52 Transactions of the South African Philosophical Society. 



IS acktschnecken der Siidsee II. Journ d. Mus. Godeffroy, Heft vi. 

 1874, taf. 1, figs. 19, 20), only known by the coloured figure of 

 Graeffe. 



Genus (?). 



Doris (Gen. ?) pseudida, B. n. sp. 

 PI. VI., figs. 7-8. 



Near Table Bay (Lion's Head bearing N. 63 B., 34 miles) four 

 individuals were taken by shrimp-trawl from a depth of 154 fms. 

 on a bottom with black specks. The three individuals sent were 

 very hardened. 



Two were 15 and 23 mm. long. The third, which was dissected, 

 had a length of 33 by a breadth of 20 and a height of 14 mm., the 

 rhinophores 1 mm. high ; the brim of the back 5 mm. broad ; the 

 round gill-hole of a diameter of 3 mm., the height of the retracted 

 gill-leaves 3 mm. ; the tentacles 1 mm. long, the breadth of the foot 

 6, the length of the tail 2 mm. The animal was uniformly coloured 

 whitish ; a fine white line along the margin of the back. 



The form longish-oval, the brim of the quite smooth back not 

 narrow, overlapping the head and the tail, the rhinophores per- 

 foliate ; the gill formed of 6 tripinnate leaves, the subcentral anal 

 papilla 3 mm. high. The tentacles short, finger-shaped ; the brim 

 of the foot rather narrow. 



Calcified groups of cells and spicules seldom occurred in the skin. 



The bulbits pharyngeus 7 mm. long by a height and a breadth of 5, 

 the rasp-sheath not prominent, the lip disc clothed with a thick 

 white cuticle. The rasp of the tongue yellowish, containing 9 series 

 of plates, in the rasp sheath about 15, the total number of rows thus 

 being 24 ; the rows seemed to have about 25 plates on each side of 

 the very narrow rhachis. The plates nearly colourless, the height 

 of the 4 outermost was 0'06-0-12-0-14-0°16, rising to 0-37 mm. 

 The plates of the usual hook form (fig. 7), with hook quite even, the 

 outermost small (fig. 8). 



The white salivary glands long, their last two-thirds flattened, 

 1 mm. broad, the remaining hinder part very thin, the efferent 

 duct not short. 



The large stomach very prominent, 8 mm. long by a breadth of 

 6 ; its contents were animal matter with quantities of pointed hard 

 spicules. The intestine 2-8 cm. long by a diameter of 0*5-1 mm. 

 The yellowish white liver short, conical, 14 mm. long with a hollow 

 base (for the stomach), of 11 mm. diameter. The gall-bladder 

 45 mm. high by a diameter at its summit of 3*5. 



