y2 ACTINIARIA 



Edwardsiella sarsii Sars, Andres 1883, p. loi. 

 }Edwardsia carnea Gosse, Ivcvander 1892, p. 292, fig. 

 Edwardsia carnea Gosse, Appellof 1893, p. 4, PI. i, PI. 2, figs. 6—9, PI. 3, figs. 12—18, 20—23, 1895. 



p. 7, II. Grieg 1897, p. 4, 9. 12. 

 Milne-Edwardsia carnea Grieg 1913, p. 143. 



Diagnosis: A small, not vesicular, physa present. Scapus-circumference round, with distinct 

 longitudinal furrows, but with a thin periderm, scattered "/fn'/c«w/)a -papillae" and scattered nematocysts 

 partly 17 — 22 X 3,5- — 4,5 ji, partly 8 — 12 // long. Capitulum polygonal with 8 rather distinct longitudinal 

 ridges and with nematocysts partly smaller, 10 — 14 X 1,5 — 2 ji, partly larger, about 24/^ in size. Tentacles 

 from 20 to more than 30, the inner ones longer than the outer ones and hexamerously arranged, with nema- 

 tocysts 19 — 22 X 2 /i and spirocysts to about ^28 X 5 /i in size, in the ectoderm. Typical nematocysts in the 

 ectoderm of the actinopharynx partly 14 — 22 X 1,5 — 2//, partly 24 — 29 X 2,5 — 3,5 /i, besides nemato- 

 cysts with distinct basal part to the spiral thread 22 — 24 X 3,5 — 5 fi in size. A hardly differentiated ventral 

 siphonoglyphe. Nematocysts in the endoderm of the column, tentacles, and actinopharynx numerous, 34 

 — 43 X 5 //. Longitudinal pennons of the mesenteries in the reproductive regions on transverse-sections 

 rather elongated with about 15 — 20 somewhat ramificated folds. Inner folds of rather equal height, con- 

 siderably lower than the outer folds. The lamellar part of the mesenteries attached to the outer part of the 

 pennons. Parietal muscles in the reproductive region well developed, rather richly ramificated and on trans- 

 verse-sections of a rounded appearance, in the other parts considerably weaker and arranged more in the 

 shape of a fan. The parietal muscles are considerably expanded on the column. 



Colour; Physa uncoloured. Scapus brownish-yellow. Capitulum and tentacles translucent, un- 

 coloured. Oral disc and actinopharynx red (Appellof 1893). According to Sars (1829) the colour of his 

 Lecythia brevicornis was: Scapus dirtily-green, opaque. Capitulum and tentacles hyaline, shading off into 

 pale red. Mouth and actinopharynx dark red. 



Dimensions : Length to 3,5cm, breadth 0,3cm (Appellof). Length of Lecythia about 0,8cm (Sars). 

 Occurrence: Norway. Bergen on Saxicava pholadis [Lecythia M. Sars) Bergen, Manger (M. Sars, 



Schaudinn). Radofiord N. of Bergen, Alvarstrommen Bergen 30 — 40 

 fms. sand and mud (Appellof). Hardanger fiord. Straumastein 100 — 

 200 m, Eikevik 50 — 150 m (teste Grieg). Herlofiord, Dalstobugten 6 — 

 12 fms. mud (Appellof). Ulvesund Lestholmen, Skarebugten 60 — 100 m 

 shelly sand mixed with clay (teste Grieg). Vaagsfiord Holnaesviken 40 

 —100 fms. sand (teste Grieg). Vaagsfiord, Southern point of Skavoen to 

 Tomberviken (teste Grieg). Korshavn (G. O. Sars). 

 Exterior aspect: The most proximal part of the animal is modified into a small, not ampulla- 

 ceous, physa which is commonly involved, according to the statement of Appellof. The scapus is on trans- 

 verse-sections rounded, without longitudinal furrows, but with a thin periderm which is sometimes a little 

 wrinkled on preserved specimens, on account of the contraction of the column. If the arumal is wholly ex- 

 panded the insertions of the mesenteries are visible (according to Appellof). This author declares that the 



