830 " THETIS " SCIENTIFIC RESULTS. 



Antarctic Seas as Cryptolaria conferta, AllrnanC?),^^ the dimen- 

 sions of whicli are given above, belongs not to that species but 

 to C. crassicaulis. 



The resemblance of the habit of these Australian specimens to 

 that of Cryptolaria pulchella led me to examine Allman's type of 

 the latter, a fragment of which was kindly lent me by Mr. R. 

 Kirkpatrick, of the British Museum. Allman's figures of this 

 species in the " Challenger " Re))orts are utterly misleading, for 

 they indicate a tubular hydrotheca of constant width throughout 

 all its length, with a distinctly flaring margin. The fragment of 

 Allman's type which I have examined, i)ossessed hydrothecse 

 without flaring margins, wide at the mouth, and diminishing in 

 calibre very markedly towards the base, where they are very 

 narrow. The hydi-othecee, indeed, are similar in shape to those 

 of C. crassicaulis, though they are less in size. They show that 

 C. pulchella is distinct from C. conferta, var. australis. 



Localities. — Station 40, off Wata Mooli, three miles from shore; 

 depth, .52 fathoms; bottom, sand and boulders; 12th March, 

 1898. Several young colonies growing on a Polyzoon. — Station 

 42, off Wata Mooli, six to eight and a half miles from shore ; 

 depth, 70 to 78 fathoms; bottom, coarse sand; 13th March, 1898. 

 Many fine colonies. 



Distribution. — Cryptolaria conferta has been recorded from 

 the Atlantic Ocean by several investigators ; from the Gulf of 

 Mexico and the West Indies to the Azores (Pictet and Bedot, 

 1900), and the Bay of Biscay (Billard, 1907 ; Browne, 1907). I 

 am aware of only two records from the Pacific Ocean ; from the 

 Eastern Pacific — -off the west coast of Central America (Clarke, 

 1894), and from the Western Pacific — fi'om Ternate in the 

 Molucca Islands (Campenhausen, 1896). The species is new to 

 Australia Seas. 



Ty2oe Specimens of variety. — In the Australian Museum, 

 Sydney. 



CRYPTOLARIA CRASSICAULIS, Allman. 



var. DIMORPHAl^ var. nov. 



(Plate Ixxxvii., figs. 5, 6 ; c/! fig. 4.) 



Cryptolaria crassicaulis, Allman, Rep. Sci. Res. " Challenger," 

 Exped., Zool., xxiii., Hydroida, Part ii., 1888, p. 41, pi. xix., 

 figs. 3, 3ct. 



" Hartlaub— Voyage du S.Y. "Belgica," 1897-99, Zool., Hydroiden, 

 1904, p. 13, pi. ii., fig. 1. 



^ ^ 8lfiop(pos, of two forms. 



