HYDROIDA II 



49 



all, as loii" as we bear in mind that the two statements refer to the gonotheca as viewed in the one 

 case from the flat, in the other from the side. Conseqnently, all things considered, I regard the col- 

 onies in question as representatives of Halecmm tfnellnin. 



Jaderholm (1909 p. 55) notes Halecium Schneider i (Bonnevie) (1898 p. 10) as synonymous with 

 Haleciuni tciielluin\ this, however, requires further justification. The shape of the colony, and the 

 lively formation of pseudohydrocauli in Halecium Schiirideri^ agree rather with Halecium tninutum, 

 but the identity of the species is altogether doubtful, from the data we possess. Should the female 

 gonothecse prove to correspond with Schneider's Haleciitiii naniim (1898 p. 481) then we have here 

 a species entirely distinct from Haleciuni tcnelluiu and Haleciitin iiiimitiini. Similarly, it may be doubtful 



6con. ^ .IQOO m. 



Fitr. XXI. Finds of Halfchim teiulluin in the Northern .\tlantic. 



whether the species noted by me (1913 p. 17) as Haleciuni toielhini, from the Adriatic, really belongs 

 here; the method of growth of the colony, and its dimensions, differ to such a degree from what is 

 found in northern specimens of Haleciuni toielliim, that we must await demonstration of the gonotheca; 

 in the Adriatic form before we can determine with certainty whether it belongs to this species. 



The colonies agree on the other hand \ery well with the Halecimn textuni described by 

 Kramp (1911 p. 368); the marked curvature of the hydrotheca margin in this species is not more 

 pronounced than is frequent!}- met with in Haleciuni leitelluni\ here, however, we must also await the 

 finding of gonangia. It would also seem likely, as Kramp (1914 p. 1003) points out, that the Hale- 

 cium crinis described by Stechow (1913 p. 79) belongs under Haleciu/n tcnelluni\ Stechow's inter- 

 pretation of the manner of ramification in the colon}' is based upon an entirely erroneous appreciation 



The Ingolf-Expedition. V. 7. 7 



