ACTINIARIA 



Eloactis mazelii (Jourd.) Andr. 



PI. i. Fig. i. 



Ilyanthus mazelii, n. sp. Jourdan, 1880, p. 41, PI. 2, fig. 5. 

 Anemonactis magnified, n. sp., Andres, 1880, p. 329. 



Eloactis mazelii Jourd., Andres, 1883, p. 465, PI. 8, figs. 4 7, fig. 39. Faurot, 1893, p. no, PI. i, fig. 4, 



PI. 5, figs, i, 2. Garstang, 1892, p. 380. Walton and Rees, 1913, p. 68. Rees, 

 1913, p. 70, textfigs. i 4. 



Diagnosis: Nematocysts in the ectoderm of the column 26 29x2,5^, in the acrospheres 120 202 

 X about 4 jjt, in the peduncle of the tentacles 20 24 X 2,5 ft, in the actinopharynx 53 65 X 5 ft. longi- 

 tudinal muscles of the peduncle of the tentacles strong. Pennons of the mesenteries in the reproductive region 

 very strong with numerous (about 30) folds, high, rather much ramificated and almost all of about equal 

 length. Outer lamellar part of the mesenteries attached to the pennon near the outside. Parietal muscles 

 strong, provided in the outer parts with low, in the inner parts with comparatively high and a little branched 

 folds; not expanded upon the column. 



Colour: reddish-orange, physa paler, tentacles white with brown tips, oral disc orange with darker 

 radial streaks (Jourdan) (yar. rubra compare Andres, 1883, p. 465). Flesh-coloured tint, tentacles marked 

 with brown near the apex, oral disc orange-pink with somewhat paler rays (Walton and Rees). Body- 

 wall orange, tentacles blotched with brown at the apex, several tentacles had purplish, double stripes on 

 the inside, others appear to have only one coloured stripe (Orton). Column white, shading off into yellow. 

 Tentacles white, shading off into flesh-colour or yellow, provided with numerous, irregular, reddish-brown 

 spots increasing in number in the uppermost part of the peduncle, and with small opaque white spots. Oral 

 disc of the same colour as the tentacles with 20 opaque, white tongues turning towards the mouth (spec- 

 imens from Naples, Carlgren). Column shading off into brown, tentacles uncoloured (Ap pell of). 



Dimensions: Height of the body unto 8 cm, breadth 5 cm, length of the inner tentacles 3,5 cm, 

 length of the outer ones 6 cm (Andres). 



Occurrence: Norway. Hjalte fiord 40 50 fms (Appellof) I small specimen. 



Further distribution: The Mediterranean. Gulf of Marseilles 6080 m (Jourdan). Naples 



(Andres). 



England. Devonshire coast (Garstang). South Devon Coast, Eddy- 

 stone (Walton and Rees). 



Exterior aspect: The proximal body-end is rounded, forming a physa which is, however, not di- 

 stinctly limited from the other part of the column. The physa is perforated by numerous, radially arranged 

 apertures as in Peachia. The rows correspond in number to the mesenteries. In a large specimen from Naples 

 I have observed more than 10 apertures in each row. The shape of the body is cylindrical or more ovoid, 

 according to the state of contraction, and provided with 20 distinct longitudinal furrows, corresponding 

 to the insertions of the mesenteries. On the surface there are numerous, close, flat elevations in scattered 

 groups and of variable size, very distinct in extended specimens, but difficult to discover in contracted ones, 

 as the column of such specimens is very wrinkled. In the uppermost part of the column there are some few 



