49 



prope apicem dilatatis et ut illis iiuTqualiter bideiitatis. Hamuli prsterea adsunt 2 validissimi 

 chitinosi in remo dorsali segnieuti Ir setigeri. Branchiae sat magua^ dichotomes, totuni I'ere 

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

 oribus et posterioribus omnino deficientes. 



Sp. Paramphiuome Pulchella. I\l. Sars. 



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

 atum, segmentis setigeris 24— 33. Lobus cephalicus segmento 1";° angustior subovatus postice 

 rotundato-productus. Brancbi<e in segmento setigero 4'? iucipientes utrinque 4—6, ter-quater 

 dichotonio-divisa? ranuilis terminalibus cylindricis. Color albidus. Longit. niaximoruni fl Mm. 



Habitat ad oras Norvegise pluribus locis in prof. 20 — 300 orgyarum fuudo linioso. 



The Genus Paramphinome 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 tjie 

 whole they are much finer than in tliis, 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 P} segment. 



