188 BULLETIN: MUSEUM OF COMPARATIVE ZOÖLOGY. 
LITERATURE IN WHICH CAUDINA ARENATA IS DESCRIBED OR 
MENTIONED. 
(Arranged chronologically. ) 
Chirodota arenata. 
1. Gould, A. A. (’41)!, p. 346 (with woodcut). 
2, Pourtalès, L. F. (51), p. 18, 14. 
3. Stimpson, W. (751), p. 67. (A note as to habitat.) 
4. Ayres, W. O. (52), p. 143-145. 
Caudina arenata. 
5. Stimpson, W. (’53), p. 17. 
6. Agassiz, E. C. and A. (65), p. 97, Fig. 126. 
7. Clark, H. J. (765), p. 187-193, Figs. 114-116. 
8. Verrill, A. E. (66), p. 354. 
9. Selenka, E. (67), p. 358-359, Taf. 20, Figs. 129-131. 
10. Semper, C. (708), p. 44, Taf. 10, Figs. 8, 12, 14; Taf. 13, Fig. 5; Taf. 15, 
Fig. 18. 
11. Teuscher, R. (76), p. 542-560, Taf. 22. 
19. Kingsley, J. S. (781), p. 1-14, Pls. 1, 2. 
3. Marenzeller, E. von. (’81), p. 126, 127. 
14. Ludwig, H. (82), p. 129. (A notice of eight specimens from Grand 
Manan.) 
15. Théel, H. (82), p. 64. 
Caudina arenata armata. 
16. Théel, H. ('8005, p. 17, 18; 
1 See preceding Bibliography. 
