2s6 DISCOVERY REPORTS 



These latter specimens were taken off the coast of Annam. Other locaUties in which 

 it has been found are the southern Pacific (between Norfolk Island and new Caledonia), 

 the Gulf of Senegal and the seas around Java and the Moluccas. 



Genus Sipunculus Linnaeus 



12. Sipunculus nudus L. 



Distribution. This species is widely distributed in the oceans of the world, being recorded from 

 many parts of the Atlantic, Indian and Pacific oceans. 



Occurrence. St. WS 128, west side Gough Island, inshore, 40" 19' 00" S, 10" 04' 00" W. 10. iv. 27. 

 90-120 m. 



Only one specimen was secured. This consisted of the lustrous, translucent and highly 

 iridescent anterior portion of a medium-sized animal. The internal organs were much 

 damaged. There were thirty-two longitudinal muscle bands. The ventral retractors 

 were attached to the second, third and fourth longitudinal muscle bands, while the 

 dorsal retractors were attached to the ninth, tenth and eleventh muscle bands. 



Genus Physcosoma Selenka 



13. Physcosoma nigrescens Keferstein. 



Distribution. A widely distributed species occurring in the Indian Ocean, Pacific Ocean and in the 

 Atlantic. In this latter area it has been recorded from the east coast of South 

 America and from the west coast of Africa as far north as the Gulf of Guinea. In 

 the Gulf of Guinea it has been recorded from the Gold Coast, Ilha das Rolas bei 

 Ilha de Sao Thome and the Isle of Annobon. It is now recorded for the first time 

 from Ascension and Tristan da Cunha. 



Occurrence. Ascension: Clarence Bay: St. i. 16-27 m. 



St. 2. Shore collection 'found in Lithe thamnion'. 

 Tristan da Cunha: St. 4. 40-46 m. 



St. 6. 80-140 m. 

 Gulf of Guinea: Off Annobon. St. 283. 18-30 m. 



At St. I the animals were mostly large, the largest, which was not fully expanded, 

 measuring about 55 mm. overall. All were distinctly coloured. In each animal the 

 dorsal side of the introvert was red-brown. In some, single red-brown papillae were 

 scattered over the body showing up in marked contrast to the whitish papillae covering 

 the body. In other specimens the red-brown papillae were gathered into small groups 

 giving the animals the appearance of being spotted. Twenty-five specimens were taken. 



At St. 2 the ten specimens were considerably smaller than those at St. i, the largest 

 measuring only some 20 mm. overall. These animals had also red-brown papillae 

 scattered over the body. 



At St. 4 some fifty specimens were taken. All were comparatively small, the largest 

 which was more or less fully expanded, measuring only some 30 mm. overall. At this 

 station the animals were all a dirty grey- white and showed no colouring at all. 



At St. 6, from fairly deep water, only one small specimen was secured. It also showed 

 no pigmentation. 



