The following Reports are in preparation on the Dredging 

 Operations off the West Coast of Central America to the 

 Galapagos, to the West Coast of Mexico, and in the Gulf of 

 California, in Charge of Alexander Agassiz, carried on by 

 the U. S. Fish Commission Steamer " Albatross," during 1891, 

 Lieut. Commander Z. L. Tanner, U. S. N., Commanding. 



A. AGASSIZ. II. 1 General Sketch of the 

 Expedition of the "Albatross," from 

 February to May, 1391. 



A. AGASSIZ. The Pelagic Fauna. 



A, AGASSIZ. The Deep-Sea Panamic Fauna. 



A. AGASSIZ. I. 2 On Calamocrinus, a new 

 Stalked Orinoid from the Galapagos. 



A. AGASSIZ. The Echini. 



JAS. E. BENEDICT. The Annelids. 



R. BERGH. XIII. 13 The Nudibranchs. 



K. BRANDT. The Sagittse. 



K. BRANDT. The Thalassicolae. 



C CHUN. The Siphonophores. 



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



S. F. CLARKE. XI. 'i The Hydroids. 



W, H. DALL. The Mollusks. 



C. B. DAVENPORT. The Bryozoa. 



W. FAXON. VI.3 The Crustacea 



S. GARMAN. The Fishes. 



W. GIESBRECHT. XVI.is The Copepods. ' 



A. GOES. III. 4 The Foraminifera. 



H. J. HANSEN. The Cirripeds and Isopods. 



C. HARTLAUB. The Comatulse. 



W. A. HERDMAN. The Ascidians. 



S. J. HICKSON. The Antipathids. 



,W. E. HOYLE. The Cephalopods. 



G. vox KOCH. The Deep-Sea Corals. 



C. A. KOFOID. Solenogaster. 



R. von LENDENFELD. The Phosphores- 

 cent Organs of Fishes. 



H. LUDWIG. IV.g XII." The Holothurians. 



C. F. LUTKEN. The Ophiuridas. 



E. L. MARK, The Actinarians. 



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

 Galapagos. 



G. W. MULLER. The Ostracods. 



JOHN MURRAY. The Bottom Specimens. 



A. ORTMAJSTN. XIV.^ The Schizopods. 



ROBERT RIDGWAY. The Alcoholic Birds. 



P. SCHIEMENZ. The Pteropods and Het- 



eropods. 

 W. SCHIMKEWITSCH. VHI.8 The Pyc- 



nogonida?. 



S. H. SCUDDER. VII J The Orthoptera of 



the Galapagos. 

 W. PERCY SLADEN. The Starfishes. 

 L. STEJNEGER. The Reptiles. 

 TH. STUDER. X. 10 The Alcyonarians, 

 C. H. TOWNSEND. The Birds of Cocos 



Island. 

 M. P. A. TRAUTSTEDT. The Salpid* and 



Doliolidse. 

 E. P. VAN DUZEE. The Halobatidae. 

 H. B. WARD. The Sipunculoids. 

 H. V. WILSON. The Sponges. 

 W. McM. WOODWORTH. IX. 9 The Pla- 



narians. 



> null M. 0. Z., Vol. XXI., No. 4, June, 1891, 10 pp. ; and Vol. XXIII., No 1, February, 1892, 

 pp. , 22 Plates. 



2 Mem. M. C. Z., Vol. XVII., No. 2, January, 1892, 95 pp., 32 Plates. 

 • = Hull. M. I'. /.., Vol. XXIV., No. 7, August, 189.1, 72 pp. 



* Hull. M. C. Z.j Vol. XXIII., No. 5, December, 1892, 4 pp. , 1 Plate. 



'■> Bull. M. Ci Z., Vol. XXIV.. No. 4, June, 1893, 10 pp. [Zool. Anzeig., No. 420. 1893.] 



« Hull M. ('. Z., Vol. XVI., No. 13, July, 1893, 3 pp. 



" Hull. M. ('. /, , Vol. XXV., No. 1, September, 1893, 25 pp. 



» Bull. M, C /.., Vol. XXV., No. 2, Dceemher, 1893, 17 pp., 2 Plates. 



'■' Hull. M. ill /.., Vol XXV., No. 4. January, 18114, 4 pp., 1 Plate. 

 ln Bull. M. C. Z., Vol XXV., No. 5, February, 18'.)4, 17 pp. • 

 " Bull. M. 0. Z., Vol. XXV. No. fi, February, 1894, 7 pp., 5 Plates. 

 " Hull. M. ('. ■/.., Vol. XXV. No, 8, September. 18114, 13 pp., 1 Date. 

 » Ball. M. ('. /,., Vol XXV. No. 10, October, }B9i, I&O pp.J 12 Plates. 

 H Mem. M. <'. '/.., Vol. XVII. No. 3, o.-tol.er, 1894, 183 pp. , 19 Plates. 

 >5 Bull. M. 0. Z., Vol. XXV. No. 12, April, 1895, 20 pp., 4 Plates. 



