28 ART. 1. — CHARLES ELIOT : 



of which there are 50-55 teeth or either side of the rhachis. 

 There is no central tooth bnt the rhachis bears triangular thicken- 

 ings in which the apex is plain bnt the base very indistinct. 

 The first four or five laterals are broad and low in shape. The 

 one nearest the rhachis is denticulate on both sides. The follow- 

 ing teeth bear about ten denticles on the outer side only. These 

 gradually become fainter and fainter, and the last ten teeth or so 

 are quite smooth and triangular in shape. The outermost teeth 

 are not denticulate on the apex, as is usual in this genus. 



This specimen appears to be the Chr. Sibogae of Bergh 

 which, so far as it is known at present, is characterized by (a) 

 its coloration (b) a long narrow radula composed of hamate teeth 

 bearing about 10 small denticles. 



Chromodoris pallescens Bergh. 



Bergh, Journ. Mus. Gocleffroy 1874, pp. 81-82 = Chr. tumuli/era Collingwood. 

 (Plate H., fig. 8). 



Sixteen specimens from Misaki and Tsushima, accompanied 

 by a coloured drawing. They vary greatly in size, the smallest 

 being only 10 mm. long, whereas the larger are 54 mm.-50 mm. 

 long and 15 mm.-18 mm. broad. They undoubtedly belong to 

 the species described by Bergh from a single specimen 15 mm. 

 long and present only such differences as can be explained by 

 size and age. 



The drawing represents an elongate Chromodoris with a 

 narrow mantle margin and a longish tail. The dorsal surface is 

 of a greyish lemon colour and is surrounded by a double border, 

 the inner line of which is bright yellowish white and the outer 

 line orange. The tips of the rhinophores are orange and the stalks 

 white. The gills are represented as mainly white but bordered 

 with fine lines of brown or orange. In many of the preserved 

 specimens the gills are spotted. The dorsal surface and the 

 sides of the body bear a moderate number (25-30 on the back) 

 of >jlack spots or blotches, disposed in irregular lines, and some- 

 times but not always forming a border to the foot or part of the 



