OMISSIONS. 
Collaria, Gould. C. B. Ad., Panama Shells. Reeve, pl. 25, 
t. E69: Panama, 
Cinctella, Gould. 
Coturnix, Dkr. 
Scitula, A. Ad. Rec. Moll., vol. 1, p. 119. 
Ravida, A. Ad., with ribs almost obsolete. I have no doubt 
that this passes into smooth forms of N. levigata, Marr. 
Cingenda, Marr. 
This variety has a short body-whorl and a long spire, sutures 
mostly canaliculate, ash-grey with two darker bands, 
strongly ribbed and cross-grooved, aperture resembling the 
N. nitidula, Linn., lip sharply spined. 
Another variety is similar in form to the last, but is of a pale 
buff colour, with two reddish-brown bands. Japan. 
Resembling the variety described by Smith as a form of N. 
sequijorensis, A. Ad., sutures only slightly canaliculate. 
Intermediate between the last and N. nitidula, Linn., as 
figured in Reeve, pl. 3, f. 18. This shell is of a much 
coarser texture, and has stronger ribs than those-described 
above. The lip is finely but sharply denticulate, as in N. 
sequijorensis, A. Ad. These varieties are all about the 
size of the N. scalaris, A. Ad. 
Shell elongately-conical, narrow, white or pale buff, palely 
two-banded, ribs very irregular as well as the cross-grooves, 
sutures depressed, beaded, lip denticulated, varices none. 
I believe that this variety is the N. varicifera, A. Ad., 
without the varices. 
Marginulata, Lam., passing into the variety at No. 1454. 
small forms passing into the variety N. gemmulifera, A. Ad. 
with the beads at the sutures divided by a groove-line as 
in N. candens, Hinds. 
Arcularia, Linn., with the beads at the sutures divided by a 
groove-line as in N. candens, Hinds. 
Variegata, A. Ad., with the beads at the sutures divided by a 
groove-line as in N. candens, Hinds. 
Splendidula, Dkr., passing into the N. nivosa, Marr. 
Keen, Marr., passes into the N. gemmulifera, A. Ad. 
Conferta, Martens, var. recediva. Cape de Verds. 
Teretiuscula, A. Ad. P.Z.S., p. 108. Reeve, pl. 26, f. 104. 
Formosa and S, Africa. 
A small shell resembling the N. abyssinica, Marr., but having 
the callous extended over the front of the shell ; is from 
the Mauritius, G. H. Ponsonby, Esq., London. 
Marginulata, Lam. var., columella strongly plicate. 
passing into N, sequijorensis, A. Ad,” 
