CONTENTS. 
No. 1. — Contributions from the Zodlogical Laboratory. XXXII. On Urna- 
tella gracilis. By C. B. Davenport. (6 Plates.) January, 1893 
No. 2. — Contributions from the Zoólogical Laboratory. XXXIV. Note on 
Carotids and the Ductus Botalli of the Alligator. By C. B. DAVENPORT. 
(1 Plate.) January, 1893 
No. 8. — Contributions from the Zodlogical Laboratory. XXXV. On the 
Eyes, the Integumentary Sense Papille, and the Integument of the San 
Diego Blind Fish (Typhlogobius californiensis, Steindachner). By W. E. 
Rrrrer. (4 Plates.) April, 1893 
No. 4. — Reports on the Dredging Operations off the West Coast of Central 
America to the Galapagos, ete, by the U. S. Fish Commission Steamer 
“ Albatross.” IV. Vorlüuflger Bericht über die erbeuteten Holothurien. 
Von HunrnT Lupwia. June, 1893 
No. 5. — Contributions from the Zoölogieal Laboratory. XXXVI. The 
Development of the Scales of Lepidosteus. By W. S. Nickerson. (4 
Plates.) July, 1893 
No. 6. — Contributions from the Zoölogical Laboratory. XXXVII. Studies 
in Morphogenesis. I. On the Development of the Cerata in ZBolis. By 
C. B. Davenport. (2 Plates.) July, 1893 . 
No. 7.— Reports on the Dredging Operations off the West Coast of Central 
America to the Galapagos, etc., by the U. 5. Fish Commission Steamer 
« Albatross.” VI. Preliminary Descriptions of New Species of Crustacea. 
By WarrER Faxon, August, 1803 
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