ACTINIARIA 



Fig. 12. 



Fig- 13- 



Textfigs. 12 15. Edwardsia tuberculata . 

 Transverse sections of pennons (figs. 12, 13) 

 and parietal muscles (figs. 14, 15) in the re- 

 productive tract. Fig. 12 spec, from the muse- 

 um of Christiania, fig. 14 spec, from the Catte- 

 gat (Petersen) and figs. 13, 15 young spec, 

 from Utne fiord. 



Remark. Andres (1883) 

 and after him I myself (1893) have 

 placed this species together with 

 Rathke's E. clavata, on the suppo- 

 sition that the nemathybomes had 

 been overlooked by Rathke. After 

 having examined the D lib en and 

 Koren's species I think that it can- 

 not be identical with E. clavata, be- 

 cause the nemathybomes in E. tuber- 

 culata are too large to be overlooked. 

 In fact it is impossible to identify 

 with certainty Edwardsia clavata with 

 any here described species, as Rath- 

 ke's description may be applied to 

 several Scandinavian species. As no 

 .type-specimen of E. clavata is known, 

 I think that E. clavata may be 

 dropped. I have not had the oppor- 

 tunity to see the specimens from 

 Molde nor those collected by Appel- 

 16 f and by Grieg; probably most 

 of these belong to E. tuberculata, at 

 any rate the specimen rep reduced by 

 Appellof(i89i) indubitably belongs 

 to this species. On the other hand 

 it is questionable if the specimens, 

 dredged in the Herlofiord from shal- 

 low water (6 12 fathoms) really, are this species, as E. tuberculata seems to live in deeper water (compare 

 the occurrence). 



Edwardsia longicornis (n. sp.). 



Edwardsia clavata var. longicornis n. var. Carlgren. 1893 a p. 12. 



Diagnosis. Physa distinct. Scapus with a well-developed periderm and 8 lines of rather large 

 but comparatively few nemathybomes. Nematocysts of the nemathybomes partly 36 65 X 2 (2.5 p partly 

 36 86 X 3.5 4.5 (5) //. Tentacles 16, very seldom 12?. Nematocysts of the tentacles 17 23 X 2 (2.5) ,, 

 their spirocysts 14 17 /i long. Nematocysts of the actinopharynx partly typical, 14 17 X 2 p and 25 29 

 X 2.5- 3 n, partly with discernible basal part to the spiral thread, broader in the basal end 26 30 X 7 p. 



Fig 



