37 195 



and in those of the brim only as a short wedge penetrating from the edge. According to 

 what is stated above, upon the whole 20 transverse stripes shone through all around on 

 the lower side of the brim. The rhinophores were black, the foot yellow. 



The animal was not more exactly examined. The speciflc determination seemed 

 to be sure enough. 



Of this species were further taken 3 specimens of a respective length of 13, 14, 

 and 16 mm , on March 9 th , 1900, on coral blocks at the north end of Koh-Chang; these 

 specimens approached nearer to the typical specimen by being provided with a velvet black 

 colour in the figures of the dorsal side. 



2. Phyllidiella pustulosa (Cuv.). 



Phyllidia pustulosa, Cuv. Ann. du Mus. V. p. 268. pi. XVIII A, fig. 8. 

 Phyllidiella pustulosa, Bgh. I.e. 1869. p 455—485; 510—512. Tab. XX— XXIV A. 



— , R. Bergh, malacol. Unters. Heft X. 1876. p. 382—383. Taf. XXV, Fig. 4, 5. - 

 Heft. XVII. 1890. p. 933. 



One specimen of this form of a length of 2 cm was taken together with the above 

 mentioned specimens of Ph. nobilis. 



