PORIFERA. II. 97 



the grown sponge. They are very small and fine, with five teeth in either end; those of the larger 

 end are narrow and long, they are thus more than one third of the length of the shaft, while in the 

 ancorae of the grown sponge the teeth are only about one fifth of the whole length. At the larger 

 end a narrow ala is found on either side. This ancora is very small, of a length of only abont o-oi8 mm . 

 In the embryos where it is found, it occurs abundantly. 



This species agrees so exactly with Carter's description and figures, that there can be no 

 doubt of the identity. The figure of the characteristic sigma agrees completely, and the measure given 

 by Carter (.39 by 1 — 6000th. inch », which is about corresponding to the length o-i64 mm and the thick- 

 ness o - oo4 mm , corresponds also. Finally, the locality is the same. As before mentioned, it may easily 

 be explained that Carter has not found the small sigma, as it occurs only in the points of the 

 branches. Two of Carter's statements do not agree with what I have found; in the first place he 

 states that the styli are larger in the fibres of the stems than in the small fibres, while I have found 

 no difference in size; this fact, however, is scarcely of any importance; but then he gives the size of 

 the styli as < 100 by 1 — 1800th inch. , which is about corresponding to a length of i"4 mm and a thick- 

 ness of o-oi4 ,mn ; this is a little thinner than, and twice the length of, the measures I have found. I 

 cannot but think, however, that an error has slipped in in the measuring; the mentioned styli would 

 also be uncommonly long and thin. Carter established the species as abyssicola vax. corticocancellala; 

 it is, however, a very distinct species; Ridley and Dendy, in Chall. Monaxonida, also call the attention 

 to the fact that it must surely be an independent species. 



The figures by Anna tier Hansen quoted above may surely be referred to this species. 



Locality: The Ingolf, station 143, 62° 58' Lat. N., f 09' Long. W., depth 388 fathoms (bottom 

 temperature -f-o°4C); 6o° 19' Lat. N., 5° 39' Long. W., depth 620 fathoms (bottom temperature -^o°i5C) 

 (Ad. Jensen, the cruise of the «Michael Sars>, 1902). Of the stations the former is situated a little to 

 the north, the latter a little to the south, of the Faroe Islands. 



Geogr. distr. The specimen described by Carter from the « Porcupine has also been taken 

 near the Faroe Islands, at 6o° 14' Lat. N., 6° 17' Long. W., depth 632 fathoms (bottom temperature 

 -=- o°8 C). The species is thus only known with certainty from this limited locality. As mentioned 

 above, it has also been taken by the Norwegian North-Atlantic Expedition; as among the enumerated 

 stations one is also found situated north of the Faroe Islands, it may possibly have been taken there. 

 The bathymetrical range is 38S— 632 fathoms, and the species is only known from the cold area. 



6. C. oxeata n. sp. 

 PI. I, Fig. 1. PL III, Fig. 10. PL XIII, Fig. 1 a— f. 



1885. Cladorhiza abyssicola Armauer Hansen, The Norwegian North-Atlantic Exp. XIII, Spongiadae, 



partim, PL VII, Fig. 9. 

 1887. Cladorhiza abyssicola Fristedt, Vega Exp. vetensk. Iaktt. IV, 455. 



Irregularly dendritically branched from the base; the branchlets, especially on the principal axes, 

 sometimes coalesced to more or less zving-shaped parts. The sponge attached below. The skeleton is of 



The Ingolf-Expedition VI. 2. 3 



