The Opisthohrancliiata of South Africa. 99 



Eang had the type of his genus Mehbe from the Cape seas. The 

 original specimens do not of course now exist, and since then no 

 Mehbe has been mentioned from this region. The figure of Eang 

 (he gives no adequate description) does not prohibit an identification 

 with tbe form here examined, that henceforth very hkely will adopt 

 the name of Eang, especially if it shall be found, when hving, rosy. 

 It seems different from the M. Bangii of the Eed Sea, and "can 

 scarcely be identified with any of the other described species. 



PLEUEOPHYLLIDIID^. 



E. Bergh, System, Z.c, pp. 1060-1064. 



The family contains the genera Pleurophyllidia (proper) of Meckel, 

 the Lingvella of Blainville, and Camarga of Bergh. 



PLEUEOPHYLLIDIA, Meckel. 



E. Bergh, System, I.e., pp. 1063-1064. — Die Opisthobranchiata d. 

 Siboga Expedition, 1905, I.e., pp. 213-215. 



A number of species is known, chiefly from the warm and from the 

 tropical seas. 



1. Pl. capensis, B. n. sp. 

 PL VIIL, figs. 23-24. 



One individual was procured about 16 miles W. of East London by 

 large trawl from a depth of 37-39 fms. 



The length of the rather contracted and hardened animal was 5 cm. 

 by a breadth of 3-3 and a height up to 2-5 ; the breadth of the dorsal 

 brim up to 1-4 cm. ; the length of the gill 1, the height of its leaves 

 4 mm., that of the lateral lamellae up to 3-5 mm., the breadth of the 

 head (tentacular shield) 2 cm. ; the breadth of the foot 2-2 cm., of its 

 brim up to 7 mm., the length of the furrow of the tail 8 mm. by a 

 breadth of 2-5. — The ground colour of the back was black, but 

 supplanted by the light yellowish longitudinal folds ; the neck with 

 the rhinophores black (with whitish point), the tentacular shield 

 black ; the gill bright-grayish, the lateral lamellae bright dirty 

 yellowish, the sides of the body grayish black, the foot nearly black, 

 the tail-furrow white. 



The form as a whole, the usual. No proper nuchal caruncula, the 

 rhinophores 5 mm. high, as usual ; the dorsal folds as usual, rather 

 regularly alternating in thickness, their number at the middle of the 



