NOTES ON SPECIES OP SAGITTA GRAY. 175 



-except in a small anterior portion ; 55 per cent, of the fins 

 on the body; separated from the anterior fins by 10 per 

 cent, of the total length of the body. 



Anterior teeth 5 ; posterior teeth 8-9 ; seizing jaws 7. 



VesiculoB seminales fairly large, but not very 

 prominent ; they are touched by the tail fin, but are widely 

 separated from the posterior fins. 



Only one specimen was obtained ; during the run from 

 Madeira to the Canary Islands, on 27th August, 1919. 



Sagitta eauatoria sp. nov. 



(Fig. 2.) 



A firm opaque form with a verj^ large head, which 

 resembles *S'. macrocephala in this feature and in the width 

 of the body, but is readily distinguishable by the anterior 

 fins, which in S. macrocephala are only half the length of 

 the posterior, and by the possession of twelve posterior teeth 

 as compared to thirty-six in (Sf. macrocephala. 



Length 7-2 mm ; width 12 per cent, of the total length ; 

 tail length 35 per cent, of the total length; tail to ventral 

 ganglion 644 of the total length. 



Anterior fins 19 per cent, of the total length of the 

 body, with a rayless anterior portion, and reaching the 

 A^entral ganglion. 



Posterior fins 22 per cent, of the total length of the 

 body, with a rayless anterior portion, and reaching the 

 vesicula? seminales ; more than 50 per cent, of the fins in 

 front of the tail septum. 



Anterior teeth 10; posterior teeth 12. 



Seizing jaws 7, the tips are pointed, the shafts widely 

 spread ; vesicular seminales small, reached b}^ posterior fins 

 and separated from the tail fin ; eggs few and large. 



The solitary specimen from which this species is named 

 Avas captured off the coast of West Africa in latitude 15° 

 N. during August, 1919. 



Sagitta moreauensis sp. nov. 



(Figs. 3, 4.) 



A firm semi-opaque form, which resembles S. fridrici 

 and S. hipunctata, but differs from these in the followinp- 



