. . ACTINIARIA 



44 



the reproductive region rather elongated with some twenty to some thirty folds, somewhat ramificated, 

 especially in the outer part of the pennon. The outer lamellar part of the mesenteries attached to the pennon 

 not far from the outside of it. Parietal muscles very strong, in transverse-sections often more or less trianguloid 

 with rather richly branched folds. The expansion of the parietal muscles on the column is considerable. 



Colour. Scapus green with a few brownish-yellow patches, capitulum and tentacles pellucid. At 

 the uppermost margin of the capitulum some dots of a rather intense brown colour, placed two and two 

 together on a milky-white ground, appear like a double ring — a brown one and a white one below. Tentacles 

 of the extremities of a faint violet, extending like a fine line a short way down the aboral side ; they also have 

 a brown anniilus at the base. Oral disc brown, of a somewhat paler colour than the brown actinopharynx 

 (Danielssen). In preserved state the periderm is dirty-green or -grey, sometimes more or less dirty-ochreous- 

 coloured. 



Dimensions in expanded state. Length of the column 9 cm, breadth of the same 0.8 — i cm, length 

 of the tentacles 1.6 — 2 cm (Danielssen). In preserved and very contracted state the length amounts to 

 2.7 cm. 



Occurrence. Davis Strait. 66°35' N. 56°38' W. 318 fms. Bottom temp. 3°9 (Ingolf-Exp. St. 32) i sp. 

 West Greenland. Bredefiord 220 — 310 m. (Rink-Exp. 1912 St. 64) i sp. 

 Iceland 6 — 7 miles N. W. of Borgarfiord 85 fms. (Haller 1867) i sp. 

 Beeren Island-Spitzbergen. 75°58' N. I3°i8' E. 350 m. (Sw. Spitzbergen-Exp. 1898 



No. 41) I sp. 

 Norway-Beeren Island. 73°27' N. 23°! i' E. 460 m. (Sw. Spitzbergen-Exp. 1898 No. 2) 



II sp. 

 Norway Finmark Skjerstadfiord 320 m. (Nordgaard) 481 m.; Bottom temp. 3°2 



(Norw. N. Atl.-Exp. 1877 St. 253) numerous sp. 



— — Lyngen 300 m bottom temp, between 3°5 and 3^65 (Nordgaard 



1899) numerous sp. 



— — Ogsfiord (Sars labelled Edwardsia duodecimcirrata) . 



— — Tromso Faemes (1881). 



North Atlantic. 6i°4o' N. 3°ii' E. 220 fms. Bottom temp. 6°34 (Michael Sars-Exp. 



1902 St. 51).). 

 Skagerrak 139 fms., 300 fms. (J. Lindahl 1877) numerous sp. 

 Exterior aspect. The physa is well-developed and perforated by apertures in such a way as 

 described by me below in E. vegae. The long scapus is provided with a thin, sometimes transparent, rather 

 easily deciduous periderm which sometimes may be incrusted with foreign bodies. In its contracted state 

 the mesenterial furrows are very distinct, wherefore the scapus seems polygonal, and also when the scapus 

 is extended, these furrows are rather conspicuous. According to the figure reproduced by Danielssen there 

 is in each compartment a single, longitudinal row of nemathybomes. Such a regular arrangement I have 

 never observed, neithe r in a type-specimen nor in the numerous specimens examined by myself. In the con- 

 tracted specimens the nemathybomes are commonly more irregularly arranged, though collected in the 



