NOTE ON THE CEPI1AL0CII0RDA-KASWELL. 35 



ther, which is very abundant in Port Phillip ; H. cultellum, 

 Peters, and //. belcheri, Gray, the former known to occur in 

 Torres Strait, and as far south on the Queensland coast as 

 Moreton Bay, the latter known from Torres Strait (as well as 

 from the coast of Borneo) ; //. hectori, Benham, from the east 

 coast of the North Island of New Zealand ; and Asymmetron 

 lucayanum, Andrews, from Murray Island, Torres Strait, as 

 well as the Louisiade Archipelago and the Bahamas ; and 

 Heteropleuron hedleyi from Murray Island. 



An Amphioxus has been dredged in Port Jackson by Dr. E. 

 P. Ramsay, but the specimens obtained were never critically 

 examined, and have been lost. The only specimens from the 

 coast of New South Wales in the Australian Museum collection 

 are two from Port Stephens. These are hardly in a condition 

 for certain identification, but have, in all ascertainable points, 

 the features of A. bassanum The myotonies are about ninety in 

 each of them, as against a maximum of only seventy-eight in 

 Kirkaldy's description. But the same holds good of my speci- 

 mens from Port Phillip, many of which have from eighty to 

 ninety. 



LITERATURE. 



Giinther, A. -Fishes, H.M.S. "Challenger." 



Giinther, A.— Fishes, H.M.S. "Alert," 1SS4. 



Kirkaldy, J. W.— A Revision of the Geneva and Species of the Dianelnos- 

 tomidse. Quart. Journ. Micro. Sri., xxxvii.. 1895. 



Willey, A.— On a new Amphioxus from the Louisiade Archipelago. 

 Quart. Journ. Micro. Sci., xxxix.. 1S96-7. 



Benham, W. B.— Heteropleuron hectori, the New Zealand Lancelet. 

 Qtiart. Journ. Micro. Sri., xliv., 1901. 



Herdman, W. A.— Cephalochorda. Camb. Nat. Hist., vii. 



Andrews, —.—An TJndescribed Acraniate— Asymmt Iron lucaya 

 Stud. Johns Hopkins University, v. 



