106 HI I.I.KI1N 82, I Ml'1.1' BTATBfl NATIONAL MUSEUM 



amount of serration of the arms. 1 examined these specimens at the British Museum. 

 They aho* thai this Bpecies has shorter cirri than r A. microdiscus and small and weak 

 proximal pinnuli 



The specimen from Port Molle in the Australian Museum is small with IS arms, 

 which are about 50 mm. long, and the cirri XVIII, 22-24. Together with it there axe 

 some fragments from a larger individual. 



Of the three specimens from Port Curtis one has the centrodorsal large, thick 

 discoidal, with the dorsal pole very slightly concave and 5 mm. in diameter. The cirri 

 arc XV, 50 -53, from 35 to 38 mm. long. There are 35 arms SO mm. long. The IlIBr 

 series are 4(3+4) exteriorly and 2 interiorly, as in the genus Ilimerometra. Another 

 has the centro-dorsaJ discoidal with the nearly flat dorsal pole about 4 mm. in diam- 

 eter. The cirri are XXXV, 46-48, from 35 to 40 mm. long. Series of 4(3+4) are 

 slightly more numerous than usual. The third specimen is small with 20 arms 60 

 nun. long. All the IIBr series are present. The dorsal pole of the centrodorsal is 

 flat, 2.5 mm. in diameter. The cirri are XXIII, 20-22, 13 mm. long. 



The Bpecimen from off Noosa Head has 29 arms, which are about 100 mm. long. 

 The 1 1 Br series nre all 4(3+4). All but one of the IIIBr series are 2. The cirri are 

 XX VI I, 45-47. The color (dry) is fawn-color with a faint purplish cast, the articula- 

 tions being distinctly darker than the segments. The cirri are dull purple, the bases 

 of the cirri and the centrodorsal being pale brownish. 



One of the specimens from oil" Sandon Bluffs has 38 arms nearly 100 nun. long. 

 'I'll, cirri are XXXV, about 54. The second has 36+ arms (several are missing), 

 which are nearly 11)0 nun. long. The cirri are XXX+, 47-53. In both the IIBr 

 series and the IVBr series, when present, are 4(3+4). It is common to have the 

 HI Br series 4(3+4), although 2 seems to be the usual number. The only VBr series 

 noted is 2. In the first specimen the greater part of the arms is light brown, but 

 basally nil the arms are heavily shaded with purple, the articulations in particular 

 being very dark. The cirri basally are dorsally pale brown and ventrally deep purple, 

 but distally the purple becomes very gradually dominant until it includes both sur- 

 In the second the arms are light brown with more or less of a purplish cast; 

 basally three of the postradial series are very deep purple, the other two being lighter. 

 The cirri are light brown basally, becoming purple distally. 



Localities.- Between Fremantle and Geraldton, Western Australia; Endeavour 

 [A. If. Clark, 1914] (8, U. S. N. M., 35174; W. A. M.). 



?Vieinity of Perth. Western Australia; Hamburg west Australian Expedition, 

 1905 [A. II. Clark, 1911] (1, II. M.). 



Western Australia [= ?Vicinity of Perth] [A. H. Clark, 1912; Hartmeyer, 1916]. 



MjSberg's station 1 1 ; 45 miles west southwest of Cape Jaubert, Western Aus- 

 tralia; 22 meters; .Inly 17, 1911 [CJislen, 1919]. 



Broome, Cable Beach; Frances L. S. Clark, September 2, 1929 [II. L. Clark, 

 1938]. 



Broome; hard Band] bottom; II. L. Clark, August and September 1929 [II. L. 

 Clark, 1938]. 



Broome; dredged at various points in 5 I." meters; II. L. Clark, .bine 1932 [II. L. 

 Clark, 1938]. 



