504: COLLECTIONS FROM THE WESTERN INDIAN OCEAN. 



rust-brown colour, being spotted and more irregularly stained with 

 the same tint below. The two Amirante specimens have the same 

 style of markings, but of a greenish colour or green and brown 

 mingled together. Both of these and one of the specimens in the 

 Cumingian collection have a distinct zone composed of irregular 

 dark-coloured spots round the middle of the base. 



87. Turbo tursicus. (Plate XLIV. figs. U-U 2 .) 



Reeve, Conch. Icon. sp. 60 ; PJdUppi, Conch.-Cab. ed. 2, p. 83, pi. 19. 

 fig. 5. 



Daros Island ; Philippine Islands ( Cuming). 



This beautiful species is well characterized by its style of painting. 

 It is whitish with broad scarlet rays, particularly distinct on the 

 sloping upper surfaces of the whorls ; these are sometimes edged 

 with black posteriorly, and the suture is more or less stained with 

 that colour. The lower part of the body-whorl is for the most part 

 scarlet with a few narrow white streaks (sometimes black-spotted) 

 radialing from the umbilical region. The operculum is white, thick, 

 convex, and granose externally. 



88. Turbo (Marmorostoma) coronatus. 



Turbo coronatus, Gmdin, PMUppi. Conch.-Cab. ed. 2, p. 23, pi. 0. figs. 

 11-13. 



Zanzibar. 



This species has also been recorded from the Eed Sea, the 

 Seychelles, Madagascar, Natal, Malacca, Cochin China, and the 

 Moluccas. 



89. Phasianeila sethiopica, Philippi. 

 Bird Island, Sevchelles, on the beach. 



90. Trochus (Gibbula) ? amirantiuni. (Plate XLIV. figs. V.-V.) 



Shell small, subglobose, perforate, spirally finely lirate and sulcate, 

 white, the lira? being interruptedly pink. Whorls 4-5, convex, 

 rapidly increasing; last whorl rounded at the periphery, lirate 

 throughout, the lira? being rather narrower than the intervening 

 grooves and crossed by the lines of growth. Aperture circular, 

 occupying more than half the total height of the shell. Columella 

 arcuate, white, covered with a callus, which is considerably reflexed 

 especially at the lower part. Height 4 millim., greatest diameter 

 4 -j millim. 



Etoile Island, Amirantes, in 13 fms. 



The distinguishing feature of this little species is the reflexed 

 character of the columella. I have not the operculum, and conse- 

 quently am in doubt respecting the true generic position. 



