bo 
or 
VARIETIES OF NASSA, 
Compta, A. Ad. P.Z.S., 1851. Reeve, pl. 16, f. 106. 
Cape St. Antonia, Africa. 
Purple; the colour is probably produced by acid. 
Taylor Collection. 
2 Elongated, a form of N. mucronata, A. Ad., passing into the 
narrow forms of N. glans, Linn. 
Somewhat pellucid, white, with a few scattered reddish spots, the 
upper whorls costate, the ribs continuing on to the last whorl. 
Dull grey, apex mucronate, semicostate, lined transversely, in- 
terior pale blue. 
5 Reeveana, D’k’r. Phil. Abbild., pl. 2,f. 3. This is not the 
N. sertula, A. Ad., but a form of the N. picta, Dunker. 
Picta, D’k’r., with dark brown and white interspersed over the 
shell ; it is closely allied to the N. gaudiosa, Hinds, but is 
broader than the figure in the “ Voy. Sulph.” 
With two brown bands on the last whorl. 
Sertula, A. Ad. P.Z.S., 1851, p. 107. Reeve, pl. 14, f. 89. 
Philippines, 
Intermediate between N. sertula, A. Ad., concinna, Powis, and 
concentrica, Marr. 
Concinna, Powis. Reeve, pl. 14, f. 91. 
Mustelina, Gould. Pro, Bost. Soc. Nat. Hist., vol. 7, 1860. 
Ousima. 
Zonalis, A. Ad. Reeve, pl. 14, f. 93. 
Rather strongly semicostate, passing into the following shell. 
Capensis, D’k’r. Zeit. f. Malak, 1846. Krauss’ Die Sudaf. 
Moll., 1848=pulchella, A. Ad. P.Z.S., 1851. Reeve, 
pl. 14, £. 90. Port Elizabeth. 
Beautifully mottled. Ditto. 
Similar in colour and form, but longitudinally ribbed, strongly 
transversely grooved. Port Elizabeth. 
With a dark brown central band. 
White. 
More elongated and narrow, intermediate between N. capensis 
and N. teretiuscula, A. Ad. 
Aperture shorter, last whorl a little more expanded than the 
N. teretiuscula, A. Ad. 
Beaded at the sutures ; another variety of N. teretiuscula, A. Ad. 
Dark bluish ash, costate throughout, showing an affinity with 
the N. exilis, Powis. 
