22 NATICA. 



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

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



Philippines, So. Australia, N. Caledonia. 

 N. elegana and X evzona, Reclnz, and N. decora, Phil., are 

 synon3"ms. 



X. Zelandica, Quoy. PI. 4, fig. 70. 



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

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

 colored arrow-headed markings, and a similarh' colored wider 



sutural band. Length. 22 mill. 



Nev: Zealand. 

 X. CATENATA. Philippi. 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 

 while 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. Cal. 



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

 on the other. Reeve and Sowerb}' have confounded it with the 

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

 however, represents the species correctly-. X. depressa, Gray, 

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

 preoccupied by Sowerby for a fossil species. 



X. MAROCHIENSIS, Gmclin. PI. 5, figs. 74-96 ; PL 7, fig. 3G ; PI. 

 S, 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 Ilazatlan, Society 



and Philippine Islands. 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 dogs not occur. It is 



