14 
22. — 45, 1 sp., h. 4.3 (without external shell layer, thus entirely 
nacreous, with deeper spiral striae than usually, when living on 
Macrocystis). 
Cantharidus puvpuvatus (Martyn). 
North Island: 4, 2 sps., h. 22. — 11a, 2 sps., h. 24. — South 
Island: 29, 3 small sps., h. 21.5. 
Cantharidus tenebvosus A. Adams. 
North Island: 12, 1 sp., h. 8. — South Island: 30, 1 sp., h. 
6. — Stewart Island: 31, many sps., h. 13. 
Margarella {Photinula) antipoda (Hombron &Jacquinot). 
Auckland Island: 37, 4 sps., h. 9. — Campbell Island: thrown 
on the shore, 1 small sp. 
Margarella {Photinula) decepta (I r e d a 1 e). 
Stewart Island: 36, 2 sps., d. 8.5. — Auckland Island: 37, 
many sps., d. 8, h. 7. — 40, many sps., d. 9. — Campbell Is¬ 
land: many sps., d. 8.5. 
Gibbula fulminata (Hutton). 
North Island: 2, 2 small sps. 
Gibbula micans S u t e r. 
North Island: 19, 5 sps., h. 6. — Stewart Island: 36a, 1 fragm. 
Gibbula mortenseni n. sp. 
(PI. I, fig. 3.) 
Shell globose solid, finely rimate, whorls flattened, angled above, 
obtusely rounded below, base slightly convex, suture impressed. 
Sculpture consisting of spiral ridges separated by a little narrower 
furrows, ridges beaded on the spire, smooth on the base, their 
number 5 on the penultimate whorl, 10 on the base: the 3 upper 
furrows on the penultimate whorl with a fine intercalating thread. 
Colour white with red spots on the ribs set in longitudinal series, 
spire crimson, grooves with a light greenish nacreous lustre. Pro- 
toconch smooth, white, of 1 1/2 whorls, the following 5 whorls 
