32 



ACTINIARIA 



im® 



longitudinal muscle-pennons rather strong, in the upper part of the reproductive region with about 13 — 18 

 folds. Outer part of the pennons stronger than the inner one. The outer lamellar part of the mesenteries 

 attached to the pennon rather close to the centre. Parietal muscle in the reproductive tract with few to rather 



numerous, thin and a little 



dichotomously branched 

 folds, issuing from a rather 

 thin, main lamella of the 

 ® II mesogloea. The extension 



of the parietal muscles on 

 the column ordinary. 



Colour. Physa unco- 

 loured. Scapus ochreous-y el- 

 low to orange or more dirtily- 

 grey. Nemathybomes unco- 

 Fia. 16. b mil nil loured. Capitulum now un- 



coloured, now paler or dar- 

 ker brownish-red, in the 

 latter case with opaque white 

 /"" . " spots, with conspicuous in- 



Textfigs. 16-18. Arrangement of the ne- ggrtions of the mesenteries. 



. Arrangement of the ne- 

 mathybomes between two perfect mesen- 

 teries in Edwardsia longicornis (fig. i6a) The spots are arranged in 

 in E. pallida (fig. i66), in E. danica (fig. 

 17) and E.andresi (fig. i8). pm: parietal 

 muscles. The figs. 16 and 18 are drawn confluent, forming indistinct, 

 in the same magnification, the fig. 17 is 



more magnified than the others. £-.;oKgi- i" the Upper part broader, 

 cornis and pallida (from Bohuslan) and longitudinal Unes, often ter 

 E. andresi (from Lyngen) were well ex- 

 panded, E.danica (from htile Baelt, Mor- minating below the tentacles 



ten sen) was more contracted. The ecto- .,, 111/^1 



. ' . ,. , . With a more clearly denned 



derm m the preparations has been pen- 

 cilled away. 



Fig. li 



the middle-hne and often 



Fig. 17. 



part. Tentacles uncoloured, 

 with scattered, irregular, yellowish-white and reddish-brown spots. Oral disc yellowish-wliite shading off 

 into ochre, with smaller white and larger brown spots and stripes. 



Dimensions in extended state: unto about 3 cm long and 0.3 cm broad. 

 Occurrence: Norway. Drobak (Ivittken). 



Sweden. Bohuslan. Stromstad fiord (1882), Koster, Styrso 10 fms. (Carlgren 1889), 

 Bolthalan 20 — 25 fhs. (Hansson), Vaderoarne 8 — 10 fms. (Carlgren, 

 Ostergren and others) very common, 15 fms. (Goes 1882), Varholmen 

 (Carlgren), Gullmar fiord, Samstad 8 — 10 fms. (Carlgren 1889) common, 

 Zool. Stat. Kristineberg (1893), Gaso "ranna" 8 — 10 fms. (Carlgren 1889 

 ■ — 90), N. Gaso fiord (Wiren 1890). Bohuslan without distinct locality 

 (I/O V en). Gothenburg Styrso (I^agerberg). 



