2SO DISCOVERY REPORTS 



Tomopteris krampi 

 (Text-fig. 47, Table 25) 

 T. krampi has not previously been reported from the South Atlantic Ocean. It varies in length from 

 9 to 26 mm. and all nets could normally catch it. The few records may be due to the small number of 

 N 70 nets hauled north of the Sub-Tropical Convergence. The species is evidently restricted in its 

 distribution in the South Atlantic by this boundary; none of numerous nets fished to the south 



collected it. 



In the Sub-Tropical Zone, T. krampi was collected in South Atlantic Central Water at St. 2083, 

 in Antarctic Intermediate Water at Sts. 673, 2081 and 1604 and in either of these waters at Sts. 89 



Table 25. Occurrence of Tomopteris krampi 



Previous records. Wesenberg-Lund (1936) and Stop-Bowitz (1948) reported T. krampi from the 

 North Atlantic. Friedrich (1950c) reports T. krampi from the 'Meteor' Expedition, but gives no 

 details of locality and it may have been collected at stations in the North Atlantic Ocean. 



Tomopteris kempi 



(Text-fig. 47) 



The only locality in the world at which T. kempi has been collected is 'Discovery' St. 4, from 10 



to o m. with an N 100 H net, seven specimens (Monro, 1930). The hydrological position of St. 4 



is uncertain because it was made very close to the Sub-Tropical Convergence. 



It is remarkable that T. kempi has not been found again ; it may either have been missed by ex- 

 peditions and is really widespread in distribution, or is an isolated species. 



Tomopteris elegans 

 (Text-fig. 48, Table 26) 

 T. elegans was collected at sixteen stations north of the Sub-Tropical Convergence and is evidently 

 restricted in its southerly distribution at this boundary. Although this species rarely measures more 

 than 7 mm. long it was collected only twice by an N 70 net whereas the larger TYF caught it fourteen 

 times. It is possible, therefore, that although often missed by the smaller nets, it occurs in sufficient 

 abundance for the larger nets to collect it and the records obtained may not reflect the real intensity 

 of its distribution. The specimen from St. 716 is the only one collected south of this boundary and 

 because no others were caught there I presume this to be an anomaly. 



In the Sub-Tropical Zone T. elegans was caught in South Atlantic Central Water at Sts. 247, 270, 

 2028 and 2030, and in either South Atlantic Central Water or Antarctic Intermediate Water at 

 St. 2040. At Sts. 677 and 2632 the nets were hauled from considerable depths and the water masses 

 in which the specimens were collected are uncertain. 



