88 LATIRUS. 



L. POLYGONUS, Gmel. PL 66, figs. 106-108 ; jjl. 67, figs. 109-114. 

 Orange-brown or whitish, with revolving bands and strigations 

 of chestnut-brown ; fulvous white within the aperture. 

 Length, 2-2'5 inches. 



Me of Ticap, Philippines : on the reefs. Cuming. 



Mascarene Isles ; Red Sea ; Central Pacific. 



Var. TESSELLATA, Kobelt. Fig. 109. 



Yar. BARCLAYI, Reeve. Fig. 110. Mauritius. 



Var. CANDELABRUM. Reeve. Fig. 114. 



Revolving ridges much sharper ; umbilicus usually more open. 



Isle of St. Elena, W. Columbia. In sandy mud, seven 



fathoms. Cuming. 



L. AMPLUSTRIS. Mart. PL 67, figs. 115, 116. 



White under a yellowish epidermis, closely and regularly 

 banded with chestnut brown ; aperture ivory white. 

 Length, 2-3 inches. 



Isle of Annaa ; on the reefs. Cuming. Ascension Isl. Pease. 



Of the same general appearance as the preceding species, but 

 much smoother, the ribs and revolving sculpture obsolete. 



L. GIBBULUS, Gmel. PL 67, fig. 117 ; pi. 68, fig. 126. 



Orange or brown, encircled by chestnut-brown bands; yellow- 

 ish pink within the aperture ; usually smooth and polished. 



Length, 2*5-3'5 inches. 



Australia. 



The colmnella is very indistinctly, sometimes not at all plaited. 

 L. CARINIFERUS, Lam. PL 67, fig. 118, 119. 



Yellowish brown, lighter on the ribs ; aperture white within. 

 Length, 2-2*5 inches. 



Indian Ocean; Viti Is. Garrett. 



L. CERATUS, Gray. PL 67, fig. 120. 



Yellowish brown, lighter on the ribs ; epidermis chestnut or 

 chocolate. Length, 2 to 3 inches. 



Galapagos Is., under stones at low water Cuming ; 



Panama; Mazatlan. 



