W. K. BROOKS ON THE GENUS SALPA. 3 



ranean, are so faithfully described that most of them can still be iden- 

 tified, and continue to bear the names which he gave them. He also 

 proposes for them the generic name salpa, and gives the first satisfactory 

 definition of them. 



We think also of Chamisso, who, in 1814, left his romances and his 

 poetry to go round the world with Kotzebue, and who found in the life- 

 history of salpa a story more strange and wonderful than that of Peter 

 Schlemihl ; of Quoy and Gaimard, who, after many years of wandering 

 among the islands of the Pacific with Freycinet and with Dumont d'Ur- 

 ville, enriched our literature with the zoological treasures of the "Voyage 

 autour du monde" and the "Voyage de la corvette 1' Astrolabe." 



These and many other famous names are associated with the zoology 

 of salpa, but the history of the literature of the subject has been reviewed 

 so many times that we cannot dwell upon it, and the reader may refer 

 to the bibliography which is given by Traustedt in his Spolia Atlantica, 

 (Vidensk. Selsk. Skr., 6th Raekke 2, viii, Kjobenhavn, 1885, pp. 341-346,) 

 or to the historical sketch and bibliography which are given by Herdman 

 in the introductory chapters to his various reports on the Tunicata of the 

 Challenger Expedition, (Report upon the Tunicata collected during the 

 Voyage of H. M. S. Challenger during the years 1873-76). 



I shall not duplicate these lists, but since there are a few papers to 

 which I shall have to make frequent references, I give them here in a 

 numbered series, and I shall refer to them hereafter by number. 



1. LEUCKAKT, Dr. RUDOLF. Zur Anatoraie und Entwicklungsgeschichte der Tuni- 

 caten. Zoologische Untersuchungen 2. Giessen, 1854. 



2. SALENSKY, Dr. W. Ueber die embryonale Entwicklungsgeschichte der Salpen. 

 Zeit. f. wiss. Zool. XXVII, pp. 179-237. Plates XIV-XVI. 



3. SALENSKY, Prof. W. Ueber die Entwicklung der Hoden und iiber den Genera- 

 tionswechsel der Salpen. Zeit. f. wiss. Zool. XXX, Supplement, pp. 375-393. Taf. 

 XIII. 1878. 



4. BARROIS, Dr. J. Memoire sur les membranes embryonnaires des Salpes. 

 Journ. de 1'Anat. et de la Phys., pp. 455-498. Plates XVII and XVIII. 1881. 



5. SALEKSKY, Prof. W. Neue Untersuchungen iiber die embryonale Entwicklung 

 der Salpen. Mittheilungen aus der Zoologischen Station zu Neapel, I, pp. 90-171 and 

 327-402. Plates VI-XVII and XXII-XXVII. 1882. 



6. KOWALEVSKY, A., and BARROIS, J. Materiaux pour servir a 1'histoire de 1'An- 

 chinie. Journ. Anat. Phys. XIX, 1883, pp. 1-23. Plates I-III. 



7. ULJANIN, Dr. BASILIUS. DieArten der Gattung Doliolum im Golf e von Neapel. 

 Fauna und Flora des Golfes von Neapel, X, 1-140, with twelve plates. 1884. 



8. TRAUSTEDT, M. P. A. Spolia Atlantica. Bidrag til Kundskab von Salperne. 

 Mem. Acad. Royal Copenhagen, 6, II, 8. 1885. Ten plates. 



