8.) 



MEDUSA. I. 



crowded on the bell margin, and not seldom two snccessive tentacular bulbs are more or less coalesced. 

 In the countings of tentacles, mentioned below, two such tentacles with coalesced bulbs are always 

 counted as two tentacles. The number of tentacles in different specimens of equal size is very variable 

 (see below). The greatest number, which I have observed, is 328, found in a specimen, 15 mm wide, 

 from Dyrefjord, Iceland (Loc. No. 18 c). 



Chart X. Occurrence of Tiaropsn multicirrata M. Sars in tlie northern .\tlautic and adjacent waters. 



O Occurrence according to the Hterature. 



Material (.see Chart X): 

 West (jreeuliiud: 



1) — Greenland, Holboll (1841). — i specimen. Type .specimen of Thaituniiitias eschscholtsii 

 Haeckel. 



2) — Greenland (1865). — 2 specimen.s, labelled ThaitiiiauHas (■schschoUzii. 



3) — Egedesminde, Bergen dal (1890). — i specimen. 



4) - Lat. 66°ii' N., Ivong. 54°27' W., off vSondre Stronifjord. August 28th 1908. Ringtrawl, 80 m 

 wire. "Tjalfe" stat. 221. — i specimen, 15 mm wide. 



