OOPKl'ODA. 7 



typically Antarctic species ever find their way northwards by way of the deep Atlantic 

 trough, but there is little evidence of it in the many collections made by the ' Gauss ' 

 throughout its Atlantic traverse. A certain nurntwr of species which arc ubiquitous, 

 such as Oithona similis, some species of Onoea, Ilnloptilwt hngicornui, Gaidiu* 

 tenuispinus and major, and Gaetantu (armiger, and possibly caudani), extend from the 

 Faroe Channel to the southern ocean ; but so far as the evidence at present goes, 

 the Antarctic Copepod fauna is distinct from that of the Arctic seas, and the species 

 which are typical of this region, and most numerous, do not extend far into the 

 Southern Atlantic. As no observations have been made of the Copepod fauna of the 

 deep water of the Indian Ocean, it is quite possible that Antarctic species may I war a 

 considerable extension northwards in this direction. 



It is curious that no great number of J/arpicticidse appear in the collections of the 

 'Discovery,' only three examples all told of Harj*icticu# furcifei; which is somewhat 

 different from any Ifarpaciicu* of the northern hemisphere ; and only five arc descriled 

 from the 'Belgica' collection by Dr. Giesbrecht, two of which (//. brevicornis, II. cMifer), 

 are identical with northern species. A fair number of species occur in the ' Gauss ' 

 collection, but these have not yet been examined. 



The paucity in numbers of the Ifarpactictdse in the ' Discovery ' captures is no 

 douUt due to the mode of collection. 



II. 



LlST OF COPEPODS IN THE 'DISCOVERY* COLLECTION. 



Kitcfurt't nniartlifa. 



limiiu. 

 Mttridui gerlathri. 



prinetpt. 

 Culanut of ut us. 



propinqttvs. 



tonstu. 



timilliiiiii.i. 

 Ctenotalanus ran at. 

 Oithona similit. 



friffida. 

 Oncta etirvata. 



Mirrocalanu* piuilliu. 



aniartlieum. 

 Xantkacalanut antarftifii*. 



Harpof tints furnfer. 



Paralabidottra hadgtoni. 

 Rhintalantu grandix 

 Clatuotalantu areuiforni*. 

 Haloptilus ocfllatu*. 

 FarotUa aniarclifa. 

 OatUmtu antarrtieut. 

 Hftrrorrhabdu* longiforni*. 



CALANUS (LEACH). 



The species first described by Brady as Calantu propinquu* has been subsequently 

 described by Giesbrecht, who now concludes ('Belgica' report, p. 16) that the copepod 

 described by himself in 1892 as C. propinquus from the S.W. Atlantic, between 37 and 

 52 S., is not this species, but one closely resembling it, to which he gives the name 



