94 Moll. 
MOLLUSCA. 
into 16 genera, which he finds to exist in confirmation of his view, 
thus : 
SCULPTURE. 
SHELL ELONGATED. 
SHELL 
ROTUND. 
Without colu- 
With colu- 
Without colu- 
With colu- 
mellar teeth. 
mellar teeth. 
mellar teeth. 
mellar teeth. 
None, shell 
1. Eulimella 
5. Turbonilla 
9. Oceanida, 
13. Odostomia 
smooth. 
g. n. 
Longitudinal. 
2. Chemnitzia 
6. Parthenia 
10 Salassia , 
14. Elodia , 
Spiral. 
3. Aclis 
7. Jaminea 
g. n. 
11. Ondina, 
g- n. 
15. Odetta , 
Both spiral and 
4. Dunkeria 
8. Stylopsis 
g. n. 
12. Mathilda 
g. n. 
16. Noemia, 
longitudinal. 
g. n. 
[Elodia and Noemia are preoccupied; author proposes to substitute 
Elodiamea and JSfoemiamea. — it eg.] 
8 G UTIBBA NGEIA TA. 
RHIPIDOGLOSSA. 
Helicinidjl 
Eutrochatella ,'n. n., = Trochatella, Swainson, nee Lesson ; Fischer, (123) 
p. 796. 
Geophorus , sect. n. Helicina ; type, H. agglutinans , Sowerby : id. t . c. 
p. 795. 
Helicina solomonensis, sp. n., E. A. Smith, (343) p. 599, pi. xxxvi. figs. 11 
& 115, Faro, Shortland, and Treasury Is., Solomon Is. H. simulans , H. 
raiatensis , spp. nn., Society Is., Garrett (136). H. setchuanensis , H.farge- 
siana, spp. nn., China, Heude, (173) p. 98, pi. xxiv. figs. 16 & 17. H. 
gredleri , n. n., = H. mouhoti var. martensi ; Mollendorff (264). 
Heudeia , g. n. ; type, Heliqina setchuanensis , Heude; Crosse (88). 
Hydrocenidjl 
Georissa sulcata , sp. n., Quangtung, China, Mollendorff, (264) p. 372, 
pi. ix. fig. 7. 
Neritidj:. 
Nerita marmorata , Hombr. & Jacq. : N. oleagina , Reeve, identified with 
this by E. A. Smith, (343) p. 603. 
Neritina cornea, L., figured; id. t. c. p. 603, pi. xxxvii. figs. 7 & 75, hab. 
Shortland Is., Bougainville Straits, San Christoval, Amboyna and Admi¬ 
ralty Is., Guadalcanal’, San Christoval and Ysabel Is., Solomon Group 
