204 
LAND AND FRESHWATER 
EXPLANATION OF PLATE XLVIII. 
Fig. 1, 1a, 1b, le. Alyceus chennelli, G.-A., X 7. Naga Hills. 
9 
ie 
chennelli, var. Lhota-Naga Hills. 
brahma, G.-A., X 7. Brahmakund. 
oe 
3a, 3.6, 8c. Ditto, «x 4. ws 
4,4a,4b, 4c. Alyceus gemmula, Benson, x 7. Darjiling. 
5 
PT ONOO NOC: 
pachitaensis, G.-A., X 7.  Dafla Hills. 
EXPLANATION OF PLATE XLIX. 
Fig. 1. Diplommatina exilis, W. Blf., x 12. Ava. 
2, 2a. exserta, Nev., X 12. Moulmain. 
3. —— affinis, Theobald ?, x 12. Upper Salwin valley. 
4, 4a, 40. crispata, Stol., x 12. Moulmain. 
5, ba. —-angulata, Theob. & Stol., x 12. Moulimain. 
6, 6a, 
nana, W.'T. Blf.,x l2and 7. Pegu. 
fly (GE edentula, G.-A., X 12. Moulmain. 
8, 8a earneola, Stol., X 12 and 7. Moulmain, 
9. puppensis, W.'T. Blf., x 12. Upper Burmah. 
10, 10a. —— blanfordiana, Bs.. x 7 and 12. Darjiling Hills. 
ITS Als hee —— theobaldi, n. sp., G.-A., X 12. Darjiling. 
12. — pullula, Bs., x 12. Darjiling. 
13, 134. — minima, Bedd., x 20 and 12. South India. 
EXPLANATION OF PLATE L. 
Fig. 1. Diplommatina oligopleuris, W. T. Blf. Teria Ghat. Drawn 
from life, creeping and at rest. Enlarged. 
2. Diplommatina folliculus, Pfr. Mussoorie. The shell held in the 
hand, showing manner of protrusion of the rostrum and the 
various forms the animal assumes. Enlarged. 
3.  Diplommatina insignis, G.-A., X 12. Spirit-specimen. 
4. blanfordiana, Bs, X 12. Ditto. Western Bhutan. /, 
foot; 0, operculum ; s,m, shell-muscle ; }.c, branchial sac. 
5. Diplommatina blanfordiana, Bs., ~ 20. Portion of the head 
under slight pressure, showing :-—7, radula ; 6.p, buccal plate ; 
¢, tentacle; e, eye; 0, otolith ?; m, mantle. 
5a. Ditto: portion of buccal plate, x 360. 
56. Ditto: otoliths?, x 3860. 
6.  Diplommatina insignis, G.-A.: portion of radula, x 360. 
6a. Ditto: ditto. 
6. Ditto: central and lateral teeth of radula in different positions. 
Very much enlarged. 
7. Diplommatina pachycheilus. Khasi Hills. Portion of the shell 
enlarged, showing the position of the operculum (0) and con- 
striction (¢) in the penultimate whorl, the internal parietal rib 
or lamella (7), and the columellar twist or tooth (7). 
Ta. Ditto: ditto, another view. 
7. Ditto: vertical section anterior to the operculum. 
7¢. Ditto: horizontal section at the operculum, when withdrawn 
Sa. 
into shell to the full extent: the arrow shows the anterior side 
of same and direction towards the aperture; col, columella 
rest of lettering same as above. 
Diplommatina blanfordiana, Bs., x 12. Darjiling. Showing 
similar constriction. Front view. 
Ditto. Ditto. Viewed from side. 
Diplommatina insignis, G.-A.: operculum, x 20. 
