218 
distribution 
LEONARD DONCASTER. 
is not real. It is rather surprising, however, that a species like S. hispida, 
recorded from the Bahamas and the coast of the United States, and therefore in the path 
of the Gulf Stream, should not yet have been found in the North-eastern Atlantic. 
In conclusion I wish to thank Mr C. Forster Cooper, B.A., for drawing the figures in 
the accompanying plate. 
EXPLANATION OF PLATE XIII. 
The corona ciliata has been represented as a dotted line, except in Fig. 7. 
Fie. 
Fie. 
Fie 
Fic. 
Fie 
Fic. 
Fia. 
ely? 
2. 
OrAS 
4 A. 
ORAS 
6. 
th 
Sagitta robusta nov. sp., outline. 1 8B. The same, head and neck. 
Sagitta ferox nov. sp., head and neck. 
Sagitta polyodon noy. sp., outline. 3 8, The same, head and neck. 
Sagitta pulchra nov. sp., outline. 4 4, The same, head and neck. 
Sagitta gardineri nov. sp., outline. 5 B. The same, head and neck. 
Sagitta septata nov. sp., showing peculiar structure of the ovaries. 
Sagitta regularis Aida, showing thickened epidermis, corona, and ovaries. 
