2'2 NAT1CA. 



bands sometimes plain orange-fawn, or indistinctly or less dis- 

 tinctly marked with the zigzag lines. Length, 1 inch. 



Philippines, So. Australia, N. Caledonia. 



N. elegan* and N. euzona, Reclnz, and N. decora, Phil., are 

 synonyms. 

 N. ZELANDICA, Quoy. PI. 4, fig. 70. 



Smooth, umbilicus with a central white entering callus ; yel- 

 lowish fawn-colored, with live white bands painted with chestnut- 

 colored arrow-headed markings, and a similarly colored wider 

 sutural band. Length, 22 mill. 



New Zealand. 

 N. CATENATA, Pliilippi. PI. 4, figs. 71-73. 



Wrinkled-plicate around the suture, umbilicus large, with a 

 central entering callus, below which it is wide but shallow, whorls 

 more obliquely flattened than in the preceding species, brown 

 fawn-color, white around the base, with three prominent narrow 

 white bands painted with sagittate chestnut markings; an indis- 

 tinct additional band often appearing between the second and 

 third ; interior violaceous white. Length, 18 mill. 



Panama to Cape St. Lucas, L. Gal. 



Allied to N. Zelandica on the one side and to N. marochiensis 

 on the other. Reeve and Sowerby have confounded it with the 

 latter and made it a Mediterranean species ; Reeve's figure 92 a, 

 however, represents the species correctly. N. depressa, Gray, 

 = N. Grayi, Phil. (fig. 73), is a synonym. Gray's name was 

 preoccupied by Sowerby for a fossil species. 



X. MAROCHIENSIS. Gmelin. PI. 5, figs. 74-96; PI. 7, fig. 36; PI. 



8, fig. 49. 



Slightly plicate at the suture, umbilicus largely filled by an 

 entering white callus ; color variable, grayish, yellowish gray, 

 yellowish brown, or reddish brown, with about four bands of 

 arrow-head markings, often running together or more or less 

 obscured. Length, -75-1-5 inches. 



W. Africa, W. Indies, Panama to Mazat/d)/, Society 



and Philippine Island*. Australia, etc. 



An exceedingly variable species, with very extended distribu- 

 tion. It is not the N. marochiensis, of Lamarck, which is 

 Mediterranean, where the present species does not occur. It is 



