IQO 



DISCOVERY REPORTS 



St. WS 97. 18. iv. 27. 49° 00' 30" S, 61° 58' 00" W. From 49° 00' 00" S, 62° 00' 00" W to 

 49° 01' 00" S, 61° 56' 00" W. 146-145111. Gear OTC. Bottom: sand, gravel and stones. Four 

 specimens. 



8mmT \ ■Sm«^T 



0^ 



a 



T08mm 



^O 



Fig. 79. Amphitrite edwardsi. 

 a. Gills of right side seen from below and from the side. b. Dorsal bristle. 



f . Thoracic hook. 



Remarks. The largest specimen measures 45 mm. by 6 mm. for 48 chaetigers. It 

 is incomplete posteriorly. The thorax is thick and dorsally arched. There are no eye 

 spots. There are large lateral flaps on the 2nd and 3rd segments and a small one on the 

 4th. There are 11 ventral gland shields. Each of the three pairs of gills (Fig. 79, o) 

 consists of a pair of stout and richly branched trunks. The nephridia extend from the 

 3rd to the 1 2th segments. There are 17 thoracic notopods. The dorsal bristles have 

 distinct borders and a long denticulated apex (Fig. 79, b). The double rows of hooks 

 (Fig. 79, c) extend from the 7th to the i6th uncinigers. The hooks have about six rows 

 of teeth above the main fang. Posteriorly the abdominal tori are gradually transformed 

 into narrow pinnules. 



I have compared these specimens with some examples from St Vaast named by 

 Fauvel and, except in the matter of size and in the fact that in the European specimens 

 the nephridia extend from the 3rd to the i ith segments, while in the southern examples 



