180 PROCEEDINGS OF THE ROYAL SOCIETY OF QUEENSLAND. 



27. Width more than 7 per cent, of the total length 28 



Width less than 7 per cent, of the total length 29 



28. Opaque and firm . . . . . . . . . . moreauensn 



Transparent and flaccid . . . . . . . . enflata, 



29. Seizing jaws 7 or more . . . . . . . . bipunctata 



Seizing jaws never more than 7 . . . . decipiens 



Text figures, 1-4. 

 Pig. 1. — Sngitta atlantica sp. nov. This drawing is incorrect with 



regard to the posterior fin, which actually has a small rayless 



anterior portion. 

 Fig. 2. — Sagitta equatoria sp. nov. 

 Pig. 3. — Sagitta vioreauensis sp. nov. 

 Pig. 4. — Sagitta moreamnsis tip of seizing jaw. 



Eeference to lettering: a. — Anus. a.f. — Anterior fin. a.t. — 

 Anterior teeth, c— Collarette, j. — Seizing jaw. ov. — Ovary, p.f. — ■ 

 Posterior fin. r.s. — Eeceptaculum seminis. s. — Shaft. t. — Tail 

 septum. tp. — Tip of seizing jaw. ts. — Testis. v.g. — Ventral 

 ganglion, v.s. — Vesicula seminalis. 



BIBLIOGRAPHY. 

 1911. Michael, E. L. — Classification and Vertical Distribution of 



the Chaetognatha of the San Diego Region. 

 University of California Publications in Zoology, 8 (3) 1911, 



pp. 21-186. 

 1919. Michael, E. L. — Report on the ChEetognatha collected by the 



United States Fisheries steamer ' ' Albatros ' ' during the 



Philippine Expedition, 1907-1910. Smithsonian Institute, 



United States National Museum. Bulletin 100, vol. I., 



pt. 4, pp. 235-277. 

 1911. Ritter-Zahony, R. von. — Revision der Chcetognathen, Deutsche 



Sud-polar Exped.; XIII., Band. Zool. 5 Band. Heft. I 



