104 OMISSIONS. 
1495 Tiarula, Kien., with granular ribs, passing into the N. acuta, 
Say, 
1496 spire short, shell very broad. 
1497 narrow, spire elongated. 
1498 with grayish-brown epidermis. 
1499 splendidula, Dkr., passing into the N. nivosa, Marr. 
1500 Nodulosa, Marr., var. bright orange-yellow. Taylor Collection. 
1501 Vincta, Marr., a variety allied to the N. planicostata, A. Ad. 
1502 Nucleolus, Phil., passing into the N. ambigua, Mtg. 
15038 var. of a rufous, brown colour, banded at the sutures, 
middle and base with dark brown. 
1504 var. white. 
1505 var. lined with brown and white alternate lines. - 
1506 Ambigua, Mtg., var. whorls sharply angular. 
1507 round. 
1508 Between the large rounded varieties of the last and the N. 
pura, Marr. 
1509 Between the rotundicostata and pura, Marr. 
1510 Gemmulifera, A. Ad., var. sharply ribbed and noduled. 
1511 Jacksoniana, Quoy. and Gaim., var. broad, passing into the 
N. tiarula, Kien. 
1512 narrow and elongated. 
CORRECTIONS. 
624 for dentifera read costellifera— 
Borneo, Dr. Collingwood. 
Philippines, Cuming. 
Island of Vanikoro, Quoy. & Gaim. 
693 N. densigranata, A. Ad. Reeve, pl. 27, f. 181, is N. 
splendidula, D’kr. 
869 For sculpta, Marr., read scalpta in both cases. 
872 For N. Gibbsii read Gibbesii. 
1048 For granifera, Kien., read clathrata, Kien. 
1137 For arbiculata read orbiculata. 
Page 91, 9th line from top, for for read of. 
1176 For N. spinosa, Lam., read N. sub-spinosa, Lam. 
1221 N. incrassata, Marr., read incrassata, Ail. 
After No. 1269, place Alexandria. 
Page 94, 4th line from top, for Avaussi/ read crosscanus. 
Goi 
