22)2 "ENDEAVOUR" SCIENTIFIC RESULTS. 



(ii.) The accessory st\li are commonly quite smooth, and 

 are never distinctly spined. They range in length 

 from 55 ^ to very rarely more than 80 ;i, and in dia- 

 meter up to 5 /i ; occasional individuals up to 95 \i in 

 length have been observed. 



(iii.) The auxiliary tylostyli vary in length from less than 

 120 to 355 ]i, but only in extremely rare cases 

 exceed 300//; maximum diameter, 4.5 ji. 



.Microscle res. — 



(i.) Chelae, somewhat scarce, 14 to 2011 long. 



(ii.) Toxa, fairly plentiful, 12 to 132 ^< in length, and 

 rarely slightly more than 2 ;i in diameter. 



Loc. — Coast of South Australia, forty miles west of 

 Kingston, 30 fms. ("Endeavour"). 



(3). Form (t). (PI. xxxiii., hg. 3). 



The specimen is a broken one ; the largest piece of it — the 

 subject of the hgure — measures 210 mm. in length. The 

 primary branches, which appear to have been confined more or 

 less to one plane, are slightly compressed, and measure 

 about 15 mm. broad by 10 mm. thick. The secondary branches 

 usually arise along the lateral borders of the primaries. 



The characteristic surface elevations are closely approxi- 

 mated ; in the sulci between them are the traces of an extremely 

 thin dermal membrane. The colour in alcohol is light greyish 

 brown. 



Megascleres. — 



(i.) The principal styli range in length from 120 to 365 ]i ; 

 the stoutest are 16/1 in diameter. 



(ii.) The accessory styli are commonly quite smooth and 

 are never distinctly spined. They vary in length 

 from 50 to 85 ]i, and up to 5 ;( in diameter. 



(iii.) The auxiliary tylostyli vary in length from less than 

 no ]i to rarely more than 280 /i ; the largest observed 

 measured 320 x 4.5 ;<• 1 hey occur in considerable 

 abundance. 



Microscle res. — 



(i.) ChelcE, rather scarce, 16 to uj/i long. 



(ii.) Toxa abundant, 25 to 172 // in length, and up to 

 2 ]i in diameter. 



Loc. — Coast of South Australia, forty miles west of King- 

 ston, 30 fms. ("Endeavour"). 



