MEDUSA. I. 5^ 



5) — North of Tistil Fjord. August 30th 1904. Deptli 28 m. "Beskytteren", Gemzoe. — i spe- 

 cimen, fairlv large. 



6) — Lat. 66°38' N., Long. i6°i8' W., off :\Ielrakka. August 15th 1904. Depth 102 in. "Thor" stat. 

 258(04). — 5 specimens, diam. 6— 11 mm. 



South Iceland: 



7) — 9 miles off Krisuvikrberg. July nth 1903. "Thor" stat. 162(03). ~ Specimens in the col- 

 lection of the Plankton Laboratory, Copenhagen. 



8) — Portland Head. July i8th 1903. "Thor" stat. 176(03). — Specimens in the collection of the 

 Plankton Laboratory, Copenhagen. 



Between East Iceland and the Faeroe Islands: 



9) — Lat. 64°05' N., Long. 9°38' W. August 6th 1904. 80 m wire. — Specimens in the collection 

 of the Plankton Laboratory, Copenhagen. 



Norway: 



10) — Borfjorden, near Bergen. August 8th 1903. "Michael Sars". — i specimen, 5 mm wide. 



11) — Bergen. July 6th 191 1. Th. Alortensen. — 2 specimens, height 5 — 8 ram, diameter 6—7 mm. 



The specimens from the localities 2, 4, 5, 6, 10, and 11 are in the Zoological Museum of Copenhagen. 



Further Distribution: 



According to Browne (1900, p. 696) Mcliccrlu/ii octocostatiiiii is common at the coasts of Scot- 

 land but rare in the southern part of the British area. As to the east coast of Scotland it has been 

 found in Cromarty Firth (Romanes 1876a, p. 526), at St. Andrews (Mcintosh 1890, p. 304; Craw- 

 ford 1891, p. 296), and in Firth of Forth (Wright 1867, p. 42). At the west coast of Scotland it seems 

 to be common in Firth of Clyde and in the fjords and sounds of the surrounding area (Forbes 1848, 

 KolHker 1864, Browne 1900 and 1905a). 



It is still common in the gulfs on tlie north coast of Ireland (Thompson 1843 and 1856, 

 Forbes 1848), but only occasionally it drifts further southwards. A few specimens are found at Dublin 

 (Greene 1857), Port Erin (Browne 1895) and Valencia Harbour (Browne 1900 and 1905 a, Delap 1905). 



In the British Channel it has only been taken once, viz. at Falmouth (Cocks 1849), "abundant 

 in the summer". 



The northernmost locality, where the species has been found, is the Murman coast; here it has 

 been taken at three occasions (Linko 1904b). — At the Norwegian coast it was taken in great num- 

 bers at the Floro by M. Sars (1835). It is also recorded from the surroundings of Bergen (Broch 

 1905) and from Drobak in Kristiania Fjord (Ehrenberg 1836). 



In the Danish waters it has been found at several localities in the Skagerrak and the Katte- 

 gat, and Mob i us (1873) records it from the harbour of Kiel. 



The literature as well as the data derived from the present material demonstrate that Aleli- 

 ccrtiim ociocostatitvi is a distinctly neritic species (the American Alelicertuut caiiipajiula is likewise 

 "strictly confined to the coast water" (Bi gelow 1914 a, p. 125)). The only locality in some considerable 

 distance from the coast is that wliich is mentioned in the above list as No. 9. 



