276 bulletin: museum of comparative zoology. 



LITERATURE CITED. 



Agassiz, L. 

 '49. Characteristics of new Species from the Shores of Massachusetts. Proc. 

 Amer. Assoc. Adv. Sci., Vol. II. pp. 157-159. 



Beneden, E. van, et Julin, C. 

 '84. La segmentation chez les Ascidieus et ses rapports avec l'organisation de 

 la larve. Arch, de Biol., Tom. V. pp. 111-126, PI. VII., VIII. 



Beneden, E. van, et Julin, C. 

 '86. Recberches sur la morphologie des Tuniciers. Arch, de Biol., Tom. VI. 

 pp. 237-476, PI. VII.-XVL 



Boveri, T. 

 '88. Zellenstudien, Heft II. Die Befruchtung u. Theilung des Eies von As- 

 caris megalocephala. Jena. Zeitschr., Bd. XXII. pp. 685-S82, Taf. XIX.- 

 XXIIL 



Boveri, T. 



'90. Zellenstudien, Heft III. Ueber das Verhalten der chromatischen Kern- 

 substanz bei der Bilclung der Richtungskorper und bei der Befruchtung. 

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Brooks, W. K. 

 '93. The Genus Salpa, a Monograph with iifty-seven Plates. (303 pp., 47 Pis.) 

 With a Supplementary Paper — The Eyes and Subneural Gland of Salpa — 

 by M. M. Metcalf, pp. 305-371, Pis. XLVIII.-LVIL Johns Hopkins 

 Press, Baltimore. 



Castle, W. E. 

 '94. On the Cell Lineage of the Ascidian Egg. A Preliminary Notice. Proc. 

 Amer. Acad. Arts and Sci., Vol. XXX. pp. 200-217, 2 PI. 



Chabry, L. 

 '87. Contribution a. l'embryologie normale et teratologique des Ascidies sim- 

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 XXII. 



Conklin, E. G. 



'94. The Fertilization of the Ovum. Biol. Lectures, Mar. Biol. Lab., Wood's 

 Holl, [Vol. II.] pp. 15-35, 10 Figs. 



