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OTTO HABBASSOWITZ, B. FBIEDLAENDEB & SOHN, 

 LEIPZIG. BEELIN. 

 Agent for the series in American Arch Agent for the series in American Arch- 

 aeology and Ethnology, Classical Philology. aeology and Ethnology, Botany, Oeology, 

 Education, Modem Philology, Philosophy, Mathematics, Pathology, Physiology, Zool- 

 Psychology, History. ogy, and Memoirs. 



ZOOLOOT. — ^W. E. Bitter and C. A. Kofoid, Editors. Price per volume $3.50. Commenc- 

 ing with Volume n, this series contains Contributions from the Labora- 

 tory of the Marine Biological Association of San Diego. 



Cited as Univ. Calif. Fabl. Zool. 



Volume 1, 1902-1905, 317 pages, with 28 plates $3.50 



A list of titles will be sent on request. 



VoL 2. (Contributions from the Laboratory of the Marine Biological Association 

 of San Diego.) 

 Introduction. A General Statement of the Ideas and the Present Alms 

 and Status of the Marine Biological Association of San Diego, by 

 William E. Bitter, Director of the Station. Pp. i-xvlL 2 Maps JS 



1. The Hydroids of the San Diego Begion, by Harry Beal Torrey. Pp. 



1-43. 22 text figures. December, 1904. 



2. The Ctenophores of the San Diego Begion, by Harry Beal Torrey. 



Pp. 45-61, plate 1. December, 1904. 



Nos. 1 and 2 in one cover _ _ _ _ 60 



S. The Pelagic Tunicata of the San Diego Begion, excepting the Larvacea, 

 by William E. Bitter. Pp. 51-112, plates ^3. 31 text-figures. Jan- 

 uary, 1905 « - -. .65 



4. The Pelagic Copepoda of the San Diego Begion, by 0. O. Esterly. Pp. 



113-233, 62 text figures. September, 1905 — 1.26 



5. The lij on-encrusting Chilostomatous Bryozoa of the West Coast of North 



America, by Alice Eobertson. Pp. 236-822, plates 4-16. December, 

 1905 _ - 1.00 



6. Differentiation in Hydrcid Colonies and the Problem of Senescence, 



by Harry Beal Torrey. Pp. 232-332, 4 text-figures. December, 1905. 



7. The Behavior of Corymorpha, by Harry Beal Torrey. Pp. 333-340, 



5 tort-figures. 



Nos. 6 and 7 in one cover _ „ .26 



8. Dinoflagellate of the San Diego Begion. I. On Heterodlnlum, a New 



Genus of the Peridinidae, by Charles Atwood Kofoid. Pp. 341-368, 



plates 17-19. January, 1906 .26 



Index, pp. 369-382. 

 Vol. 8. 1. Some Observations on the Nervous System of Copepoda, by O. O. 



Esterly. Pp. 1-12, plates 1-2. January, 1906 „ .28 



2. (IX)* Ostracoda of the San Diego Begion. 1. Halocypridae, by 



Chancey Juday. Pp. 13-38, plates 3-7. April, 7.906 JSO 



S. (X) The California Shore Anemone, Bunodactis xantTiogrammica, by 

 Harry Beal Torrey. Pp. 41-46, plate 8, April, 1906. 



4. (XI) Sexual Dimorphism in Aglaophenia, by Harry Beal Torrey and 



Ann Martin. Pp. 47-52, 9 text-figures. April, 1906. 



Nos. 3 and 4 in one cover — ~ - ~ ^ 



5. (Xn) New Copepod Fauna from the San Diego Begion, by Calvin Olln 



Esterly. Pp. 53-92, plates 9-14. December, 1906 .86 



6. (XH) Dinoflagellata of the San Diego Begion, n. On Triposolenla, a 



New Genus of the Dlnophysidae, by Charles Atwood Kofoid. Pp. 

 93-116, plates 15-17. 



7. A Discussion of the Species Characters in Triposolenla. I. The Nature 



of Species Characters, n. The Adaptive Significance of Species 

 Characters. HI. The Coincident Distribution of Belated Species. 

 By Charles Atwood Kofoid. Pp. 117-126. 



8. On the Significance of the Asymmetry in Triposolenla, by Charles 



Atwood Kofoid. Pp. 127-133. 



Nos. 6, 7, and 8 in one cover. December, 1906 .88 



• Boman numbers Indicate sequence of the Contributions from the Laboratory of tho 

 Marino Biological Association of San Diego. 



