396 SIR C. ELIOT ON NUDTBRANCHS [Mar. I, 



round the mantle. The foot is of a hght violet- blue ; the branchiae 

 orange with deep violet tips ; the rhinophores uniform deep violet. 

 The animals are sluggish and not very sensitive to touch. 



The buccal parts and other characters are as described by Bergh. 

 One specimen has six branchiae, the other eight, of which one was 

 posterior to the others and very small. 



12. Ohromodoris hilaris B., var. (? —lineata Soul.) 

 [S. R. xvii. pp. 935-937.] 



Nine specimens from Tundaiia, Pemba, found on a sandy shore. 



The description of the living animals is as follows : — " Creamy 

 white. Foot and mantle edged with violet. On the back four 

 undefined brown lines with three violet lines between. Foot 

 pi"ojects behind mantle. Gills and rhinophores vermilion. About 

 1| inches long." 



The preserved specimens are longish and not very stoutly built. 

 The measurements of the largest are : length 25 mm., breadth 

 10 mm., and height 9 mm. The colour is the ordinary alcoholic 

 yellow ; on the back are traces of four brownish and three white 

 lines, the latter representing the violet of the living animal. Some, 

 but not all, of the specimens appear to have a similar white line 

 on the sides of the body between the mantle and the foot. The 

 branchial apertui-e is very small ; the branchiae themselves not 

 very small and 10-12 in number. The foot is rounded in front 

 and slightly grooved. The tentacles are distinct. The mantle- 

 edge is of very varying shape, sometimes fairly wide and thin, 

 sometimes merely a thick ridge. 



The labial araiature and radula ai-e much as represented in 

 Bergh's plates. The former is a grey ring composed of mace-like 

 elements. The latter is small and transparent. Most of the 

 teeth are bifid, with four or five accessory denticles below the two 

 prongs. The innermost have one or two denticles on the inner 

 side. The rhachidian thickenings are small and not very 

 distinct. 



Bergh's specimen was in life " hell ocker-gelb " with four bluish- 

 black lines on the back, but on the whole the colour and markings 

 are sufficiently similar to justify us in regai-ding the present 

 specimens as merely varieties. 



13. Ohromodoris lineata Soul. (? = Chr. hilaris B.) (Plate 

 XXIV. fig. 7.) 



One specimen from the East Coast of Zanzibar. 



The notes on the living animal are as follows : — " Cream- 

 coloured. Gills and rhinophores vermilion. There wei-e bright 

 violet lines on the cream-yellow ground, bordering the foot and 

 mantle : two along the sides of the body and five along the back. 

 The two outside ones encircled the rhinophore-pits and joined in 

 front ; the median encircled the gill-pocket." 



The alcoholic specimen is yellow and the violet lines have 

 become white. It is high and stout, the dimensions being — length 



