l'47 



Rostrum er (se Fig. 6) mindre tydeligl begrændsel 

 fra Basalstykkerne, saa at jeg først tog t'c>il af dets Fonn. 

 Det synes imidlertid at være vel udviklet og kileformigt 

 eller pyramidalt som hos Sc. Strømii, med Basalranden 

 temmelig bred. og jevnt afsmalnende mod Spidsen. 



Stilken er forholdsvis kort. neppe mere end halvt saa 

 lang som Capitulum og noget indknebet paa Midten, uden 

 dog at vise ungen mærkbar Bøining. Den er som hos Sc. 

 Strømii dækket af store regelmæssigt taglagte Ealkskjæl, 

 der alene ved den noget udbredte Basis bliver meget smaa 

 og rudimentære. 



Den ydre Beklædningsmembran er overalt, saavel paa 

 Capitulum som Stilken, ru af tine Smaapigge, der ligesom 

 et fint Dun overdrager hele Legemet. 



Paa et af de undersøgte Exemplarer fandtes fæstede 

 til Indsiden af Skjoldene nær deres Aabningsrand 2 af de 

 eiendommelige supplementa-re Hanner, hvoraf den ene er 

 afbildet Fig. 7 stærkt forstorrret. Legemet er blødt, uden 

 Spor af Valvler eller Kalkplader, hvorimod den tynde con- 

 tractile Hud er overalt ru af yderst fine Smaapigge. Af 

 Form er det temmelig regelmæssigt ovalt og viser i den 

 ene Ende en af 4 læbeformige Fortykkelser begrændset 

 Aabning, hvorigjennem et Bundt af stive Børster (de rudi- 

 mentære Randen rager frem. Paa den ene Side af Lege- 

 met og i temmelig betydelig Afstand fra den aborale Ende 

 sees de 2 Hefteantenner med sine Børster og Hefteskiver. 

 Legemet er fyldt med et fint kornet Indhold og i den ydre 

 Hud sees tydelige fra Hefteorganerne radierende fine Muskel- 

 fibre. 



Farven er som hos de 2foregaaende Arter ensformig 

 hvid. 



Længden af det største erholdte Exemplar er 35""", 

 og nærværende Form horer saaledes til de største bekjendte 

 Arter af Slægten. 



Forekomst. Vi har tåget denne smukke Art paa 3 

 forskjellige Stationer. alle tilhørende den kolde Areas Dyb. 

 Af disse ligger de 2 (Stat. 18 og 35) i Havet mellem Norge 

 og Færøerné, den 3die (Stat. 312) NV af Beeren Eiland; 

 Dybden fra 412 til 1081 Favne. Exemplarerne fandtes 

 fastheftede dels til Spongier, dels til Smaastene fra Hav- 

 bunden. 



The rostrum (sec fig, i; is less distinctly marked off 

 from the basal segments, a character thai a1 first led me 

 tu misapprehend its form. Meanwhile, it would appear to 

 be vrll devejoped, and cuneiform or pyramidal, as in Sc. 

 Strmiui, with the basal margin rather broad aud gradually 

 tapering toward the extremity. 



The peduncle is comparatively short, scarcely more 

 than half as long as tin- capitulum, and a trifie constricted 

 in the middle. without however exhibiting any appreciable 

 flexure. As in S< . Strømii, it is covered with large cal- 

 careous imbricate scales, and which. at the somewhat ex- 

 panded base only, become exceedingly small and rudimen- 

 tary. 



The outer investing membrane is everywhere, both 

 on the capitulum aud the peduncle, rough tu the feel from 

 niinute spikelets, which. with the aspeet of a drlieate pubes- 

 cence, extend over the whole body. 



I >n one of tin- specimens examined, were found, at- 

 tached to the inner side of the scuta, near their occluding 

 margin, 2 of the peculiar supplementarv males, one of which 

 has been represented in fig. 7. highly magnified. The body 

 is sott, without a trace of valves nr calcareous plates, whereas 

 the tenuous, contractile skin occurs everywhere roughened, 

 from exceedingly minute spikelets. ln form. it is approx- 

 imately oval. and exhibits at one extremity au orifice, de- 

 fined by 4 labiate inspissations, through which a fascicle 

 of stiff bristles (the rudimentary tendrils) are seen to pro- 

 ject. On one side of the body, and placed at a consider- 

 able distance from the aboral end. occur the 2 antennæ 

 of attaehment, with their bristles and discs. The bodj 

 contains a finely granular substance; and in the outer in- 

 tegunient may be distinctly seen delieate muscular fibres, 

 radiating from the organs of attaehment. 



Colour, as in the 2 preceding species, a uniform 

 white. 



Length of the largest specimen obtained 35™™, and 

 hence the present form rauks among the largest known 



species of the genus. 



Occurrence. — This beautiful spreies was tåken on 

 the Norwegian Expedition at 3 different Stations, all be- 

 longing to the eold area. Two (Stats. 18. 35) lav in the 

 tract of ocean between Norway and the Pæroes, the 3rd 

 (Stat. :!12) north-west of Beeren Eiland; depth ranging 

 from 412 to 1081 fathoms. The specimens were found in 

 part attachcd to sponges, in part to- rubble from the sea-bed. 



