82 Mr. H. Fulton on the 



Group of A. Adamsi. 



39. A. Adamsi, Reeve, Moll. Voy. < Samarang,' 1848, 

 p. 58, pi. xv. fig. 1 ; Con. Icon., Bui. figs. 73 A, b. 



Loc. E. Borneo. 



This extremely variable species is chiefly characterized by 

 its light substance and thin columella. The varieties appear 

 to be tolerably distinct, so that I have ventured to name 

 most of them. 



A. Adamsi, var. subunicolor, Martens, Ost-Asien, p. 357. 

 (PI. V. fig. 5.) 

 = Adamsi, Rve. (pars), Con. Icon. figs. 73 c, d. 



Loc. Banguey Island. 



Yellow ; lip, columella, and umbilical area pink ; third 

 and fourth whorls plain or ornamented with a reticulated 

 band just above the suture. 



A. Adamsi, var. articulata, Fulton. (PI. V. fig. 7.) 



Loc. Banguey Island. 



Like subunicolor, but with a reticulated colour-band com- 

 posed of square dark brown spots encircling the periphery 

 and continued at the suture of upper whorls ; ground-colour 

 may be either yellow or reddish brown. 



A. Adamsi, var. duplocincta, Fulton. (PI. V. fig. 4.) 



Loc. Banguey Island. 



Ground-colour either yellow or reddish brown, with two 

 purple-brown bands on last whorl, one above the pink umbili- 

 cal area and the other at the periphery ; lip and columella 

 pink. 



A. Adamsi, var. luteofasciata, Fulton. (PI. V. figs. 2, 2 a.) 



Loc. Banguey Island. 



Ground-colour either bluish grey or white ; last whorl 

 encircled by three yellow bands situated above and below the 

 periphery and just below the suture ; the two upper bands 

 are continued on upper whorls ; sometimes there are some 

 distant white spots or oblique white stripes at the periphery ; 

 lip, columella, and umbilical area pink. 



A. Adamsi, var. ornata, Fulton. (PI. V. fig. 14.) 



Loc. Banguey Island. 



Ground-colour either yellow or reddish brown, with a 



