RED SEA AND INDIAN OCEAN COPEPODA. 423 



Paracalanus aculeatus, Giesb. Ectinosoma atlanticum 



„ parvus (Claus). (B. & E.) 



Calocalanus pavo, Dana ,, rosea (Dana)< 



,, plumosus (Claus). Euterpe acutifrons (Dana). 



Acrocalanus gibber, Giesb. Setella gracilis, Dana. 



Clausocalanus furcatus Oncea venusia, Phillppi. 



(Brady). ,, conifer a, Giesb. 

 Centropages brachiatus (Dana). Cory casus venustus, Dana. 

 „ orsinii, Giesb. ,, obtusus, Dana. 



,, furcatus (Dana). „ speciosus, Dana. 



Temora discaiidata, Giesb. ,, gibbulus, Giesb. 



Haloptiluslongicornis{G\s,u8>). ,, robustus, Giesb. 

 Calanopia elliptica (Dana). „ concinnus, Dana. 



* Pontellopsis krdmeri (Giesb). „ lubbocki, Giesb, 



Acartia erythraea, Giesb. Concea rapax, Giesb. 



Tortanus gracilis, Brady. HalocyprU aculeata, T. Scott. 

 Oithona nana, Giesb. 



* Pontellopsis krdmeri (Giesbrecht) . Plate I., figs. 7 

 and 8 ; Plate II., figs. 1 and 2. 



1896, Monops krameri. Giesb. Zool. Jahrb. Syst., vol. 9, p. 323, 

 t. 5, figs. 1 and 2, 



The occurrence of this species in Fortescue Strait is 

 particularly interesting. Tlie species lias liitherto only 

 been known to occur in the Red Sea, where it was dis- 

 covered by Dr. Giesbrecht in plankton collected with the 

 aid of a ship's pump by Dr. Kramer, when sailing up in 

 1895. Only the female was found. One male and one 

 female were obtained from Dr. Jameson's collection. 



Length of female, 1'98 mm. Length of male, 1'6 mm. 

 The female is easily distinguished from any of the other 

 Pontellopsis by the right caudal furca being about twice 

 as long and broad as the left furca. The fifth pair of 

 feet are also very distinct. The male, in general 



