296 RECORDS OF THE AUSTRALIAN MUSEUM. 



Serti(h(rlii n.-^iifoides, Pallas, Elenclms Zoopliytorum, 1766, p. 



132. 

 Di/iiKiiieini nperciilKtii, Esper, Die Pflaiizentliiere, iii., 1788-1830, 



p. 191. 

 Niijelhtfitniiii iisiiedidf'^, Oken, Lelirbncli der Naturgescliiclite, 



pt. 3, 1815, p. 93. 

 Aiiipliislx'tlu (iperciiliifii, L. Agassiz, Coiit. Nat. Hist. U.S., iv., 



186-2, p. 355. 

 Dilinoiii'Hti fii^ririilntd, Kii'C'lieiipaiier, Neue Sei'tulai'ideii, lS63, 



p. vi: 



Sertnliin'ii rr/i/Zx, Allniaii, Journ. Limi. Soc, xix., l8lSo, p. 

 139, pi. xiv., Hgs. 1-2. 

 This widely distributed epizoic species is represented in the 

 collection by several specimens, wliicli occur on tlie bare 

 horny axis of an Alcyonarian. Tiiey ai'e tirnily attached by a 

 hydrorhiza in the form of a feltwork. 



JJii)ie)isioii,^ : — 



Hydrorhiza, diameter ... ... ... 0'22-028 mm. 



Stem, diameter... ... ... ... 022-0-26 mm. 



Hydrotlieca, length of external profile ... 0"36-0"38 mm. 



Hydrotheca, diameter ... ... ... 0'12-014' mm. 



Gonangium, length ... ... ... r53-l'57 mm. 



Gonangiuni, diameter ... ... ... 0"52-0'6J- mm. 



Distrihntioii. — Pi'eviously recoi'ded from Arctic Atlantic 

 (Bonnevie) ; Denmark (Winther); British Coasts (Hincks) ; 

 Belgium (Van Beneden) ; Azores (Aliman) ; Africa (Busk, 

 Warren) ; Australia (Bale, Bartlett) ; New Zealand (Thom- 

 son, AUmau) ; Straits of Magellan (Nutting). 



Family PLUMULARID.^. 



Genus Hai,icornopsis, Jiale. 



HaI.K'ORNOPSIS EliEOANS (Livtiarck). 



I'l iiiiinliiriii rlrijiiii^, lianiai-(;k, .Aiiiin. sans V^ert., ii., 1816, p. 129. 



AijI'iopln'ti'ut eli'(ji(n^, Laiuouroux, Hist. Polyp. Cor. Flex., 1816, 

 p. 169; /(/., Lamouroux, Fiicyclop. Mcth., Zooj)li., 1824, 

 p. 16. 



A'll'iiijilii-iiiii (iririiliin'ti, Kirchenpauer, Abli. Nat. Ver. llainburg, 

 v., 1872, p. 33, pis. i. and iii., fig. 3. 



