25 
Rissoina hanleyi Schwartz. 
North Island: 5, 1 sp., h. 5.3. — 7, 1 shell, h. 6.5. 
Rissoina emavginata H u 11 o n. 
North Island: 16, I sh., h. 2.5. 
Rissoina chathamensis Hutton {=rugulosa Hutton). 
North Island: Ild, many sps., h. 6.2. — 19, many sps., h. 7. 
Eatoniella (Rissoina) cuvieviana (Suter). 
North Island: 3, some very small sps., whorls convex, very 
indistinct spiral sculpture, shell rimate, colour ashy as in R.fuscozona. 
Eatoniella (Rissoina) fuscozona (S u t e r). 
North Island: 3, many small sps. 
Eatoniella (Rissoina) limbata (Hutton). 
North Island: 6, many sps, h. 2.4. 
Eatoniella (Rissoina) olivacea (Hutton). 
North Island: 3, (var. lutea Suter), numerous small sps. — 
9, (var. annulata Hutton), many small sps. — Auckland Island: 
37, many sps., h. 3. — 40, many sps., h. 3. 
Fam. Hydrobiidae. 
Potamopyrgus badia (Gould). 
North Island: Lake Takapuna, Auckland, 23/12 1914, many 
sps., h. 6. 
Potamopyrgus corolla (Gould). 
North Island: Lake Takapuna, Auckland, 23/12 1914, many 
sps., h. 4. 
Potamopyrgus spelaeus (Fra u e n fe 1 d). 
North Island: Moko Hinau Isl., Hauraki Gulf, brack water pool, 
# 
30 12 1914, many sps., h. 2.3 mm (war. pupoides Hutton). 
