790 MB. D. J, scoUEFiELD ON THE [June 15, 



in the paper previously quoted, records the following species from 

 Spitsbergen : — 



Kolpoda iucullus (^? Oxytriclia pellionella) ; StylonicMa pustalata ; 

 Trichodina ientaculaia ( = ? Gyrocoiis o.vyura); Vorticella micro- 

 stoma ; and Moaas. 



Gastroteicha. 



The few examples seen belonging to this group were all re- 

 preseutatives of the genus Ghcetonotus, but the species was not 

 determined in any case. 



EOTIFERA. 



This important group was carefully studied by Mr. D. Brvce, 

 who has given so much attention to the subject of the moss-dwelling 

 Rotifers. It will be seen from his report following this paper that 

 twenty-six species were observed, half of them belonging to the 

 genus Callidina. One species is described for the first time, 

 although it is not peculiar to Spitsbergen, having been previously 

 found in England. 



Nematoda. 



The Spitsbergen mosses appear to offer very favourable con- 

 ditions for the existence of JN'ematoids, as specimens of these 

 animals were found, usually abundantly, in nearly all the mosses 

 examined. No attempt vAas made, however, to determine the 

 species. Of the four species seen by Dr. Goes, as previously 

 mentioned, one was thought by him to be new, whilst the others 

 came nearest to Anguillida maeronata, A. ecauda, and Ambh/ura 

 serpentulus respectively. Ehrenberg's two species were Anguillida 

 lonfficauda and A. brevicauda. 



CH;ET0P0DA. 



Several of the collections contained numbers of Cheetopod worms, 

 but no special attention was given to them. 



Tardigrada. 



When first examined the Spitsbergen mosses contained a mode- 

 rate number of Water-bears, but afterwards they almost entirely 

 disappeared. Unfortunately proper attention was not given to 

 these animals when tliey were most abundant, and the notes about 

 two or three of the species are therefore very imperfect. The 

 following is a list of the forms seen. 



-"o 



Macrobiotus hufelandii, 0. Schultze. 



This well-known species was by far the most abundant, occurring 

 in nearly all the mosses examined. Examples in all stages of 

 development were seen (-j-g-y"- jV')' ^^^ occasionally eggs. The 

 latter were covei'ed with little conical projections (sharp-pointed, 

 not blunt as figured by L. Plate, " Beitriige zur Naturgeschichte 

 der Tardigraden,'' Zool. Jahrbiicher, Bd. iii. Morph. Abt. Taf. xxii. 



