42 



ANNUAL REPORT OF THE 



PUBLICATIONS 



OF THE 



MUSEUM OF COMPARATIVE ZOOLOGY 



FOR THE YEAR 1911-1912. 



Bulletin: — 



Vol. LIII. • 



No. 6. The effect of colored light on pigment-migration in the eye of the 

 crayfish. By Edward C. Day. pp. 42. 5 Plates. December, 1911. 



No. 7. Effects of radium on living substance. 1. The influence of radia- 

 tions of radium upon the embryonic growth of the pomace-fly Drosophila 

 ampelophila, and upon the regeneration of the hydroid Tubularia crocea. 

 By E. D. Congdon. pp. 14. February, 1912. 



No. 8. Effects of radium on living substance. 2. Comparison of the 

 sensitiveness of different tissues in the dung-worm Allolobophora foetida, 

 and in the crayfish Cambarus affinis, to the beta rays of radium. By 

 E. D. Congdon. pp. 10. February, 1912. 



No. 9. On the hair-like appendages in the frog Astylosternus robustus 

 (Blgr.). By Willy Kukenthal. pp. 8. 5 Plates. February, 1912. 

 Vol. LIV. 



No. 7. Reports on the scientific results of the expedition to the Eastern 

 Tropical Pacific, in charge of Alexander Agassiz, by the U. S. Fish Com- 

 mission Steamer "Albatross," from October, 1904, to March, 1905, 

 Lieut. Commander L. M. Garrett, U. S. N., Commanding. XXII. 

 New genera and species of dinoflagellates. By Charles Atwood Kofoid 

 and Josephine Rigden Michener. pp. 38. August, 1911. 



No. 8. A new species of Peripatus from Grenada, with observations on 

 other species of the genus. By Charles T. Brues. pp. 16. 2 Plates. 

 August, 1911. 



No. 9. Bats from British East Africa. By Glover M. Allen, pp. 14. 

 December, 1911. 



No. 10. Reports on the scientific results of the expedition to the Eastern 

 Tropical Pacific, in charge of Alexander Agassiz, by the U. S. Fish Com- 

 mission Steamer "Albatross," from October, 1904, to March, 1905, 

 Lieut. Commander L. M. Garrett, U. S. N., commanding. XXIV. 

 A peculiar form of schizogony in Gonyaulax. By Charles Atwood 

 Kofoid and E. Josephine Rigden. pp. 16. 2 Plates. February, 1912. 



No. 11. Two new species of Ascodipteron. By Frederick Muir. pp. 18. 

 3 Plates. April, 1912. 



