NOTES ON SPECIES OF SAGITTA — GRAY, 171 



Notes on Species of Sagitta collected 

 during a voyage from England to 

 Australia. 



By B. B. Gray, F.L.S. 

 (Figures 1-1.) 



{Read before the Royal Society of Queensland, Z\st August, 1922). 



The Sagitta which are identified in ihis paper were 

 collected by Doctor Moreau during a voyage from England 

 to Australia via the Cape of Good Hope in the year 1919. 



Thirteen species were obtained, three of which are 

 regarded as new. 



The method of collecting was by means of a tow-net 

 attached to a sea tap. which was left open for an indefinite 

 length of time. 



An especial interest attaches to the material collected 

 between Plymouth and ^lorocco, as in this haul twelve 

 larval AmpJiioxus were taken. 



I take this opportunity of thanking Professor T. 

 Harvey Johnston, University. Brisbane, for his kindness 

 in handing the specimens to me for identification. 



Sagitta enflata Grassi. 



Synonymy. — 6'. hjra Langerhans 1880; *S'. gardineri 

 Doncaster 1902; *S'. hrachyccphala Moltschanoff 1907. 



Several specimens of this species were obtained off 

 the coast of Y/est Africa in latitude 15"" N. during August, 

 1919. Already recorded from the Atlantic, Indian, and 

 Pacific Oceans between 10° N. and 40° S. 



Sagitta hexaptera D'Orbigny. 



Synona'my. — S. mediterranea Forbes 1843; S. 

 Mpvnctata Krohn 1844; 8. tricuspidata Kent 1870; S 

 magna Langerhans 1880; S. longidentata Grassi 1881; S. 

 ■daririni Grassi 1883. 



Individuals of this form were obtained during the 

 passage from St. Paul's Rocks to 122° E. longitude in 

 September, 1919. Already recorded from the Atlantic, 

 Indian, Pacific, and Antarctic Oceans. 



