TASMANIAN- HYDROZOA— Bl^lOOS. 2f^7 



7fa//.>.n..v-s/s .n-ir.hu-i.. Hale, .loun.. Miovo. Sue Vi.-t., ii., 

 1881 ]. 26, pi. xiii., fig. 3 ; /</., Bale, Cat. Austr. 

 Hvdroia Zoophytes, 1884, p. 185, pi. x. tigs. 1, 2 pi. 

 xix tig 32 • /(/., Bale, TraiiH. and Proc. Roy. feoc. Vict., 

 xxiii., 1887, pp. 90, lOl. /'/., Ma.ktannei-Tnn.eretscl.er, 

 Ann.K. K. Hofnius. Wien, v., 1890, p. 279. 

 ]~,l,lo,,lou rosfn,t>n., Alhnan, Hep. Sci. Results "Challenger" 

 ■■ Kxpeil., Zool., vii., 188H, p. 54, pi. xix., tigs. 1-3. 



Halironnr^ls .h'.,a»s. Billard, Ann. Sci. Nat., ^^'^l-;. (9)' ^;;' 

 1907 p 328 ; /</., Billard, Conip. Rendu., cxlvii., 1908, 

 p 940- /./, Billard, Ann. Sci. Nat., Zool., (9), ix., 1909, 

 p' 329- i.?., Billard, IhUJ., (9), xi., 1910, p. 44. ]<l 

 Ritchie, Mem. Austr. Mus., iv., 16, 1911, p. 85o, pi. 

 Ixxxix., tig. 1. Id., Bale, Biological Results "Endeavour, 

 ii., 1, 1914, p. 56. 

 This species was recorded from Tasmania as far back as 

 1872 by Kirchenpauer under the name of A,jhn,^,h,',na 

 avicularig. 



The present specimen is evidently only the terminal portion 

 of a large colony. There is a considerable amount of variation 

 in the length of the hydroclade-bearing mtei'nodes as the 

 following measurements show. 



Diineii^ioiis : — 



Hvdroclade-bearing interiiode (single one), 



•^ 1 ,1 0-45-0-64 mm. 



length 



Hydrociade-bearing iuternode (double one), 



•' , ,1, 0-92-1-15 mm. 



lengtli 



Hydroclade-bearing internode, diameter ... 0-29-0-36 mm. 



Hydroclade internode, length 0-35-0-42 mm. 



Hvdroclade internode, diameter ... ... 012-015 mm. 



IT J i\ ^„ rio,.fi. 0-28-0-29 mm. 



Hydrotheca, oeptli .. ... ^ 



Hydrotheca, diameter at mouth (lateral aspect) 0-26-0-29 mm. 

 Hydrotheca, diameter at mouth (frontal aspect) 0-36-0-38 mm. 



])l-<trll>»ti<ni. Previously recorded from Indian Ocean 



(Lamouioux) ; Hobart, Tasmania; Bass Strait (Kirchen- 

 pauer)- Griffith Point, Portland, Queenscliff, Victoria (Bale); 

 Station' 161, off Port Phillip, Victoria, 38 fathoms (All man) ; 

 Victorian Coast (Marktanner-Turneretscher) ; Station 36, off 



