MUSEUM OF COMPARATIVE ZOOLOGY. 219 
Ehlers, E. Sce Keferstein, W., and Ehlers, E. 
*Ehrenberg, (C. G.). 
Symbole Physice, IV. Berolini, 1831. 
(Describes egg-capsules in hydroids.) 
Ellis, J., and Solander, D. 
The Natural History of many curious and uncommon Zodphytes, collected 
from various Parts of the Globe. London, 1786. 
Eschscholtz, F. 
System der Acalephen. Line ausfiihrliche Beschreibung aller Medusenartigen 
Strahlthiere. pp. 1-190, pls. 1-X VI. Berlin, 1829, 
Fabricius, O. 
Fauna Greenlandica. Hafnie et Lipsie, 1780. 
Fewkes, J. Walter. 
Studies of the Jelly-fishes of Narragansett Bay. 1881. Bull. Mus. Comp. 
Zool., VIII. No. 8, pp. 141-182, pls. 10. 1880-81. 
Abstr. in Journ. Roy. Micr. Soc. (2), I. p. 5, Oct., pp. 746, 747. 
(Lizzia, Zygodactyla, Tima, Eucheilota, Trachynema, Cunina, Agalma, Cyanea, 
Mnemiopsis.) 
Explorations of the Surface Fauna of the Gulf Stream. I. Notes on Acalephs 
from the Tortugas, with a Description of New Genera and Species. Bull. 
Mus. Comp. Zobl., 1X. No. 7, pp. 251-289, pls. 7. 1882. 
(Eucharis, Ocyroé, Cassiopea, Linerges, Glossocodon.) 
Budding in Free Meduse. Amer. Natur., XIV. pp. 50,51. 1881. 
(Alternation of generations in Willia.) 
Note on the Structure of Rhizophysa filiformis. 1879. Proc. Boston Soc. 
Nat. Hist., XX. pp. 292-303, pl. I. 1878-80. 
(Development of tentacular knobs and sexual organs.) 
Contributions to a Knowledge of the Tubular Jelly-fishes. Bull. Mus. Comp. 
Zool., VI. No. 7, pp. 127-146, pls. 4. 1880. 
(Development of the knobs of Physophora.) 
The Siphonophores. II. The Anatomy and Development of Agalma. Amer. 
Natural., XV. pp. 186-195, figs. 1881. 
(Development of Agalma elegans.) 
On the Acalephe from the East Coast of New England. Bull. Mus. Comp. 
Zobl., 1X. No. 8, pp. 291-310, pl. 1. 1882. 
(Mnemiopsis, Willia, Phialidium.) 
Exploration of the Surface Fauna of the Gulf Stream under the Auspices or 
the U. S. Coast Survey. By Alexander Agassiz. I. On a Few Meduse 
from the Bermudas. Bull. Mus. Comp. Zodl., XI. No. 3, pp. 79-90, pl. I. 
(Young of Tamoya punctata sp. noy., Ectopleura sp. (?); Ephyra with sixteen 
otocysts (young Cassiopea); resemblance of sexual clusters of Rhizophysa and 
Physalia.) 
