ibo 



ENDEAVOUR" SCIENTIFIC RESULTS. 



(\ 



herein described, display the characteristic end- 

 pecuHarity — perhaps 20 per cent, of them being thus 

 a fleeted. 



(ii.) I'he principal acantho- 

 stvles attain a maxi- 

 mum size of 160 X 

 12 ti. 



(iii.) The dermal acantho- 

 styles, owing" to the 

 damaged state of the 

 dermal layer, are not 

 with certainty deter- 

 minable in respect to 

 their maximum size. 

 Referring only to 

 those which exhibit 

 the characteristic 



curvature of form, it 

 may be said that the 

 length varies from 60 

 to about 100 )i, and 

 that the usual size is 

 about 80 X 7 )i. 



Micrusclcres. — 



The chela^ \ary in length 

 from 13 to 25 /(. There is an 

 appreciable difference of form 

 between the larger and smaller ; the former are similar to that 

 shown in the accompanying text-figure, the latter bear a closer 

 resemblance to those which are found in the preceding and 

 two following \arieties. 



f.oc. — Coast of New South Wales, Shoalhaven Bight, 

 15-45 fms. ("Endeavour.") 



Cki:i.i..\ ixcKisTAXS, ('arlci\ :uir. akf.nacka. Carter. 



(Plate xxiii., fig. 3, and fig. 31.) 



1885. Plunwhalichondria arenacea, Carter, Ann. Mag. Nat. 

 Hist. (5), xvi., 1885, p. 367. 



1896. PliinioJialichoudria arcniacea, Dendy, Proc. Roy. Soc. 

 \'ict., viii. (n.s.), 1896, p. 43. 



1901. PluuiohaJichondria australis (pars), Whitelegge, Rec 

 Austr. Mus., iv., 2, 1901, p. 90, pi. xl., fig. 14b. 



Chtlliria aiistnilis, Whitelegge, Poc. cit., p. 90. 



Fig. 30 — C. i>ici-ustans var. 

 pcrrauiosa. a Oxea. b Prin- 

 cii)al acanthostyle. c Dermal 

 acai]thost3'le. d Isochela ar- 

 cuata of the larger kind. 



