228 



190 



of uropods is deeply and sparsely denticulate and the inner margin bears 

 sparse (5-7) strong spines. The telson is almost square, slightly broadened 

 distally, with a bulging distal margin. 



Distribution: Waters of the Guinean and Benguelan currents of the 

 Atlantic Ocean and waters of the equatorial currents of the Indian Ocean. 

 The depth of occurrence is not given. 



This species is absent in our collections. 



3. Ctenoscina macrocarpa (Chevreux, 1905) (Fig. 96) 



Chevreux, 1905: 2 {Acanthoscina); Wagler, 1926: 439; Bristein and 

 Vinogradov, 1963: 82. 



Length of sexually mature specimens about 7 mm. 



Backwardly directed, flat dorsal denticles are present on all the 

 somites of the pereon and pleon and on urosomite I, their size increasing 

 from pereon somite I to VII and then decreasing from pleon somite I 

 to III; the denticle on the urosomite is relatively small. The head is 

 broad, with an almost vertical frons. The eyes are well noticeable, with 

 forwardly directed short spines located below them and one long unpaired 

 spine situated above the labrum. 



Antennae I are long, roughly equal in length to the pereon and pleon 

 together. Antennae II in the female are reduced to small spines; in the 



190 



Fig. 96. Ctenoscina macrocarpa (Chevreux), female. 



