SUPPLEMENT. 



Page 15. Rhincalanus nasutus, Gioshr. 

 The form recorded by Th. Scott as / ( '. //'//^x. Urady, is un- 

 questionably the present species. 



Distribution. Scottish coast (Scott). 



Page 18. Paracalanus parvus (Clans). 



. Black Sea (Knrawajew), Gulf of Guinea (Scott). 



Page 21. Pseudocalanus elongatus, Boeck. 



Dint rilm t ion. --Black Sea (Karawajew). 



Page 21. The following species should ho added: 

 Pseudocalanus graeilis, G. O. Sars. 



(Suppl. 1M. I). 



tflH'ci/ir Chitnicfcrs. I<\'ih'. Body of still more slender form than in 

 the typical species, with the anterior division, seen dorsally, narrow oblong in 

 form, greatest width scarcely attaining '/ of the length ; frontal part conspicuously 

 projecting, and, seen laterally, almost angularly curved in the middle. Lateral 

 parts of last segment of metasome obtusely rounded. Urosome very slender. 

 though scarcely exceeding half the length of tbe anterior division. Caudal rami 

 eomparati\ely narrower than in / '. <-l>i<i<tt/<*. and more divergent. Anterior an- 

 tenna- more elongated, reaching. when relieved, to the end of the :>rd caudal 



segment. Logs considerably more slender than in tbe typical species, with l>oth 

 ratni very narrow. Ovisac rather large, rounded oval in form, and somewhat 

 flattened, containing a number of globular, highly pellucid ova. 



Mule resembling that of /'. ('!<>n<i<tlu*. but having the anterior antenna' 

 considerably longer. Last pair of legs of a structure very similar to that in the 

 male of the said species. 



