184 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
LITERATURE CITED. 
Agassiz, A. 
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Agassiz, A. 
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Agassiz, A. 
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Agassiz, L. 
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Asassiz, L. ; 
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Brandt, J. F. 
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Chun, C. 
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Chun, C. ¢ 
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Chun, C. 
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Deutsche Zool. Gesell. Verhandl., pp. 48-111, Figs. in Text. 
