400 Annals of the South African Museum. 



I cannot see that anything is gained by giving it even a varietal 

 name for it is certainly so close to the northern form that from the 

 zoogeographical point of view it is practically identical. The PIETER 

 FAURE specimen was apparently about 44 mm. long, 40 mm. wide 

 and 20 mm. high. 



P.F. 15143. Table Mountain, E. by S. '; 2 S., 25 miles, 190 fms. 

 Gn. s. and spks. 1 specimen; adult, crushed. 



SCHIZ ASTER EDWARDSI. 



Cotteau, 1889. Bull. Soc. Zool. France, vol. 14, p. 341. 1889, Compte- 

 Rendu Cong. Int. Zool., p. 286; pis. Ill, figs. 7-12: IV, figs. 1-12. 



Although the single Schizaster taken by the PIETER FAURE was 

 found on the Natal coast, and hence ought to belong to the Indo- 

 Pacific species, it seems to be unquestionably identical with Cotteau's 

 specimens from Cape Palmas, Liberia. Placed side by side with a 

 specimen of lacunosus of the same size (28 mm. long, 24 mm. wide, 

 20 mm. high) from Japan, the differences are obvious, particularly 

 in the width of petal III and the shortness and great divergence of 

 the posterior petals. In my key to the species of Schizaster (1917, 

 Mem. M. C. Z., vol. 40, p. 193), I have used the term "petal-length" 

 without definition and hence in an ambiguous way : it refers to the 

 length of the antero-lateral petals, not to the posterioir pair. It may 

 also be mentioned in passing that lacunosus is somewhat variable in 

 the character under consideration and specimens with petals I and V 

 as divergent as in edwardsi will perhaps be found. A careful 



search failed to reveal any pedicellariae on the PIETER FAURE spe- 

 cimen of edwardsi but the specimen is badly damaged and most of 

 the oral surface back of the labium is missing. 



P.F. 11430. Off Tugela River, Natal, 12-14 fms. M. 1 specimen; 

 small adult; damaged. 



SPATANGIDAE. 



This large and cosmopolitan family is well-represented in South 

 Africa, although it is evident that none of its representatives are very 

 common. Several species are identical with or at least very nearly 

 allied to European forms. Tw'o of these are recognizable as distinct 

 and are here treated as endemic species. But the only really distinc- 

 tive spatangoid is the one here made the type of a new genus, to 

 which I have given the name Spatayobrissus. The seven species 



