VEGA-EXPEDITIONENS VETENSKAPLIGA ARBETEN. 419 
(33—54 V.); Lat. 71? 39', Long. 157” 15 E., depth 10 fath. (56 V.y; 
Cape Schelagskoi, depth 12 fath. (98 V.); Pitlekai, depth 15 fath. 
(1006 V.:); two Engl. miles north from Pitlekai, depth 12 fath. 
(1016 V); Jugor schar, depth 10—14 fath. (138 N.: 8) 
V. Renierine&e 0, 5. 
Genus Reniera Nardo. 
Reniera cinerea Grant (0. 8.) 
Isodictya cinerea, Bowerbank, Mon. Brit. Spong., II, pag. 274, IIT, Plate 48, 
fig. 1—5. 
Only one specimen was obtained of this species. It thickly 
inerusts a Corallinece, Lithothamnium polymorphum, and is fur- 
nished with one slightly elevated osculum. The specimen is 
small, the greatest diameter not exceeding 20 mm, the smallest 
about 10 mm, and the thickness 5 mm. 
The sponge agrees well with specimens obtained from the 
west-coast of Sweden, in external shape as well as in size of 
spicules. The colour is yellow. 
Habitat. Mossel Bay, depth 9—12 fathoms (54 Sp.) 
Reniera tubulosa n. sp. 
Plate 24, fig. 1. 
Of this new species there are two specimens, both obtained 
during the arctic expedition 1872—1873. The larger specimen 
thickly incrusts a Lithothanmium and is furnished with two 
large tubes, in the points of which the oscula are situated. The 
length of this specimen is 60 mm, the breadth about 30 mm, and 
the heighest tube 30 mm. The diameter of the rounded tube- 
opening is 6 mm. The smaller specimen does not incrust, but 
grows freely, rounded and furnished with three not elevated 
oscula. The surface is smooth, abundantly covered with fine 
orains of sand. The consistency is very soft and fragile. 
