NOTES ON AUSTRALIAN CHAETOGNATHA., 
s 
By Proressor T. Harvey Jounston, M,A., D.Sc., aAnp 
B. BuckLaNp TAYLOR 
(Biology Department, University, Brisbane.) 
(Text-figures 1-4.) 
(Read before the Royal Society of Queensland, 28th April, 
1919). 
The Chaetognatha of the Australian coast have 
received very little attention. Apart fyom the collection 
made in Shark Bay, Western Australia, reported on by 
Ritter-Zahony (1910); no systematic attempt to investigate 
them seems to have been made. 
No records have been published regarding their pre- 
sence on the northern and southern coasts, though several 
species, viz., Sagitta hexaptera, 8S. serratodentata and 
Eukrohnia hamata have been reported from Antarctic 
waters due south of Australia (Fowler, 1907). A few casual 
determinations of species from the Eastern coast have been 
made by Ritter-Zahony in 1909 (S. bipunctata, S. serrato- 
dentata and S. robusta), and Jchnston in 1909 (S. 
australis). | Whitelegge (1889. p. 163) mentioned the 
occurrence of Sagitta sp. in Sydney Harbour, while Waite* 
reported that Sagitta was taken commonly in tew nets _ 
by the Thetis Expedition off the N.S.W. coast. Steinhaus | 
recorded S. enflata from 160° E, some distance westward 
of New Caledonia, but the record cannot be considered 
as Australian. Ritter-Zahony (1909 p. 792) referred to the 
* E. R. Waite, Memoirs Austr. Museum, 4 (1), 1899, p. 14. 
