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prope apicem dilatatis et ut illis insequaliter bidentatis. Hamuli prscterea adsunt 2 validissimi 

 chitinosi in remo dorsali segment! 1 setigeri. Branchiae sat magnse dichotomes, totum fere 

 dorsum tegentes, in segmentis vero paucis corporis per paria obviae in segmentis et anteri- 



oribus et posterioribus omnino deficientes. 







Sp. Parainphinome Pulchella. M. Sars. 



Corpus fere cylindricum, parum latins quam altius, et antice et postice leviter attenu- 

 atum, segmentis setigeris 2433. Lobus cephalicus segmento Ir angustior subovatus postice 

 rotundato-productus. Branchiae in segmento setigero 4'? incipientes utrinque 46, ter-quater 

 dichotomo-divisae ramulis terminalibus cylindricis. Color albidus.. Longit. maximorum 9 Mm. 



Habitat ad oras Norvegiae pluribus locis in prof. 20 300 orgyarum fundo limoso. 



The Genus Parainphinome is distinguished from all the other known Amphinomes by 

 the gills, which are only confined to some few segments of the body, while in the other forms 

 they usually appear on all. They are also proportionally much more strongly developed than 

 in the other forms, nearly covering the whole dorsal side of the segments on which they are 

 situated. The want of eyes, and of a distinctly marked caruncula distinguishes it also from 

 the other known Amphinomes. With respect to the construction of the pedal bristles, the 

 present form shews most resemblance to the genus Eurythoe Kinberg: although on the 

 whole they are much finer than in this, as well as in the other Amphinomes. The short 

 spiked bristles with backward-turned teeth or hooks, which are characteristic of the Amphi- 

 nomides, also appear here, although much less developed than usual. On the other baud, 

 the present genus distinguishes itself remarkably from all other Amphinomes, by the 2 peculiar 

 and particularly strongly developed chitine-hooks, which are found attached to the dorsal pedal 

 node of the 1 s . 1 segment, 



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