42 
Ancilla mucronata (Sowerby). 
North Island: 4, 1 sp., h. 30.5.'— 10, 2 sps., h. 15. — 13, 
2 sps., h. 30. — 16, 9 sps., h. 23. — 18, 1 small sp. — 19, 1 
sp., h. 35. — 25, many sps., h. 25. — South Island: 29, 2 sps., 
h. 15. 
Fam. Marginellidae. 
MavgineUa albescens Hutton. 
North Island: 11b, 6 sps., h. 4.4. 
MavgineUa mustelina (Angas). 
North Island: 19, 4 sps., h. 8. 
MavgineUa coma n. sp. 
(PI. I, fig. 28.) 
Shell small, solid, oval, white; spire about one third of the 
aperture. Sculpture: very fine and close longitudinal threads, lower 
half of the shell besides with fine and close revolving striae. 
Whorls 5, the 2 uppermost papilliform, smooth. Aperture narrow, 
channelled above, not widened below; columella with 4 plaits at 
equal distance from each other, the uppermost strongest; a slight 
callus above and below them on the columella. Outer lip thick, 
simple, without varix, appressed on the last whorl and not ascend- 
ing the spire. Dimensions: H. 5.4, br. 3.4 mm. — Locality: North 
Island, 2, 1 shell. 
This species is intermediate between NI. parvistriata and plica- 
tula; its shape is like that of M. pygmaea, which is however, ent- 
irely smooth. 
Cvyptospiva ficula Murdoch & Suter. 
North Island: 18, 1 sp., h. 4. 
Fam. Turridae. 
Bathytoma nodilivata (Murdoch & Suter). 
North Island: 10, 2 shells, h. 17.5. — 16, 4 shells, h. 13.3, 
br. 4.6. 
