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border of the carapace as in Nephr. Sibogae. Measured just outward of the lateral carinae, 

 the hinder edge of the cervical groove proves to be 20 mm. distant from the upper orbital 

 margin and 14 mm. from the posterior border of the carapace. The post-antennal spine is 

 large like in Ncphr. Sibogae and reaches probably just bevond the eye-peduncles: it remained 

 uncertain because the extremity of the left is broken off, while the right spine is still more 

 mutilated. Just behind and below it one observes the hepatic spine which is somewhat directed 

 inward. There is also a small spine at the upper end of the hepatic groove; of the two spines 

 situated between this groove and the anterior border of the carapace, the posterior is twice as 

 large as the anterior and two smaller spinules stand just before it. The upper surface of the 

 carapace is covered, between the outstanding lateral carinae and the post-antennal and hepatic 

 spines, with many small spinules of different si ze, which are more crowded and 

 somewhat larger posteriorly than anteriorly; a few, 4 or 5, very small spinules are seen on the 

 interspace between the lateral carinae. Behind the cervical groove the carapace is, like in the 

 other species, longitudinally traversed by 7 ridges, 3 on each side of the median ridge which 

 is in fact doublé, presenting two longitudinal rows each of 6 spines, that decrease in length 

 backward. The i st and the 2 nd ridge, on each side of the median ridge, are spinulose, the 

 [ st presenting about a dozen spinules, the 2 nd still more, though smaller; the 3 rd ridge is covered 

 with acute granules and carries a small sharp spine at the anterior end. The cardiac and 

 branchial regions are also covered between these ridges with sharp spinules, more crowded 

 and smaller on the branchial regions than on the cardiac. The infero-lateral sides of the carapace 

 between the inferior border, the hepatic sulcus, the hepatic spine and the y d lateral ridges 

 are covered with small acute granules that disappear towards the inferior border. The 

 posterior border of the carapace, bounded anteriorly by a groove, is smooth. The general 

 surface of the carapace is finely pubescent. 



The first four abdominal somites resemble much those of Nephr. nor- 

 wegicus. In the Norway Lobster the posterior, bandlike part of the i st tergum is separated 

 from the larger anterior overlapped part by a transverse furrow, which is continued to near 

 the lateral margin of the pleura. In Nephr. araftirensis this transverse groove does not proceed 

 on to the pleura, but ends at their antero-internal angle ; the pleura are, however, grooved by 

 a narrow furrow, that runs parallel with the posterior border from the outer margin of the pleura 

 towards the anterior groove. The anterior angle of the i st pleura ends in a small spinule. 



The posterior part of the 2 nd , 3 ,d and 4 th somites is also separated from the anterior, 

 overlapped portion by a transverse furrow, that issues at the anterior angle of the pleura, and, 

 like in Nephr. norwegicus, the posterior part presents a transverse groove, which is 

 interrupted in the middle by a narrow median ridge, so that it is divided into two bands 

 which pass into one another on the lateral margin of the terga. In Nephr. araftirensis the 

 anterior band or ridge is intersected by a narrow, oblique groove, which is wanting 

 in Ncphr. norwegicus \ this groove runs near the lateral end of the band and unites the anterior 

 groove with that which separates the two bands from one another. On the 4 th (and also on 

 the 5" 1 ) tergum of Ncphr. norwegicus the transverse furrow between the two bands or ridges 

 curves near the middle forward, intersecting the anterior band and terminating into the anterior 



