866 " THETIS " SCIENTIFIC RESULTS. 



hydrothecse, are more dumpy ; the anterior tooth is broader and 

 more strongly developed, and the supracalycine sarcothecse have 

 frequently a very wide aperture (see table of dimensions). 



Remarks. — The synonymy of this species, confounded from 

 early times by erroneous identification with Phivndaria brachiata, 

 Lamarck, has been elucidated by the recent examination of the 

 type specimens of these two species, undertaken by Dr. Billard. 

 This makes necessary the disappearance of Bale's Aglaophenia 

 viacrocarpa which is a synonym. 



Localities. — Station 44, off Coogee, five to six miles from shore; 

 depth, 49 to 50 fathoms; bottom, fine sand ; 15th March, 1898 ; 

 small fragment of colony. Station 47, off Bulgo, six to eight and 

 a half miles from shore ; depth, 63 to 57 fathoms ; bottom, mud 

 and abattoir refuse ; 16th March, 1898; fragment of very large 

 colony. Station 48, off Wollongong, seven to eight miles fi-om 

 shore ; depth, 55 to 56 fathoms ; bottom, sand and mud to rock ; 

 18th March, 1898 ; many fragments, with corbulse. Station 55, 

 off Crookhaven River, one mile from shore; depth, 15 to 11 

 fathoms ; bottom, sand to rock ; 20tli March, 1898 ; fragment. 

 Southern Coast, N. S. Wales ; one fine colony. 



Aglaophenia crucialis has been obtained only from Australian 

 seas, from which indefinite locality Lamarck recorded it. Bale's 

 record is from " off Port Jackson " (1888, p. 792). 



AGLAOPHENIA DIVARICATA (Busk). 



Plumularia divaricata, Busk, Voy. " Rattlesnake," i., 1852, 

 p. 398. 



Plumularia ramosa, Busk, Op. cit., p. 398. 



Aglaophenia ramosa, Kirchenpauer, Abh, ver. Hamburg, v., 1872, 

 p. 38, pis. i. and ii., fig. 17. 



Aglaophenia McCoyi, Bale, Journ. Micro. Soc. Vict., ii., 1882, 

 p. 36, pi. xiv., fig. 2. 



Lytocarpus ramosus, Allman, Journ. Linn. Soc, Zool., xix., 1886, 

 p. 154, pi. XXV., figs. 1-3. 



Aglaophenia divaricata, Kirchenpauer, Op. cit., p. 26. Id., Bale, 

 Cat. Austr. Hydroid Zoophytes, 1884, p. 162, pi. xv., tigs. 

 7, 8, pi. xvii., figs. 6, 7. Id., Billard, Compte Rendu Acad. 

 Sci., cxlviii., 1909, p. 368. 



Station 54, 



The collection contains only a young colony, and a fragment 

 of a larger one, neither of which bear corbulae. Each hydroclade 



