146 CHRYSAME. 



M. TURBEN, Reeve. PI. 42, fig. 242. 



Closely and finely longitndinally ribbed, crossed by revolving 

 impressed strise. Orange-yellow. Height, "tS inch. 



PJiilippine Islands. 



All the specimens collected by Mr. Cuming had the lower part 

 of the outer lip absorbed or worn away, as in the fig\ire. 



M. TABANULA, Lam. PI. 42, figs. 243-24Y. 



Keddish chestnut to chocolate-color ; whorls encircled b}^ ele- 

 vated keel-like ridges, varying in number, so that sometimes the 

 interstices are as wide as the ridges, on other specimens merely 

 narrow deeply engraved lines. Length, 'S-GG inch. 



Andaman Isles ; Philippines ; Polynesia. 



I unite with this species several others, the types of which 

 show some differences, but tlie series of specimens before me 

 clearly indicates their indentity. Fig. 243 is the typical taha- 

 nula: to which I add 31. pediculun, Lam, (fig. 244); M. minor, 

 Sowb. (fig. 245), and 31. rotmulilirata, Reeve (fig. 246). 31. 

 Caledonica, Petit (fig. 247), can scarcely be distinguished from 

 the short form of tahamda^ such as 31. pediculus, Lam. 



M. Hanleyi, Sowb. PI. 43, fig. 248. 



Yellowish white. Length, -b-'l inch. 



China Seas, 

 M. SoLANDRi, Reeve. PL 43, figs. 249-251. 



Light chestnut to chocolate. Length, 1-1*3 inches. 



Red Sea. 



Reeve's original specimen was probably worn and faded. The 

 relative width of ridges and grooves appears to vary as in if. 

 tahnnvla : in the type (fig. 249), the former are narrower thaii 

 the latter, whilst in Mr. Sowerb3''s specimen (fig. 250), they are 

 more nearly equal ; a dark shell of this stage is 31. Iluppellii, 

 Reeve (fig. 251) ; finally well-grown specimens have broad, some- 

 what flattened ribs = 31, pla^iilirata, Reeve. 



M. VEXiLLUM, Reeve. PI. 43, figs. 253, 254. 



Bright reddish orange, the incised lines which separate the 

 rounded, slightly raised revolving ribs, are darker— sometimes 

 chestnut-colored. Sometimes the ribs are obsolete, when the 

 grooves are scarcely marked, except by the persistent color. 



Length, 1-1-2 inches. Philippines. 



