1 



12 



ill 



1 



Porella elegantula, D Orb. 



Eschara eleganhda, Smitt (2.4, IV), p. 24, 154, tab. 26, 



fig. 140-146. 

 Porella eleganhda, Bidenkap (I), p. 627, tab. 25, fig. 7, 8 



Findesteder. St. 270. 223 (Jan Mayen). 



Fra Jan Mayen har Lorenz (16, p. 89, 90) opført 4 

 arter af slægten Porella, nemlig concinna, amtirostris, com- 

 pressa og laevis. Hertil blir nu ogsaa at føie eleganhda. 



Gen. Escharoides. 



Escharoides sarsii, Smitt. 

 Smitt (24, IV), p. 24, 158, tab. 26, fig. 147 

 Findesteder. Norskøerne, St. 270. 



154. 



Arten er ren arktisk. Fra Tromsøsundet har jeg 

 seet eksemplarer, som havcle en lignende vekstform som 

 Lepralia foliacea fra Englands kyst (f. eks. Plymouth 

 sound), idet kolonierne dannede pladeformigt udbredte og 

 sammenvoksede kavernøse masser. Se forøvrigt M. Sårs 

 (23, p. 141—144). 



Gen. Smittia. 



Smittia palmata, M. Sårs. 



? Flustra solida, Stimpson, Invertebrata of Grand Manan. 



„ „ Nordgaard (18), p. 15. 



Eschara palmata, M. Sårs (23), p. 146. 



„ „ Vigelius (31), p. 15, fig. 2, 3. 



Escharella palmata, Smitt (24, IV), p. 10, 77, tab. 24, fig. 

 42—46. 

 ,, . „ Smitt (26), p. 21. 



Smitt (27), p. 29. 

 „ „ Lorenz (16), p. 91. 



„ ; „ Stuxberg (29), p. 112. 



,. .. Levinsen (15), p. 14, tab. 27, fig. 3. 



Pseudo- flustra solidq, Bidenkap (1), p. 618. 



Findesteder. St. 18, 31, 48, 223, 251, 262, 267, 

 290, 326, 337, 363. 



I min fortegnelse over norske polyzoer opførte jeg 

 Sars's Eschara palmata som Flustra solida, Stimpson. Jeg 

 havde dengang ikke seet noget eksemplar af arten, og hen- 

 holdt mig til Jelleys katalog. Imidlertid behøver man ikke 

 at se længe paa den foråt finde ud, at den ikke godt kan 

 henføres til slegten Flustra, og Bidenkap (1), oprettede 

 saaledes en ny slegt (Pseudo flustra), hvor arten blev an- 

 bragt. Dette kunde visselig forsvares, men jeg har her 

 foretrukket at opføre den som en Smittia, da aviculariets 



Porella elegantula, D'Orb. 



Eschara eleganhda, Smitt (24, IV), pp. 24, 154; Pl. XXVI, 



figs. 140—146. 

 Porella eleganhda, Bidenkap (1), p. 627; Pl. XXV, figs. 7, 8. 



Occurrence. St, 270, 223 (Jan Mayen). 



Lorenz (16, pp. 89, 90) has established 4 species of 

 the genus Porella from Jan Mayen, viz. concinna, acidiros- 

 tris, compressa and lævis. To these must now also be added 

 eleganhda. 



Gen. Escharoides. 



Escharoides sarsii, Smitt. 

 Smitt (24, IV), pp. 24, 158; PL XXVI, figs. 147—154. 

 Occurrence. Norwegian islands, Station 270. 



The species is purely arctic. I have seen specimens 

 from Tromso Sound, that had a form of growth similar to 

 that of Lepralia foliacea from the English coast (e. g. 

 Plymouth Sound), as the colonies form lamellarly expanded 

 and aggregated cavernous masses. See also M. Sars (23, 

 pp. 141-144). 



Gen. Smittia. 



Smittia palmata, M. Sars. 



? Flustra solida, Stimpson, Invertebrata of Grand Manan. 



„ „ Xordgaard (18), p. 15. 



Eschara palmata, M. Sars (23), p. 146. 



„ „ Vigelius (31), p. 15, figs. 2, 3. 



Escharella palmata, Smitt (24, IV), pp. 10, 77; PL XXIV, 

 figs. 42 — 46. 

 Smitt (26), p. 21. 

 Smitt (27), p. 29. 

 „ „ Lorenz (16), p. 91. 



■'„ „ Stuxberg (29), p. 112. 



Levinsen (15), p. 14; Pl. XXVII, 

 fig. 3. 

 Pseudo-flustra solida, Bidenkap (1), p. 618. 



Occurrence. St. 

 290, 326, 337. 363. 



18, 31, 48, 223, 251, 262, 267, 



In my list of Norwegian polyzoans. I entered Sars's 

 Eschara palmata as Flustra solida, Stimpson. I had not 

 at that time seen any specimens of the species, and had 

 followed Jelley's catalogue. It need not be looked at long, 

 however, to see that it cannot well be referred to the 

 genus Flustra, and Bidenkap (1) therefore established a 

 new genus (Pseudo-flustra), in which the species was placed. 

 This may be quite justifiable, but I have preferred to enter 

 it as a Smittia, as the position and structure of the avi- 



an 



5*2 



