Fig. 
7. Leptinaria pittieri, n. (p. 317), La Palma, j. 
8. , var. obliquata, n. (p. 317), Tarbaca, 7. 
9. stolli, n. (p. 316), Retalhuleu, living animal, from a drawing made by Dr. O. Stoll, 
the shell : 9a, aperture of a young specimen, oblique view, $- 
10. exigua, n. (p. 318), Teapa, }. 
11. sinistra, n. (p. 319), Acoyapa, +. 
12. crenulata, n. (p. 818), Talamanca, }. 
13. guatemalensis, Cr. & Fisch., var. majuscula, n. (p. 319), Rio Grande de Terraba, ¢. 
14. biolleyi, n. (p. 319), San José, F. 
15. costaricana, n. (p. 320), San José, Costa Rica, $. 
16. —— hapaloides, n. (p. 321), Rio Grande de Terraba, }. 
17. —— ambigua, n. (p. 321), Puerto Viejo, #. 
18. —— solida, n. (p. 321), Puerto Viejo, #. 
19. —— elisa, Tristr. (p. 322), Coban, one of Tristram’s typical specimens, f. 
20, —— convoluta, un. (p. 322), Santa Clara, $: 20a, aperture, seen from above, a little more: 
enlarged. 
2] emmeline, Tristr. (p. 323), Coban, young specimen from Salvin’s collection, 3. 
PLATE XIX. 
[The vertical lines indicate the natural size of the shells.] 
1. Pupoides marginatus, Say (p. 329), Mexico, ¢: two views, front and back. 
2. Succinea luteola, Gould, var. subtilis, n. (p. 331), Vera Cruz, \ 
3. , var. rudiuscula, n. (p. 331), Tehuacan, 
4, —— virgata, v. Mart. (p. 334), Oaxaca, 
7 , var. hoegeana, n. (p. 384), Oaxaca, 
6. —— costaricana, n. (p. 338), Djiri Durunia, 2, two views, front 
7. —— brevis, Dunk. (p. 339), Zimapan, typical specimen from and back. 
Dunker’s collection, 
8. undulata, Say, var. moerchi, Dunk. (p. 336), Zimapan, 
9. guatemalensis, Morel. (p. 337), Antigua, 
10. undulata, Say (p. 835), Mexico, obtained by Uhde, 
11. ampullacea, n. (p. 340), Ameca. 
12. 
EXPLANATION OF PLATES. 
Limnea columella, Say, var. championi, n. (p. 378), Bugaba, 3. 
13, 14. Veronicella stolli, n. (p. 351), Retalhuleu, living animal, from drawings made by 
Dr. O. Stoll. 
15, 16. Carychium exiguum, Say, var. mexicanum, Pilsbry (p. 852), Helvetia, Cholhuitz, two 
specimens, #. | 
17, 18. —— , Var. costaricanum, n. (p. 858), San José, two specimens, 3. 
19. Physa (Aplecta) nitens, Phil. (p. 357), Vera Cruz, 
20, (——) maugerie, Gray (p. 354), specimen from the Paetel 
collection, + a little enlarged. 
21, 22. (Stenophysa) princeps, Phil., var. pallens, n. (p. 364), 
Yucatan, two specimens, 
/ 
