QQ Rev. T. Hincks on Arctic Hydroida and Polyzoa. 



Coll. Hart : Cape Praser, 20 fathoms, one female specimen. 



The specimens collected of this very remarkable species, which 

 has been fully described and illustrated by the late Dr. M. Sars in 

 the memoir above referred to, are unfortunately all much mutilated ; 

 in none are the antennse and slender and greatly elongated legs of 

 the third and fourth pairs in a perfect condition. 



The largest specimen, the female from Cape Fraser, has the ovi- 

 gerous plates greatly developed, and is about 9^ lines (18 miUims.) 

 long. 



This species has been found at a depth of 50-100 fathoms in the 

 Christiania Sound, and at a depth of 250 fathoms at the Lofoten 

 Islands. It is also recorded by Buchholz (Crust, in ' Zweite deutsche 

 Nordpolarf,' p, 2S5,,note) from Spitzbergen, and was obtained during 

 the cruise of the ' Valorous,' in lat. 69° 31' N., long. 56° 1' W., at a 

 depth of ] 00 fathoms. 



[To be continued.} , 



VI. — Note on Lists of Arctic Hydroida and Polyzoa pidjlished 

 in the '' Aimals for February 1^14: and January 1877*. 

 By the Eev. Thomas Hincks, B.A., F.R.S. 



In the first of the papers referred to above I have given an 

 account of some Hydroids which were obtained by Dr. Wal- 

 lich, as I supposed, off the coast of Iceland. In the second 

 some Polyzoa which formed part of the same gathering were 

 catalogued and several new species described. 



The bottle containing the dredging, which was placed in 

 my hands by Mr. Busk, was labelled legibly, "Off Reykjavik, 

 in 100 fathoms, amongst icebergs grounded and drifting," 

 or to this effect ; and I had no reason whatever to suspect 

 inaccuracy. Since the publication of the second paper, how- 

 ever, Dr. Wallich, whose attention had not been previously 

 directed to the matter, has informed me that there has un- 

 doubtedly been some blunder, inasmuch as there is no water 

 of the depth off Reykjavik, nor are there any icebergs f- He 

 has kindly examined his journals, notes, &c. for the purpose 

 of removing, if possible, the doubt as to the locality ; and his 

 conclusion is that the material with which I have dealt in my 



* " On Deep-water Hydroida from Iceland," Annals, Feb. 1874, p. 146; 

 '' On Polyzoa from Iceland and Labrador," Annals, Jan. 1877, p. 97. 



t Dr. Wallich writes {in lift.), "■ At Rekiavik Harbour I dredged not 

 from the ship, but from a boat. In no part of the harbour did I find 

 deeper water than about 20 fathoms. 1 do not believe there is much 

 deeper water within half a mile of the little town ; and beyond this range 

 1 did not go. The barbour is a bay in no sense comparable \o a herd, the 

 shore being sloping, and flat, low islands scattered here and there. A 

 berg cotdd not get into the harbour. Even outside the mouth of the bay, 

 southward of Cape Eekianess, no icebergs are ever in these days met 

 with." 



