174 SPOLIA ZEYLANIOA. 



Sub-genus Actinopyga. Bronn, 



Actinopyga serratidens, Pearson. 

 Actinopyga miliaris (Quoy & Gaimard). 

 Actinopyga lecanora (Jager). 

 Actinojnjga echinites (Jager). 

 Actinopyga rriauritiana (Quoy & Gaimard). 



Genus HOLOTHURIA. 



Sub-genus Argiodia.* Pearson. 



Argiodia maculata (Brandt). 



(PL XXVII. and PL XXVIII., fig. 92.) 



Holothuria maculata (sub-genus Microthele), Brandt 1835 (4). 

 Mulleria nobilis, Selenka 1867 (22) ; Semper 1868 (23) ; 



Theel 1886 (26). 

 Mulleria maculata, Ludwig 1881 (13), 1899 (17) ; Lampert 



1885 (10) ; Sluiter 1901 (25). 

 Actinopyga maculata, Bedford 1899 (2). 

 Actinopyga nobilis, Fisher 1907 (5). 

 Mulleria hadra, Selenka 1867 (22); Lampert 1885 (10); 



Theel 1886 (26). 



There are several specimens of this species at my disposal, 

 chiefly from Ceylon, Seychelles, Red Sea, and Durban. 



External Appearance.— This species is somewhat variable 

 in colour. Generally it has an equal amount of black and 

 light yellow, the two colours being arranged in irregular 

 patches so as to give the animal a variegated appearance. 

 Along each side of the body these blotches of light yellow and 

 black alternate, and sometimes produce a striped appearance. 

 Again, the animal may have a mottled appearance due to 

 numerous small dark brown spots on a light yellow ground. 

 The only specimen recorded from Ceylon was obtained by me 

 during an inspection of the Pearl Banks ir April, 1913, and it 



* For definition see Pearson, Spolia Zeylanioa, Vol. IX., Part 

 XXXV., p. 170 



