OLIVA. 83 



numerous ; yellowish brown, with pale chestnut zigzag markings 



and reticulations, and two bands of interrupted dark chestnut 



hieroglyphic figui-es ; bluish white within the aperture. 



Length, 1-5-2 inches. 



China, Australia. 



0. FUSiFORMis, Lam. PI. 30, figs. 86-89 ; PI. 34, fig. 56. 



Shell thick, oval, swollen posteriori}^, the spire prominent ; 

 white, with longitudinal zigzag chestnut figures, sometimes two 

 banded, and sometimes the chestnut-color nearly covers the 

 shell by the coalescence of the markings ; white within the 



aperture. Length, l"5-2*25 inches. 



West Indies. 



With this are to be united 0. obesina, Duel., 0. Aldi7iia, 

 Duclos (fig. 88), 0. oniaca, Duel. (fig. 87), 0. mercatoria , Marr. 

 (fig. 56) — at least in part (one of his figures resembles 0. reti- 

 cularis more closely), 0. bullata^ Marr. (fig. 89), and 0. reclusa, 

 Marr., the last two not fully grown. 



O. RETICULARIS, Lam. PI. 30, figs. 90-95; PL 31, figs. 96-4; 

 PI. 34, fig. b1. 

 White, with pink or chestnut zigzag longitudinal markings, 

 and fasciculations of the same color around the suture ; some- 

 times there are faint bands, and occasionally the whole surface 

 is more or less covered with chestnut ; aperture white. 



Length, 1 •5-2*25 inches. 



Florida, West Indies. 



Among the synonyms may be cited 0. ustulata, Lam. (fig. 92), 



0. tisiphona^ Duclos (figs. 93, 57), 0. memnojiia, Duel. (fig. 94), 



0. Sowerhyi.1 Marrat (fig. 95), O.figura, Marr. (fig. 96), 0. Bewleyi. 



Marr. (fig. 97), 0. Jamaicensis, Marr. (fig. 98), 0. hepatica, Marr. 



(not Lam.)= 0. bifasciata,Weinksiuff (fig. 99), O.formosa, Marr. 



(fig. 100), 0. nivosa, Marr. (fig. 1). The white variety of the last 



is equivalent to 0. olorinella^ Duclos (fig. 2), whichWeinkaufF has 



erroneously made a synonj-m of 0. ispidula, Linn. 0. brunnea, 



Marrat (fig. 3), is said to come from Borneo, but I have before 



me undoubted West Indian specimens precisely like it ; 0. oriola. 



Duel. (fig. 4), is nearly equivalent to the last. 



O. LiTTERATA, Lam. PI. 31, figs. 5-7. 



Shell gradually attenuated at each end, with produced spire ; 



