SOME ROTIFERA FROM SPITSBERGEN. 313 



Monostyla cornuta (Miiller). 

 Monostyla lunaris Ehrbg. 

 Mytilina ventralis brevispina (Ehrenberg). 

 Lepadella patella (Miiller). 



The following Bdelloids revived : 



Macrotrachda hahita (Bryce). 

 Macrotrachela Ehrenbergii (Janson). 

 Adineta vaga (Davis). 

 Adineta hurhata Janson. 



Dead specimens of a small species of Habrotrocba, quite 

 unidentifiable, were numerous, and at least two other species 

 did not revive. Many water-bears, eel-worms, and a few Clado- 

 cera were seen, but except one water-bear, all were hopelessly 

 dead. 



L 3 and 16. These gatherings proved less encouraging, as 

 none of the animals which they had sheltered were revived. In 

 L 16 were a few Rhizopod tests. 



L 4 and 5. In these gatherings were found very few rotifers ; 

 only three species revived : 



Adineta gracilis Janson. 

 Macrotrachela multispinosa Thompson. 

 Habrotrocha constricta (Dujardin). 



L 17. In addition to the first of these three species this moss 

 produced : 



Adineta barbata Janson. 

 Macrotrachela habita (Bryce). 



L 14. In the washings from this moss, at least three species 

 of rotifers could be distinguished, but as none of the specimens 

 revived, none could be identified. There were also present a 

 few eel-worms, many diatoms, and a multitude of water-bears, 

 apparently of the genus Macrobiotus. When the moss had been 

 soaked for two days, five water-bears were found to have revived. 



L 18. In the washings from this gathering, I found no trace 

 of Rotifera. Dead eel-worms were moderately numerous and 

 some few diatoms were observed. The absence of rotifers was 



