The Opisthobranchiata of South Africa. 



57 



The specimen, killed with cocaine and expanded but somewhat 

 hardened, had a total length of 18 mm. by a breadth of 4 and a 

 height of 3 mm. ; the frontal as well as the caudal veil projected 

 2-5 mm., the first 5 mm. broad, broader than the caudal; the 

 height of the rhinophores 2, of the gill 2*5 mm. ; the breadth of 

 the foot 3, the length of the tail 7 mm. — The animal of a 

 uniform yellowish colour, the back and the sides of the body very 

 finely punctuated with black dots. 



The form as usual, the frontal and caudal veil very pronounced, 

 the back quite even ; the anterior part of the brim of the back and 

 the caudal veil showed a series of slightly prominent bags (as seen 

 in so many Chromodorides) with contents of roundish and pear- 

 shaped elements ; the gill, far back on the back, formed of eight 

 leaves ; the brim of the back prominent ; the tentacles short, finger- 

 shaped, the tail rather long. 



The dirty whitish bulbus pharyngeus 3 mm. long. The slight 

 yellowish armature of the lip disc 0*50 mm. high by a breadth of 

 0-25, the elements (fig. 14) of a height up to 0*035 mm., with 

 somewhat thicker bent end. The rasp of the tongue slightly 

 yellowish with many rows of plates, and very many plates in the 

 series. The plates nearly colourless, of a height up to 0-035 mm., 

 the outermost measuring 0*016. They showed (figs. 15, 16) a 

 plump bifid hook, the outermost of which (fig. 17) was more 

 irregular. 



The long salivary glands white. The liver grayish, sausage- 

 shaped, 8 mm. long by a diameter of 2. The anterior genital mass 

 whitish. 



Perhaps this form represents a new species. No form of 

 Chromodoris seems to have been hitherto described from the region 

 of the Cape ; this species does not agree with any of those from 

 Zanzibar described by Eliot. 



3. Chromodoris, sp. 

 PI. VI., figs. 25-26. 



Three specimens were procured in False Bay (Eockland Point 

 bearing N. J N., 2-J- miles) by large dredge from rooky bottom with 

 many sponges in a depth of 23 fms., together with the Thordisa 

 punctulifera. 



The specimens, which were much hardened, varied in length from 

 13-17 mm. The largest was 13 mm. broad by a height of 4*5 ; the 

 height of the rhinophores 2-5, the breadth of the brim of the back 



