66 



MR. H. J. CARTER ON A COLLECTION OF 



Hah. Growing on shell-detritus, which becomes incorporated 

 with the base of the sponge. 

 Loc. King Island. 



Obs. The generally horizontal and granulated surface, together 

 with the presence of the "round holes" or vents, distinguishes 

 this variety from D. ramoglomerata. It occurs in England, as I 

 learnt from a specimen in the Bowerbank Collection at the 

 British Museum, obtained from the coast of Suffolk, and pre- 

 sented by Dr. \\ . B. Clarke to Dr. Bowerbank ; for which I 

 have already suggested the varietal term above mentioned (Ann. 

 & Mag. Nat. Hist. 5th ser. vol. vii. p. 376, 1881). 



Order IV. BHAPHIDONEMATA. 



Chalina oculata, var. fibrosa, nov. 



This consists of a large mass of branches uniting during their 

 growth upwards, and becoming more or less expanded at the 

 dichotomous extremities. The branches are solid and osculiferous 

 on the surface ; in short, the whole mass, with the exception of 

 the fibrous structure terminating superficially in minute aculea- 

 tions, which replaces the fine dermal reticulation in the typical 

 form of Chalina oculata, is the same as in that species. Con- 

 sistence firm. Colour brown. Size of specimen, which is rather 

 compressed, about 1 foot long, 8 inches high, and 5 inches thick. 



Loc. King Island. 



Chalina spintfera, n. sp. ? (Plate V. figs. 1 & 2.) 



This is a small specimen, being not more than 2 inches high, 

 indeed a mere fragment, but, from its solid branches, prickly 

 aculeations, and the remains of the purple colour common to 

 these Chalina?, it evidently belongs to the Spinifera, the fourth 

 group of my Khaphidoncmata, Ann. & Mag. Nat. Hist. 4th ser. 

 vol. xvi. p. 194 (1875). 



Order V. EC1IINONEMATA. 

 DlOTT OOYLIKDBTTS EI8PIDU8, Jiowcrb. 



This is a well-preserved specimen, showing the dichotomous 

 and setiferous branches rising from a single hard stem, together 

 with the usual spicular and microscopic structure which charac- 



