stifl' and meagre. The anterior margin of the foot is 

 grooved and the tentacles are distinct. If this specimen were 

 isolated, I should certainly regard it as specifically distinct, but a 

 number of intermediate forms seem to show that it passes imper- 

 ceptibly into variety 4, as regards both the tubercular spots and 

 the branchiae, 



(6) I have once found a specimen of a uniform greyish white, 

 with no markings and six branchiae. 



I am indebted to Mr. F. W. Townsend, of the Indo-Eiu-opean 

 Telegraph Service, for two specimens from Karachi, which may be 

 referable to this species. According to his notes and a rough 

 pencil-sketch, the animal was much broader behind than before, 

 of a very deep purple, mth a bright crimson line round the 

 undulated mantle-edge. The branchia? wei'e the same colour as 

 the body and fern-like. 



The two preserved specimens retain the coloration fairly well 



