The folloiving reports are in preparation on the Dredginrj Operations off the West Coast of 

 Central America to the Galapagos, to the West Coast of Mexico, and in the Gulf oj Cali- 

 fornia in charge of Alexander Agassiz, carried on hy the U. S. Fish Commission Steamer 

 -Albatross," during 1891, Lieut.-Commauder Z. L. Tanner, U. S. N., Commanding :- 



A. AGASSIZ. 11. 1 General Sketch of the 

 Expedition of the " Albatross," from Feb- 

 ruary to May, 1891. 

 A. AGASSIZ. The Pelagic Fauna. 

 A. AGASSIZ. The Deep-Sea Panamic Fauna. 

 A. AGASSIZ. I.^ On Calamocrinus, a new 



Stalked Crinoid from the Galapagos. 

 A. AGASSIZ. The Echini. 

 ,TAS. E. BENEDICT. The Annelids. 

 R. BERGH. XIII.13 The Nudibranchs. 

 K. BRANDT. Tlie Sagittfe. 

 K. BRANDT. The Thalassioote. 

 C. CHUN. The Siphonophores. 

 C. CHUN. The Eyes of Deep-Sea Crustacea. 

 S. F. CLARKE. XI." The Hydroids. 



W. H. DALL. The Mollusks. 

 C. B. DAVENPORT. The Bryozoa. 

 W. FAXON. VI.,5 XV.15 The Stalk-eyed 

 Crustacea. 



S. GARMAN. The Fishes. 



W. GIESBRECriT. The Copepods. 



A. GOES. III.*' The Foranunifera. 



H. J. HANSEN. The Cirripeds and Isopods. 



C. HARTLAUB. The Comatul*. 



W. A. HERDMAN. The Ascidians. 



S. J. HICKSON. The Antipathids. 



W. E. HOYLE. The Cephalopods. 



G. VON KOCH. The Deep-Sea Corals. 



C. A. KOFOID. Solenogaster. 



R. VON LENDENFELD. The Phosphorescent 



Organs of Fishes. 

 H. LUUWIG. IV.,5 Xn.i2 The Ilolothurians. 

 C. F. LiJTKEN. The Ophiuridae. 

 O. MAAS. The Acalephs. 

 E. L. MARK. The Actinarians. 

 GEO. P. MERRILL. V.'' The Rocks of the 



Galapagos. 

 G. W. MtJLLER. The Ostracods. 

 JOHN MURRAY. The Bottom Specimens. 

 ARNOLD ORTMANN. XIV.i^ The Pelagic 



Schizopods. 

 ROBERT RIDGWAY. The Alcoholic Birds. 

 P. SCHIEMENZ. Tlie Pteropods and Iletero- 



pods. 

 W. SCHIMKfiWITSCH. VIIl.^ The Pyc- 



nogonidiB. 

 S. H. SCUDDER. VII.' Tlie Orthoptera of 



the Galapagos. 

 \V, PERCY SLADEX. The Starfishes. 

 L. STEJNEGER. The Reptiles. 

 Th. STUDER. X.i» The Alcyonarians. 

 C. II. TOWNSEND. The Birds of Cocos Island. 

 M. P. A. TRAiJTSTEDT. The Salpida; and 



Doliolida;. 

 E. P. VAN DUZEE. The Halobatidje. 

 H. B. WARD. The Sipunculoids. 

 H. V. WILSON. The Sponges. 

 W. McM. WOODWORTH. IX.^ The Pla- 

 narians. 



Z„ Vol. XXI., No. 4, Jane. 1891, 10 pp. ; and Vol. XXIII., No. 1, February, 1892, 89 pp.. 



XVII., No. 2, January, 1892, 95 pp., 32 Plates. 



XXIV.. No. 7, August, 1893, 72 pp. 



XXIU.', No. 5, December, 1892, 4 pp.. 1 Plate. 



XXIV., No. 4, June, 1893, 10 pp. [Zool. Anzeig., No. 420, 18.)3.J 



XVI., No. 13, Julv, 1893, 3 pp. 



XXV., No. 1, September, 1893, 2.5 pp., 3 Plates. 



XXV., No. 2, December, 1893, 17 pp., 2 Plates. 



XXV., No. 4, .lanuary, 1894, 4 pp., 1 Plate. 



XXV., No. -5, January, 1894, 17 pp. 



XXV., No. G, Februarv, 1894, 7 pp., 5 Plates. 



XVII , No. 3, October, 1894, 183 pp., 19 Plates. 



XXV., No. 10, October, 1894, 109 pp., 12 Plates. 

 . XXV., No. 8, September, 1894, 13 pp., 1 Plate. 



XVIII., April, 1895, 292 pp., 67 Plates. 



