114 Mr. H. J. Carter on new Sponges. 
collection indicates. Thus, too, there is a specimen in the 
British Museum, no. 39, registered 71.6. 5. 1, from Port 
Elizabeth (that is, also im Algoa Bay), South Africa, which in 
general form, structure, and spiculation is almost identical 
with Chalina compressa, but, not having been exposed to the 
action of the surf, still retains the fringes round the vents, and 
presents an amber-brown colour. No. 205 dis, registered 50. 
2.5.4, from the Falkland Islands, and no. 42, registered 71. 
6. 5.1, also from Port Elizabeth, appear to belong to the 
same category. 
Order V. ECHINONEMATA. 
Fam. 1. Ectyonida. 
Group 1. PLURIFORMIA. 
Echinonema vasiplicata, u. sp. 
Vasiform, plicate, stipitate ; wall stout, continuous, mean- 
driniform; margin round. Consistence compact, firm. 
Colour light grey now, ?originally purple. Surface even 
throughout, both outside and in. Vents not obvious. Pores 
probably as usual, in the dermal sarcode tympanizing the 
interstices of the reticulated subdermal tissue. Structure 
fibro-reticulated ; fibre kerato-spiculiferous, echinated, finer on 
the surface than internally. Spicules of three forms, viz. :— 
1, skeletal, acerate, curved, fusiform, pointed at each end, 
smooth, varying much in size, the largest being 62 by 2- 
6000ths inch in its greatest dimensions; 2, echinating, straight, 
clavate, round at the ends, spined throughout, spines recurved, 
longer over the middle than at the ends, 21 by 2-6000ths 
inch in its greatest dimensions, not including the spines; 3, 
thin, setaceous, acuate, about the same length as the skeletal 
spicule, scanty. Size of specimen 43 inches high, 3? inches 
across the brim; cavity 34 inches deep. 
Hab. Marine. 
Loc. Swan-River district ; Freemantle, S.W. Australia. 
Obs. There is a specimen of this kind in the British-Mu- 
seum collection, viz. no. 594, registered 72. 5. 21. 46, also 
labelled “Swan River.” That above described belongs to 
the Bowerbank general collection. 
Trikentrion leve, Crtr. 
This name was proposed for a little digitate branched 
specimen in the British Museum, described and illustra- 
ted, so far as the spiculation goes, in the ‘ Annals’ for 1879 
