!'2 CHjq'TOGNATA — SAGITTA 



Plankton-type. This species appeared in June 1899 near St. 

 Helena and was seen in November 1898 off Rio Janeiro. In the 

 northern hemisphere it follows the coasts of both Africa and Ame- 

 rica, but occurs chiefly between the Azores and the Bay of Biscay. 

 Its northern limit seems to be S. Iceland, the Faroes and western 

 Norway. It occurs abundantly in the North Sea and the Skagerak. 

 — S. (Nm.). 



SAGITTA ENFLATA (Grassi.) 



(Strodtmann: D. Systematik d. Chsetognaten, Berlin 1892, pag 18). 



1898 March: 3° 30' N. 16° W. to 11° N. 20° W., abundant. 



Temperature: 24.6 to 28.2. 

 Salinity: 34.86 to 35.26. 



Plankton-type. Noted from Madeira and the Mediterranean. 

 Evidently a neritic form. — Nt. 



SAGITTA SERRATO-DENTATA (Krohn). 



(Strodtmann: D. Systematik d. Chsetognaten, Berlin 1892, pag. 17 fig. 2). 



1898 January: 15° N. 18° W. 



March: 6° S. 4° W. to 23° N. 28° W. 

 September: 12° N. 27° W. 

 November: 19° N. 58° W. 



Temperature: 24.2, mean of 8 obs., max. 27.5, min. 20. 

 Salinity: 35.99, mean of 7 obs., max. 36.9i, min. 34.86. 

 Plankton-type. Noted from the Mediterranean. — D. 



