The following Reports have been pibi.ished or are in prepa- 

 ration on the Dredging Operations off the West Coast of 

 Central America to the Galapagos, to the West Coast of 

 Mexico, and in the Gulf ok California, in Charge of Alex- 

 ander Agassiz, carried on by the U. S. Fish Commission 

 Steamer "Albatross," during 1891, Lieut. Commander Z. L. 

 Tanner, U. S. N., Commanding. 



H. LUDWIG. IV. « XII." The Holothu- 



rians. 

 C. F. LUTKEN and TH. MORTENSEN. 



The Ophiuridse. 

 OTTO MAAS. XXI. 21 The Acalephs. 

 J. P. McMURRICH. The Actinarians. 

 E. L. MARK. XXIV.2 4 The Cerianthidaj. 

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



Galapagos. 

 G. W. MULLER. XIX. 19 The Ostracods. 

 JOHN MURRAY. The Bottom Specimens. 

 A. ORTMANN. XIV." The Pelagic Schi- 



zopods. 

 ROBERT RIDGWAY. The Alcoholic Birds. 

 P. SCHIEMENZ. The Pteropods and Het- 



eropods. 

 W. SCHIMKEWITSCH. Vin.s The Pyc- 



nogonidse. 

 S. H. SCUDDER. VTI.' The Orthoptera of 



the Galapagos. 

 W. PERCY SLADEN. The Starfishes. 

 . L. STEJNEGER. The Reptiles. 

 TH. STUDER. X. 10 The Alcyonarians. 

 C. H. TOWNSEND. XVII." The Birds of 



Cocos Island. 

 M. P. A. TRAUTSTEDT. The Salpidee and 



Doliolidfe. 

 E. P. VAN DUZEE. The Halobatidaj. 

 H. B. WARD. The Sipunculoids. 

 H. V. WILSON. The Sponges. 

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



narians and Nemerteans. 

 W. McM. WOODWORTH. XXVII. 2 ' 

 Planktonemertes 



1 Bull M.C. Z., Vol. XXL, No. 4, June 1891, 16 pp. ; and Vol. XXIII., No 1, February. 1892, 

 89 pp., 22 1' 



2 Mem. M. C.Z.", Vol. XVII., Xo. 2, January. 1^92, 95 pp., 32 Plares. 

 s Bull. M. 0. Z., Vol XXIV.. X >. 7, August, 1893, 72 pp. 



*■ Bull. M. 0. Z., Vol XXIII., Xo. 5, December, 1892, 4 pp.. 1 Plate. 

 5 Bull. M. ('. Z., Vol XXIV.. Xo 4, June, 1893, 10 pp [Zool. Auzeig., No. 420, 1893.] 

 M. C. Z., Vol. XVI., Xo. 13, July, 1893, 3 pp 



Vol. XXV , Xo 1 September, 1S93. 25 pp. 

 M. C. Z . Vol. XXV., Xo. 2. December, 1893, IT pp., 2 Plates. 

 Xo. 4. January, 1894, 4 pp., 1 Plate. 

 Xo. 5, February, 1894, 17 pp. 

 No. 6, February, 1894, 7 pp . 5 Plates. 

 Xo 8. September, 1*94. 13 pp., 1 Plate. 

 Vol XXV. Xo. 10. October, ls'.'l. 109 pp , 12 Plate?. 

 Vol. XVII Xo. 3. October. 1894, 183 PP- '9 Plates. 

 Vol. XXV. Xo 12. April. 1895, 2" pi' . 4 Plates 

 . Vol. XVIII., April. 1895, 2:'2 pp . 67 Plates, 1 Chart 

 Vol. XXVII . Xo. 3, July, 1895. 8 pp., 2 Plates. 

 Vol XXVII., Xo 4, August, 1895. 2fi pp . 3 Plates. 

 19 Bull. M C. Z , Vol XXVII., Xo. 5. October, 1895, 14 pp., 3 Plates 

 =" Bull M. 0. Z . Vol XXX , Xo 1. March, 1896, 103 pp.. 9 Plates, 1 Chart. 



21 Mem. M C. Z., Vol. XXIII . Xo. 1, September, 1897, 92 pp., 15 Plates. 



22 Bull. M. '' Z . Vol XXXI , Xo 5, December, 1897. 37 pp., 6 Plates. 1 Chart. 

 *> Bull. M. C. Z., Vol XXXII.. x,,. 5. May, 1898, 18 pp 13 Plates, 1 Chart 

 2 < Bull. M C. 7... Voi xxx :.. Xo. S. August, 1898, 8 pp . 3 Plates. 

 2 " Bull. M. C. Z., Vol. XXXV.. No. 1. July 1899, 4 pp., 1 Plate. 



A. AGASSIZ. II. 1 General Sketch of the 

 Expedition of the "Albatross," from 

 February to May, 1891. 



A. AGASSIZ. The Pelagic Fauna. 



A. AGASSIZ. The Daep-Sea Panamic Fauna. 



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

 Stalked Crinoid from the Galapagos 



A. AGASSIZ. XXIII.** The Echini. 



JAS. E. BENEDICT. The Annelids. 



R. BERGH. XIII. 13 The Nudibranchs. 



K. BRANDT. The Sagitt*. 



K. BRANDT. The Thalassicolse. 



C CHUN. The Siphonophores. 



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



S F. CLARKE. XI. 11 The Hydroids. 



W. H. DALL. The Mollusks. 



W. FAXON. VI. 3 XV.^ The Stalk-eyed 

 Crustacea. 



S. GARMAN. The Fishes. 



W. GIESBRECHT. XVI. 1 "' The Copepods. 



A. GO as. Ill 4 XX.» The Foraminifera. 



H. J. HANSEN. XXII. 22 The Cirripeds 

 and Isopods. 



C. HARTLAUB. XVHT." The Comatula?. 



W. A. HERDMAN. The Ascidians. 



S. J. HICK30N. 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. 



6 Bull 



7 Bull. M 

 s Bui 

 '■' Bull M 0. Z., Vol. XXV. 



w> Bull. M. C: Z., Vol XVV. 



11 Bull. M. C Z . Vol XXV 



12 Bull. \I. C. Z. 



Vol. XXV. 



13 Bull. M. C Z 

 11 Men. M. 0. Z . 

 >5 Bull M. C Z . 

 »6 Mem M. Z 

 « Bull. M. C Z , 

 » Bull. M. C. Z , 



