NATICA. 45 



moderate and, with the columellar callus tinted with orange- 

 brown ; interior chestnut-colored. Length, 1-5-2 inches. 



Australia, New Zealand. 



The form is less conical, the color deeper, the umbilicus more 

 open than in N. conica. 



N. microstoma, Quoy (fig. 79), is probably a synonym, and N. 

 sordida, Swainson, certainly is. I figure a form called by Gray 

 N. sordida, var. globosa (fig. 88). 



N. LEUCOPII^A, Reeve. PL 18, figs. 82, 80. 



Differs from N.plumbea only in its more globose form, and more 

 open umbilicus ; coloring similar. Length, 1'25 inches. 



Australia. 



Probably only a variety of N. plumbea. N. Strangei, Reeve 

 (fig. 80), appears to be identical. 



N. MELASTOMA, Swainson. PI. 18, fig. 81 ; PI. 19, fig. 90 ; PI. 21, 

 fig. 8. 



Obliquely ovate, slightly concave at the suture ; olivaceous, 

 with a whitish sutural space bearing an indistinct darker band ; 

 umbilicus widely excavated, and filled up with a heavy chestnut- 

 colored callus ; interior chocolate brown. Length, 1'25 inches. 



Australia. 



Partakes of the characters of Neverita, and appears to be 

 somewhat closely related to N. Incei, Reeve, belonging to that 

 group. N. sanguinolenta, Desh. (fig. 8), is a synonym. 



N. DUNKERI, Phil. PL 21, fig. 7. 



Rather solid, smooth, yellowish gray, light-banded at the 

 suture, and with indistinct darker bands on the last whorl ; 

 umbilical region defined by an angle, umbilicus completely filled 

 by the white columellar callus. Length, 17 mill. 



Habitat unknown. 



This species is placed here because Philippi compares it with 

 N. melastoma ; I cannot see any resemblance between the two. 

 N. Dunkeri has not been recognized by subsequent authors. 



N. SOLIDA, Blainv. PL 20, fig. 98. 



Thick, smooth, fulvous or chestnut-brown, with a rather broad 

 lighter band at the suture, and another below the periphery ; 



