46 



O. VON LiNSTOW : A New Nematode. [VOL. I, 1907.] 



proportion of 31 to 29. One branch of the uterus stretches for- 

 wards, the other backwards. Two eggs are produced, each measur- 

 ing 078 mm. in length and 0-047 mm. in transverse diameter. 

 The thirty-three known species of Oncholaimus live in the sea. 



Fig. 2. — Anterior extremity, dorsal view. 



{Oncholaimus indiciis was found in large numbers in the habitat 

 indicated during December, January and March. In the first of these 

 months the water of the pool in which it occurred contained 1-23 per 

 cent, of soluble solids ; in January the salinity had increased consider- 

 ably owing to evaporation ; while in March the percentage of soluble 

 soUds was 2-022. — N. Annandale.] 



