REVISE THE GROUP AXD TO DETERMINE ITS IDEOGRAPHICAL RA>~GE. 343 



Nephridia, three pairs. 



Anal trees, l - 7o" long, or 3 cm. long, light brown. Fischer was not able to find 

 any ciliated openings on them. 



Locality. Punta Arenas, Straits of Magellan. 



Species 6. Echini-its forcipatus. Reinhardt. 



Greef. Acta Ac. German. Vol. xli. Pt. II., 1879, p. 143. 



Koren and Danielssen, Fauna Littoralis Norwegiae. 3rd Hft. 1877, p. 151. 



Synonym. Echiurus lutkeni. Diesing. 



Size of body, larger than the average of E. PaUasii, Hansen's specimens from the 

 Send Fjord measure 4'li cm. in body-length, 2 cm. in diameter, and 1'4 cm. in the 

 proboscis. 



Colour, greyish-green. 



Papillae not in very definite rings, forming anteriorly and posteriorly irregular 

 '• plaques." Two rings of bristles, the anterior with 9 — 10, the posterior with 7 bristles, 

 in Hansen's specimens the number of bristles were 7 anteriorly and 6 posteriorly. 



Locality. Coast of Greenland, and the Si/ind Fjord. The details of this species 

 are very inadequate and I can only re-echo Greef's remark. " Echiurus forcipatus bedarf 

 somit, meiuer Meinung nach, riicksichlich seiner Artselbststandigkeit einer weiteren 

 Priifung." 



Species 7. Echiurus pallasii. Guerin-Meneville. 



Greef. Acta Ac. Genua,,. Vol. xli. Pt. II., 1879, p. 136. 



Koren and Danielssen. Fauna Littoralis Norwegiae, 3rd Hft. 1877, p. 151. 



Length of body, 10 — 15 cm., including proboscis. Diameter of body, 3 — 4 cm. Length 

 of proboscis, 3 — 4 cm. 



Colour, grey or greyish yellow to a deep yellow or orange. 



Papillae arranged in more or less definite rings, of which there are 20 — 23 rings 

 of large papillae, and between each of these 3 — 5 rings of smaller papillae. Two rings 

 of bristles, the anterior with 8, the posterior with 7 bristles. 



Nephridia, two pairs. 



Anal trees, long, simple, brown tubes. 



Locality. North Sea, English Channel, the Sound, North Atlantic, in the Christiania 

 Fjord and the 0x Fjord (Finmark). It lives in soft sand, mud or clay. Apparently this 

 animal was formerly used by the fishermen of the Belgian and German coasts as bait, 

 though it is doubtful if it is now so used. 



W. III. *' 



