62 



ACTINIARIA 



other Octo-corals or on Brisinga. In contradistinction to the genus Edwardsia they do not show any reac- 

 tions to light or to shade. 



Remarks: This species has before been described by me in detail (1893, p. 17); I have here com- 

 pleted the description mainly with regard to the stinging capsules. Concerning further details I refer to 

 tliis work. 



Milne-Edwardsia carnea (Gosse) Carlgr. 



Edwardsia carnea n. sp. Gosse 1856, p. 219. PI. 9, figs, i — 4. 



— — Gosse, Gosse 1858, p. 418, Gosse i860, p. 259, PI. 7, figs. 5 — 6, PI. 12, fig. 3, Hincks 



1861, p. 363, Haddon 1889, p. 328, PI. 33, fig. 15, PI. 36, figs. 5—6. Bourne 



1916, p. 25, textfig. 2. 

 Edwardsiella — — Andres 1883, p. 99, Pennington 1885, p. 178. 

 Milne-Edwardsia — (Gosse) Carlgren 1892, p. 456, figs. 4 — 6. 



Diagnosis : Real physa absent. The proximal part of the animal can, however, serve as a sort of 

 physa when the cuticle is loosened. Scapus not polygonal, with a rather well-developed, easily deciduous cuticle. 

 The ectoderm of the scapus with nematocysts mainly arranged in larger and smaller groups, its nemato- 

 cysts 29 — 34 (37) X 7 — 8 11. Capitulum distinctly polygonal, the ridges however not as high as in M. loveni. 

 Nematocysts of the capitular ectoderm 26 — 46 x 7 ^^, those of the tentacles partly 18 — 24 x 5 /i, partly 

 27 X 7 ,M. Number of tentacles from about 18 to 32. Nematocysts of the actinopharynx partly t3rpical, 17 

 — 20 X 3 /Jt, partly so, with distinct basal part to the spiral thread 22 — 29 X 5 //. lyongitudinal muscle-pen- 

 nons weaker than in M. loveni; in the reproductive regions commonly with only 12 folds and never more 

 than 20. 



Colour: Cuticle of the scapus brownish-yellow. "Physa" and scapus rose-red. Capitulum trans- 

 lucent, flesh-coulored. Each capitular ridge has a fine Une of opaque white or hght pale-yellow with a dilute 

 spot of the same colour near the base. Tentacles translucent, flesh-coloured, sometimes with alternate bands 

 of stronger colour, often pale opaque-yellow at the base. This colour forms a spot on each side of the ten- 

 tacles. Oral disc transparent with a cream-coloured star. Mouth as well as actinopharynx scarlet-red 

 (Gosse) — Cuticle of the scapus dirtily yeUowish-brown. Capitulum, scapus and "physa" flesh-coloured, 

 translucent. Capitulum has on the middle or a httle below a more or less opaque white annulus of rectan- 

 gular spots, separated by a small flesh-coloured part from the pale whitish insertions of the mesenteries. 

 These spots are sometimes prolongated as very pale lines on the rather strong capitular ridges, Tentacles 

 flesh-coloured with a little tinge of rose-colour, especially conspicuous when the tentacles are contracted. 

 The outer part of the oral disc is opaque white shading off into yellowish- white ; the colour also expands to the 

 middle part of the tentacles as a narrow tongue-shaped spot with the point facing towards the end of the 

 tentacles, and between the tentacles as narrow lines. The inner part of the oral disc is scarlet-red with 

 opaque white streaks. Actinopharynx scarlet-red. Reproductive organs and filaments orange-coloured 

 (Carlgren). 



Dimensions: Length of the column 2,5 cm., breadth 0,2 cm (Gosse). A small, expanded spec- 



