426 Annals of the Soutli African Museum. 



by the characteristic form and colour, in which there is little diver- 

 sity. It has long been known from Mozambique and there are two 

 small specimens in the present collection collected at that place in 

 Nov. 1912 by Mr. K. H. Barnard. It is a pity the colour (jiiite 

 disappears in alcohol. 



* ACTINOPYGA MAURITIANA. 



Holotliuria mauritiana Quoy and Gaimard, 1833. ASTROLABE Zool., 



vol. IV, p. 138. 



Actinopyga mauritiana W. K. Fisher, 1907. Holot. Hawaiian Is., 

 p. 648; pi. LXVII, figs. 1 Id 



This species is recorded from Mozambique by Bell but it is not 

 represented in the present collection. 



ACTINOPYGA MILIARIS. 



Holotliuria miliaris Quoy and Gaimard, 1833. ASTROLABE Zool., 



vol. IV, p. 138. 

 Actinopyga miliaris Bell, 1887. Sci. Trans. Roy. Dublin Soc. (2), 



vol. 3, p, 653. 



Although Bell pointed out many years ago (1887, Ann. Mag. Nat. 

 Hist. (5), vol. 19, p. 392 and vol. 20, p. 148) that the genus Miil- 

 leria as used for holothurians was preoccupied, few zoologists have 

 troubled to correct the error. Fisher has done so however and used 

 Actinopyga, as noted under the preceding species. It is by no means 

 clear to me that mauritiana and miliaris are really different species. 

 The former is supposed to have 25 tentacles or more but Fisher says 

 his Hawaiian specimens had 2226. On the other hand, miliaris is 

 supposed to have only 20 tentacles but of the two adults in the pre- 

 sent collection, one has 22 and one has 23. The difference in tentacle- 

 number therefore is of doubtful value. Whether the calcareous par- 

 ticles show reliable differences, and whether there are any constant 

 differences in color, habits or habitat, still remain to be demonstrated. 



Mozambique (Island). Lying free in rock-pools. Skin usually 

 with adherent sand-grains. Nov. 1912. K. H. Barnard. 



Locality unknown. 1 specimen; very young. 



