278 SIR c. ELIOT oisr nujdibranchs [Nov. 29, 



of its small size, it is probably immature, the difference in pattern 

 is perhaps not specific. The chief distinction is that here w» 

 have yellow ocelli with a bine centre, whereas in A. <k H.'s 

 specimens there were "lozenge-shaped areas of a rich brown 

 colour, with a few brilliant blue spots in each." 



DORIDOPSIS CLAVULATA. 



[A. & H., Notice of a Coll. of Nudibr. Molluscs made in India,. 



p.m.] 



One specimen dredged between Wasin and the mainland in 

 10 fathoms. 



The following are the notes on the living animal : — " Very like 

 B. denisoni. Probably a distinct species, but nearly related. 

 Shape as D. denisoni, but even longer. The tubercles are not so 

 large or so definite, and the back is rounded. There are two 

 small tubercles between the gills and rhinophores, and the rest of 

 the back is fairly thickly covered with smooth warts. The mantle 

 has a border formed by blotches of greenish black, white, and 

 yellowish brown. The whitish patches extend inwards, and there 

 are three others in the middle of the back. On each side are 

 three smooth irregular patches of yellowish brown, with scattered 

 slit-like marks of bright blue. Apart from these various markings, 

 the ground-colour is a dull red. The tops of the tubercles are 

 greyish, but this does not altogether hide the underlying red or 

 white. The edges of the rhinophore and gill-pockets are slightly 

 raised, and the latter is wavy. Gills 5, large, feathery, tripinnate,. 

 white, with black lines on the rhachis. Rhinophores dark brown, 

 tipped with white, not bent back. Anal papilla large, and keeps 

 Tip a motion like the beating of a heart. Foot pinkish, with a 

 yellow border, only slightly projecting behind mantle. The animal 

 is infested w4th numerous white copepoda, especially about the 

 gills." 



The alcoholic specimen is very soft and much bent. It would 

 probably be at least 25 mm. long if straightened out ; width 

 13 mm., height 12. The mantle not ample Imt reaching to the 

 ground. The rhinophore-pockets bear one or two tubercles. The 

 gill-pocket is indistinctly five-lipped and also irregularly denti- 

 culate. There ai-e indications of three or four large tubercles on 

 each side of the back twice as large as the rest, although the 

 description of the living animal does not notice them. The foot 

 is deeply notched in front, but not distinctly gi'ooved. The ten- 

 tacles are thin but distinct. The internal organs are yellow aiid 

 as usual in the genus. The mouth-gland falls into two halves^ 

 each with several lobes. 



I think that this may be identified with A. tl- H.'s D. clavtdata, 

 which may perhaps be shown by the discovery of intermediate 

 forms to be the same as D. denisoni. D. nicobarica B. appears to 

 be akin. 



