160 
Fig. 
Fig. 
Fig. 
Fig. 
LAND AND FRESHWATER 
EXPLANATION OF PLATE XXX. 
1, la. Oxytes oxytes, Bs. Shell, natural size ; largest specimen from 
S.W. Khasi Hills. 
2, 2a. Ditto: usual size. Same locality. 
3. Ditto: animal. Cachar. From original drawing (No. 386) by 
native artist in Library, Indian Museum, Calcutta. 
8a. Ditto: the mucous gland, viewed from ubove. 
34. Ditto: tentacles. 
4. Oxytes orobia, Bs., from Stoliczka’s original drawing (No. 45), made 
by a native artist. 
EXPLANATION OF PLATE XXXtI. 
1. Oxytes cycloplax, Bs., nat. size, juv. W. Bhutan Hills. 
2. Ditto: animal, shell removed, viewed from right side, x 4. 
8. Ditto: extremity of foot, viewed from behind, x 4. 
4. Ditto: mantle-edge, as seen from left side, x 4. 
5, Ditto: jaw, « 12: 
6. Ditto: radula, centre teeth of, x 180. 
6a, Ditto: last median and first lateral teeth, x 180. 
66. Ditto: outermost laterals, x 180. 
7. Ditto: generative organs, x 4. 
8, 8a, 8b. Oxytes cycloplax, Bs., adult shell, nat. size. Darjiling. 
EXPLANATION OF PLATE XXXII, 
1. Oxytes orobia, Bs. Darjiling. Animal, from spirit-specimen, left 
side, with shell nearly all removed. 
la. Ditto: right side and sole of foot. 
16. Ditto: the left postdorsal lobe, enlarged. 
2. Ditto: jaw. 
8. Radula, central portion, x 200; 38a. Ditto, newer teeth; 36. 
9th, 10th and llth median; 3c. 15th to 20th lateral teeth; 
3d. The outermost laterals, 
4. Portion of animal in apex of shell, showing position of the herma- 
phrodite duct and liver-lobes. 
6. Generative organs, 
5a. Junction of hermaphrodite duct with the albumen-gland, very 
much enlarged. 
5. Portion of male organ, showing the kale-sac and coiled cecum 
of the retractor muscle, 
EXPLANATION OF PLATE XXXIII. 
1. Ariophanta immerita, W. Blf., nat. size. South India. 
2. Ditto: mantle viewed from left side, shell removed, x 4. 
2a. Ditto: the same turned back. 
3. Ditto: side view of extremity of foot. 
3a. Ditto: back view of same, showing mucous gland. 
4, Ditto: jaw, x 7. 
5. Ditto: teeth of radula, central portion, x 340. 
5a. Ditto: 20th to 24th median, 25th and 26th intermediate. 
54, Ditto: outermost laterals. 
6. Ditto: generative organs, x 2-4. 
6a. Ditto: male organ, x 4. 
7,7. Ariophanta levipes, Mull, nat. size. Bombay. 
