86 DISCOVERY REPORTS 



Cleodora sulcata. Recorded at four of the twenty stations. No doubt less common in 

 sub-Antarctic than in Antarctic water. 



Lhnacina balea. Occurs at eleven out of the twenty stations. Massy (1932) gives its 

 distribution as the "temperate zones between Arctic and Antarctic and circumtropical 

 zone". 



Spongiobranchaea australis. Occurs at five out of the twenty stations. This is a fairly 

 high proportion. 



Dimophyes arctica. This species occurs in large numbers only in the coldest Antarctic 

 water. However, it is recorded at one of our twenty stations, and I am informed by 

 Capt. Totton that it occurs quite commonly at various depths throughout the Atlantic, 

 and there are instances of its occurrence in tropical and sub-tropical surface waters. 

 The latter record can hardly be attributed to accidental straying into warmer waters. 



O illy juvenile stages apparently common in sub- Antarctic water 

 Calanus propinquus. At least one of the eight stations has an example of this species 

 and at six of the eight there are varying numbers of young copepods which appear to 

 be C. propinquus. 



Species probably belonging only to the Antarctic water, but which occasionally 



stray into sub-Antarctic water 



Calanus acutus. Several occurred at one of the eight stations, but it is probably rare 

 everywhere north of the convergence. 



Metridia gerlachei. One specimen was recorded at two of the eight stations, but it is 

 really typical of the colder Antarctic water. 



Euphausia frigida. Two doubtful records in the twenty stations. This species is not 

 usually taken anywhere to the north of the convergence. 



Euphausia triacantha. One example recorded in the twenty stations. Not uncommon 

 in stations only a short distance north of the convergence. 



Limacina helicina. Recorded at two of the twenty stations, but like Metridia is found 

 mostly in the colder Antarctic water. 



Salpa fusiformis f. aspera. Occurs at one of the twenty stations. It is said to have a 

 very wide distribution (Ihle, 19 12), but it seems commonest in Antarctic water. 



Among the organisms of which only the genus is identified, Tomopteris, Pareuchaeta, 

 Candacia and Thysanoessa commonly occur in sub-Antarctic water, and Cyllopus and 

 Euchirella occur once each. The Antarctic species which do not occur at these stations 

 are Diphyes antarctica, Pyrostephos vanhoffeni, Vanadis antarctica, Auricularia ant- 

 arctica, Haloptilus ocellatus, Eusirus antarcticus, Euphausia superba, E. crystallorophias, 

 Clione antarctica, Solmundella sp., Antarctomysis sp., and Haloptilus sp. 



These results may need some revision if a larger body of material is taken into con- 

 sideration, but they are enough to show that some of the common Antarctic species are 



