584 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



Remarks. This species is very closely related to C. tasmaniae from Tasmania 

 and to C. benhami and C. novae zealandiae from New Zealand. It is somewhat less 

 closely related to the South African C. wahlbergii, and still more distantly to C. 

 japonica, C. pinguis, and C. solaster of southern Japan. The curiously pointed axil- 

 laries so characteristic of C. trichoptera are also seen in C. japonica and C. pinguis, and 

 sometimes also in C. solaster. It is not closely related to any of the other species of 

 the subgenus Cenolia. 



Localities. Cape Hawke, New South Wales; 46-51 meters [A. H. Clark, 1911] 

 (2, U.S.N.M., 36151; Austr. M.). 



Broughton island, near Port Stephens, New South Wales (about lat. 32 40' S.) 

 [A. H. Clark, 1911] (5, U.S.N.M., 35060; Austr. M.). 



Watsons Bay, Port Jackson, New South Wales [A. H. Clark, 1911] (5, U.S.N.M., 

 34967; Austr. M.). 



Bottle and Glass Rocks, Port Jackson [A. H. Clark, 1911] (2 U.S.N.M., 35069; 

 Austr. M.). 



Challenger; Port Jackson; 18-22 meters [P. H. Carpenter, 1888; A. H. Clark, 

 1913] (1, B. M.). 



Port Jackson [Whitelegge, 1889]. Same [A. H. Clark, 1911] (9 U.S.N.M., 17877, 

 35059, 35066; Austr. M.). Same (4, M. C. Z., 38, 211). PI. 3, fig. 4. 



Port Jackson; shallow water, under stones; Dr. Th. Mortensen, February 27, 

 1915 (8). PI. 74, fig. 203. 



Bass Strait, between Australia and Tasmania; about 73 meters; 1915 (1 M. C. Z., 

 727). 



Western Port (just east of Port Phillip), Victoria (3, M. C. Z., 504, 505). 



Port Phillip, Victoria; J. Bracebridge Wilson [Bell, 1888; A. H. Clark, 1911, 

 1913] (2, B. M.). 



Port Phillip; outer stations of the Port Phillip Biological Survey, and outside the 

 Heads; J. Bracebridge Wilson [P. H. Carpenter, 1888, 1890]. 



King Georges Sound (or Port), Western Australia; MM. Quoy and Gaimard, 

 1829 [J. Miiller, 1846, 1849; Dujardin and Hup<, 1862; P. H. Carpenter, 1877, 1879, 

 1883, 1888; Bell, 1882; A. H. Clark, 1911, 1912, 1918] (1, P. M.). 



Hamburg southwest Australia expedition station 56; Koombana Bay, 6-7 miles 

 southwest of Bunbury, Western Australia; 14.5-18 meters; bottom rocky, with a 

 few plantlike organisms; July 28, 1905 [A. H. Clark, 1911, 1912; Hartmeyer, 1916] 

 (2, Berl. M., 5960). 



Australia [A. H. Clark, 1911] (1, U.S.N.M., 35016). 



No locality [A. H. Clark, 1911, 1913] (2. B. M.). 



Geographical range. Southern coasts of Australia northward to Cape Hawke, 

 New South Wales, and Bunbury, Western Australia. 



Bathymetrical range. From the shore line down to 73 meters. The average of 

 4 records is 34 meters. 



Occurrence. Whitelegge says that this species is common under stones at low 

 water at Watsons Bay, Port Jackson. 



Remarks. Bell wrote that this is obviously a very abundant species at Port 

 Phillip. He said that he looked forward with interest to the arrival of fully grown 



